Artykuły w czasopismach: „Post-combustion system”

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Zhaofeng, Xu, He Xin, Xue Yali i Li Zheng. "Dynamic Simulation of Post-Combustion Capture System". Energy Procedia 37 (2013): 2164–71. http://dx.doi.org/10.1016/j.egypro.2013.06.095.

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Zhao, Li, Eko Primabudi i Detlef Stolten. "Investigation of a Hybrid System for Post-Combustion Capture". Energy Procedia 63 (2014): 1756–72. http://dx.doi.org/10.1016/j.egypro.2014.11.183.

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Berger, Adam H., Yuqi Wang, Abhoyjit S. Bhown, Anthony Castrogiovanni, Robert Kielb i Vladimir Balepin. "Thermodynamic Analysis of Post-combustion Inertial CO2 Extraction System". Energy Procedia 114 (lipiec 2017): 7–16. http://dx.doi.org/10.1016/j.egypro.2017.03.1140.

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Hussain, Arshad, Sarah Farrukh i Fozia T. Minhas. "Two-Stage Membrane System for Post-combustion CO2 Capture Application". Energy & Fuels 29, nr 10 (29.09.2015): 6664–69. http://dx.doi.org/10.1021/acs.energyfuels.5b01464.

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Fernández, Javier, Maria Sotenko, Vladimir Derevschikov, Anton Lysikov i Evgeny V. Rebrov. "A radiofrequency heated reactor system for post-combustion carbon capture". Chemical Engineering and Processing: Process Intensification 108 (październik 2016): 17–26. http://dx.doi.org/10.1016/j.cep.2016.07.004.

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Raksajati, Anggit, Minh Ho i Dianne Wiley. "Solvent Development for Post-Combustion CO2 Capture: Recent Development and Opportunities". MATEC Web of Conferences 156 (2018): 03015. http://dx.doi.org/10.1051/matecconf/201815603015.

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Chemical absorption is widely regarded as the most promising technology for post-combustion CO2 capture from large industrial emission sources with CO2 separation from natural gas using aqueous amine solvent system having been applied since the 1930s. The use of monoethanolamine (MEA) in CO2 absorption system possesses several drawbacks, such as high regeneration energy, high solvent loss, and high corrosion tendency. Various solvents have been developed for post-combustion CO2 capture application including the development of aqueous solvents and phase-change solvents. Some of these alternate solvents have been reported to have better solvent properties, which could improve the CO2 absorption system performance. This paper reviews key parameters involved in the design improvement of several chemical absorption process systems. In addition, some novel solvent systems are also discussed, for example encapsulated solvents systems. Some of the key solvent parameters that affect the capture performance, such as heat of reaction, absorption rate, solvent working capacity, solvent concentration, and solvent stability, are discussed in this paper, particularly in relation to the economic viability of the capture process. In addition, some guidelines for the future solvent development are discussed.

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Kawabata, Masako, Osamu Kurata, Norihiko Iki, Atsushi Tsutsumi i Hirohide Furutani. "System modeling of exergy recuperated IGCC system with pre- and post-combustion CO2 capture". Applied Thermal Engineering 54, nr 1 (maj 2013): 310–18. http://dx.doi.org/10.1016/j.applthermaleng.2013.01.029.

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Mulukutla, Tripura, Gordana Obuskovic i Kamalesh K. Sirkar. "Novel scrubbing system for post-combustion CO2 capture and recovery: Experimental studies". Journal of Membrane Science 471 (grudzień 2014): 16–26. http://dx.doi.org/10.1016/j.memsci.2014.07.037.

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Akinola, Toluleke E., Eni Oko, Yuanlin Gu, Hua-Liang Wei i Meihong Wang. "Non-linear system identification of solvent-based post-combustion CO2 capture process". Fuel 239 (marzec 2019): 1213–23. http://dx.doi.org/10.1016/j.fuel.2018.11.097.

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Zhao, Li, Alexander Otto, Martin Robinius i Detlef Stolten. "Investigation of the Cooling System of a Membrane-based Post-combustion Process". Energy Procedia 114 (lipiec 2017): 666–85. http://dx.doi.org/10.1016/j.egypro.2017.03.1210.

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Numaguchi, Ryohei, Junpei Fujiki, Hidetaka Yamada, Firoz, A. Chowdhury, Koji Kida, Kazuya Goto, Takeshi Okumura, Katsuhiro Yoshizawa i Katsunori Yogo. "Development of Post-combustion CO2 Capture System Using Amine-impregnated Solid Sorbent". Energy Procedia 114 (lipiec 2017): 2304–12. http://dx.doi.org/10.1016/j.egypro.2017.03.1371.

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Ustadi, Iman, Toufic Mezher i Mohammad R. M. Abu-Zahra. "Potential for Hybrid-Cooling System for the CO2 Post-Combustion Capture Technology". Energy Procedia 114 (lipiec 2017): 6348–57. http://dx.doi.org/10.1016/j.egypro.2017.03.1771.

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Jiang, Yanchi, Zhongxiao Zhang, Haojie Fan, Junjie Fan i Haiquan An. "Experimental study on hybrid MS-CA system for post-combustion CO2 capture". Greenhouse Gases: Science and Technology 8, nr 2 (12.12.2017): 379–92. http://dx.doi.org/10.1002/ghg.1749.

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Yun, H., i R. D. Reitz. "Combustion optimization in the low-temperature diesel combustion regime". International Journal of Engine Research 6, nr 5 (1.10.2005): 513–24. http://dx.doi.org/10.1243/146808705x30576.

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A microgenetic algorithm (μGA) code was applied to optimize experimentally an HSDI single-cylinder diesel engine equipped with a common rail fuel-injection system in order to reduce NOx, soot, and b.s.f.c. simultaneously. Four control factors were used, namely, start-of-injection (SOI) timing, intake boost pressure level, cooled exhaust gas recirculation (EGR) rate, and fuel-injection pressure. The search space was designed to be within the experimental capabilities of the engine and control system. The engine testing was done at 1550 r/min, and 25 per cent load. The optimum results showed significant improvements for the NOx and soot emissions. Through analysis of the combustion characteristics, the mechanisms of emission reduction were revealed. The optimum featured a long ignition delay due to retarded SOI timing, and low combustion temperatures as a result of high EGR rates. The resulting long time for mixing and low temperatures helps suppress soot formation. To explore further the effect of mixing on emissions in the low-temperature combustion regime, factors that enhance turbulent mixing rates, including the use of high injection pressures and post injections were examined. The results show that optimal post injections are useful further to reduce emissions when they feature a short injection pulse with an optimal dwell time between injections.

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Li, Le, Jianqin Suo, Han Yu i Longxi Zhang. "Optimal Design and Application of Gas Analysis System". Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 38, nr 1 (luty 2020): 104–13. http://dx.doi.org/10.1051/jnwpu/20203810104.

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To accurately measure the performance parameters of an aero-engine combustor under high-temperature and high-pressure environment, such as outlet temperature, combustion efficiency and pollutant emission, the optimal design of the existing gas sampling and analysis system was carried out, the data post-processing method was corrected, and the full-component enthalpy conservation method suitable for calculating combustor outlet temperature was established. A lean direct injection and low-pollution combustor was used to evaluate the performance and application of its gas analysis system and its data post-processing method. The investigation results indicate that the optimized gas analysis system meets the International Civil Aviation Organization's pollutant emission measurement requirements and that it has a fast response and a high data quality. The comparison of the measurement results of the gas analysis system with those of the traditional measurement methods shows that the gas analysis system has a more accurate measurement, a wider condition range and a better stability, thus accurately evaluating the outlet temperature, combustion efficiency and emission characteristics of a gas turbine combustor.

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Ma, Chenbin, Wenzhao Zhang, Yu Zheng i Aimin An. "Economic Model Predictive Control for Post-Combustion CO2 Capture System Based on MEA". Energies 14, nr 23 (5.12.2021): 8160. http://dx.doi.org/10.3390/en14238160.

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For the post-combustion CO2 capture (PCC) system, the time variability of the economic performance is key to the production process of such an actual industrial process. However, the performance index used by the conventional model predictive control (MPC) does not reflect the economy of the production process, so the economic cost function is used instead of the traditional performance index to measure the economy of the production process. In this paper, a complete dynamic model of the PCC system is constructed in Aspen Plus Dynamics. The effectiveness of the model is verified by dynamic testing; subspace identification is carried out using experimental data, a state-space equation between flue gas flow and lean solvent flow; the CO2 capture rate is obtained; and dynamic models and control algorithm models of accused objects are established in Matlab/Simulink. Under the background of the environmental protection policy, an economic model predictive control (EMPC) strategy is proposed to manipulate the PCC system through seeking the optimal function of the economic performance, and the system is guaranteed to operate under the economic optimal and excellent quality of the MPC control strategy. The simulation results verify the effectiveness of the proposed method.

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Razi, Neda, Hallvard F. Svendsen i Olav Bolland. "Simulation of Post-combustion CO2 Capture System Using New Effective Interfacial Area Correlation". Energy Procedia 51 (2014): 169–75. http://dx.doi.org/10.1016/j.egypro.2014.07.019.

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Asif, Muhammad, Muhammad Suleman, Ihtishamul Haq i Syed Asad Jamal. "Post-combustion CO2capture with chemical absorption and hybrid system: current status and challenges". Greenhouse Gases: Science and Technology 8, nr 6 (16.10.2018): 998–1031. http://dx.doi.org/10.1002/ghg.1823.

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Imran, Muhammad, Usman Ali i Ali Hasnain. "Impact of blends of aqueous amines on absorber intercooling for post combustion CO2 capture system". Energy & Environment 32, nr 5 (19.01.2021): 921–44. http://dx.doi.org/10.1177/0958305x20982835.

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Climate change is the biggest challenge of this century due to the global consequences of human activities on the ecosystem resulting in global warming. The emissions of greenhouse gases, mainly CO2 from the combustion of fossil fuels in the power plant is the main cause of global warming and to mitigate these emissions is the foremost challenge. Nowadays, the most preferred method is post combustion chemical absorption using amine-based solvents. However, high energy requirements for this method restrict its deployment. An efficient approach used for the reduction of the high energy requirement of post combustion CO2 capture process was absorber intercooling. Therefore, this research evaluates the effect of two configurations of intercooled absorber such as “simple” and “advanced” intercoolers for CO2 capture integrated with natural gas combined cycle power plant using aqueous alkanolamines, such as 30 wt.% monoethanolamine and 50 wt.% methyl-diethanolamine and their blends. For pure methyl-diethanolamine case, at lean loading 0.01 intercooling configurations; simple and advanced shows the highest reduction of 21.01% and 22.82% in the specific reboiler duty, respectively in comparison to other blends at the expense of highest liquid solvent flow rate. Simple and advanced intercooling configurations shows optimum results for the case with 40% monoethanolamine and 60% methyl-diethanolamine in a blend with decrease of 9.19% and 17.28% in solvent flow rate and a decrease of 9.42% and 16.83% in specific reboiler duty required for 90% CO2 capture rate, respectively. For pure monoethanolamine case at lean loading 0.2 absorber intercooling does not offer significant results.

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Wu, Ying, Ying Dai, Weiyi Xie, Haijun Chen i Yuezhao Zhu. "System integration for combined heat and power (CHP) plants with post-combustion CO2 capture". Energy Conversion and Management 258 (kwiecień 2022): 115508. http://dx.doi.org/10.1016/j.enconman.2022.115508.

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Liao, Peizhi, Xiao Wu, Yiguo Li, Meihong Wang, Jiong Shen, Adekola Lawal i Chuanlong Xu. "Application of piece-wise linear system identification to solvent-based post-combustion carbon capture". Fuel 234 (grudzień 2018): 526–37. http://dx.doi.org/10.1016/j.fuel.2018.07.045.

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Liu, Kun, Guojie Qi, Naser Matin, Reynolds Frimpong i Kunlei Liu. "Study of a Novel Solvent System for CO2 Capture from Post-Combustion Flue Gas". Energy Procedia 63 (2014): 1927–32. http://dx.doi.org/10.1016/j.egypro.2014.11.202.

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Zhao, Ruikai, Li Zhao, Shuai Deng, Yuting Tan, Yinan Liu i Zhixin Yu. "Techno-economic Study of Solar-assisted Post-combustion Carbon Capture System Integrated with Desalination". Energy Procedia 61 (2014): 1614–17. http://dx.doi.org/10.1016/j.egypro.2014.12.306.

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Yeh, Chung Wei. "An Integrated Multimedia Learning System for Reciprocating Internal Combustion Engines: RICEM". Advanced Materials Research 213 (luty 2011): 211–15. http://dx.doi.org/10.4028/www.scientific.net/amr.213.211.

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A cost-effective multimedia learning system, RICEM, for reciprocating internal combustion engines was proposed in this study. This system contained the graphical introduction of engine components, engine structure animation, feedback and assessment based on Mayer’s multimedia learning cognitive theory. Reciprocating internal combustion engines are used all over the world to drive compressors, pumps, electric generators, motor ships and other equipments. We used multimedia software to construct the learning system. An experiment comprising of two groups of 30 participants separately was conduct to test the effectiveness and showed that there was a significant difference between the pre-test and post-test score in the RICEM group, as compared with the control group. This study suggested that a collaborative application appeared to be promising in supporting effective learning of modern technology, by combining the integration of learning theory and multimedia design.

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Yeh, Chung Wei, i Kee Rong Wu. "An Integrated Multimedia Learning System for Reciprocating Internal Combustion Engines: RICEM". Applied Mechanics and Materials 39 (listopad 2010): 91–96. http://dx.doi.org/10.4028/www.scientific.net/amm.39.91.

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A cost-effective multimedia learning system, RICEM, for reciprocating internal combustion engines was proposed in this study. This system contained the graphical introduction of engine components, engine structure animation, thermal theory, feedback and assessment based on Mayer’s multimedia learning cognitive theory. Reciprocating internal combustion engines are used all over the world to drive compressors, pumps, electric generators, motor ships and other equipments. We used multimedia software to construct the learning system. An experiment comprising of two groups of 30 participants separately was conduct to test the effectiveness and showed that there was a significant difference between the pre-test and post-test score in the RICEM group, as compared with the control group. This study suggested that a collaborative application appeared to be promising in supporting effective learning of modern technology, by combining the integration of learning theory and multimedia design.

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Eftaiha, Ala'a F., Fatima Alsoubani, Khaleel I. Assaf, Werner M. Nau, Carsten Troll i Abdussalam K. Qaroush. "Chitin-acetate/DMSO as a supramolecular green CO2-phile". RSC Advances 6, nr 26 (2016): 22090–93. http://dx.doi.org/10.1039/c6ra03022j.

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The supramolecular chemisorption of CO₂ by the oligosaccharide chitin-acetate (CA) in DMSO as a green, binary sorbent-based system offers a potential, novel and eco-friendly approach for post combustion capture applications.

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Maglia, F., U. Anselmi-Tamburini, G. Cocco, M. Monagheddu, N. Bertolino i Z. A. Munir. "Combustion synthesis of mechanically activated powders in the Ti–Si system". Journal of Materials Research 16, nr 4 (kwiecień 2001): 1074–82. http://dx.doi.org/10.1557/jmr.2001.0149.

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The effect of the mechanical activation of the reactants on the self-propagating high-temperature synthesis (SHS) of titanium silicides was investigated. SHS experiments were performed on reactant powders that were milled for different times. Mechanical activation was shown to have a large influence on the combustion characteristics, particularly on wave speed. A much weaker effect was observed on the products phase composition. Single-phase products were obtained only from Ti:Si = 1:2 and Ti:Si = 5:3 starting compositions. Observation of microstructural evolution in quenched reactions of Ti:Si = 1:2 mixtures milled for relatively long times revealed that the combustion reaction was primarily a solid-state process restricted to a surface layer of the large Ti grains. A secondary process involving a solid–liquid interaction between solid Ti and melted Si was dominant in the post front region. The mechanical activation in this case took the role of increasing the contact surface between the reactants. A single reaction coalescence mechanism involving only liquid phases was proposed for the Ti:Si = 5:3 composition. For this composition the apparent activation energy for the overall combustion process was determined (155 kJ mol−1) and was shown to be independent on the degree of mechanical activation of the reactants.

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Pogozhev, Yu S., A. Yu Potanin, E. A. Bashkirov, E. A. Levashov, D. Yu Kovalev i N. A. Kochetov. "Self-propagating high-temperature synthesis of heterophase materials in the Zr–Mo–Si–B system. Kinetics and mechanisms of combustion and structure formation". Izvestiya Vuzov. Tsvetnaya Metallurgiya (Universities' Proceedings Non-Ferrous Metallurgy), nr 5 (20.10.2022): 66–77. http://dx.doi.org/10.17073/0021-3438-2022-5-66-77.

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The paper focuses on the study of the combustion kinetics and mechanisms of elemental mixtures in the Zr–Mo–Si–B system, as well as the analysis of phase and structural transformation stages in the combustion wave. A thermodynamic analysis of potential chemical reactions occurring in the combustion wave was carried out. The reaction of ZrB2 formation is preferred in the range of 298–2500 K. Above 2200 K, the formation of MoB becomes more thermodynamically advantageous as compared to MoSi2. Phase stability estimates of combustion products showed that ZrB2, MoSi2 and MoB phases are in equilibrium. Experimental dependences Тc(Т0) and Uc(Т0) are linear, which implies an unchanged combustion mechanism at T0 = 298÷800 K. Preheating leads to an increase in Uc. Similarly, an increase in the proportion of Zr and B in the mixture has a similar effect, i.e. an increase in heat emission and Tc. With a minimum content of Zr and B, the interaction between Mo and Si with the formation of MoSi2 by the reaction diffusion mechanism is decisive. As the proportion of Zr and B increases, the rise of T0 to 750 K does not affect the Tc. Eeff values (50–196 kJ/mol) confirm the significant influence of liquid-phase processes on the combustion kinetics. The mechanism of structure formation was studied. A Si–Zr–Mo melt is formed in the combustion front. The primary grains of ZrB2 and MoB crystallize from this melt as it is saturated with boron. At the same time, the melt spreads over the surface of Zr and Mo particles. This leads to the formation of ZrSix, MoSix films. Core-shell structures are formed behind the combustion front, which disappear as they move towards the post-combustion zone. The phase composition of products is formed in the combustion front in less than 0.25 s.

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Zhang, Xin, Binayak Ojha, Hermann Bichlmaier, Ingo Hartmann i Heinz Kohler. "Extensive Gaseous Emissions Reduction of Firewood-Fueled Low Power Fireplaces by a Gas Sensor Based Advanced Combustion Airflow Control System and Catalytic Post-Oxidation". Sensors 23, nr 10 (11.05.2023): 4679. http://dx.doi.org/10.3390/s23104679.

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In view of the tremendous emissions of toxic gases and particulate matter (PM) by low-power firewood-fueled fireplaces, there is an urgent need for effective measures to lower emissions to keep this renewable and economical source for private home heating available in the future. For this purpose, an advanced combustion air control system was developed and tested on a commercial fireplace (HKD7, Bunner GmbH, Eggenfelden, Germany), complemented with a commercial oxidation catalyst (EmTechEngineering GmbH, Leipzig, Germany) placed in the post-combustion zone. Combustion air stream control of the wood-log charge combustion was realized by five different control algorithms to describe all situations of combustion properly. These control algorithms are based on the signals of commercial sensors representing catalyst temperature (thermocouple), residual oxygen concentration (LSU 4.9, Bosch GmbH, Gerlingen, Germany) and CO/HC-content in the exhaust (LH-sensor, Lamtec Mess- und Regeltechnik für Feuerungen GmbH & Co. KG, Walldorf (Germany)). The actual flows of the combustion air streams, as calculated for the primary and secondary combustion zone, are adjusted by motor-driven shutters and commercial air mass flow sensors (HFM7, Bosch GmbH, Gerlingen, Germany) in separate feedback control loops. For the first time, the residual CO/HC-content (CO, methane, formaldehyde, etc.) in the flue gas is in-situ monitored with a long-term stable AuPt/YSZ/Pt mixed potential high-temperature gas sensor, which allows continuous estimation of the flue gas quality with an accuracy of about ±10%. This parameter is not only an essential input for advanced combustion air stream control but also provides monitoring of the actual combustion quality and logging of this value over a whole heating period. By many firing experiments in the laboratory and by field tests over four months, it could be demonstrated that with this long-term stable and advanced automated firing system, depression of the gaseous emissions by about 90% related to manually operated fireplaces without catalyst could be achieved. In addition, preliminary investigations at a firing appliance complemented by an electrostatic precipitator yielded PM emission depression between 70% and 90%, depending on the firewood load.

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Koiwanit, Jarotwan, Lakkana Piewkhaow, Qing Zhou, Anastassia Manuilova, Christine W. Chan, Malcolm Wilson i Paitoon Tontiwachwuthikul. "A life cycle assessment study of a Canadian post-combustion carbon dioxide capture process system". International Journal of Life Cycle Assessment 19, nr 2 (3.09.2013): 357–69. http://dx.doi.org/10.1007/s11367-013-0649-2.

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Karthickeyan, V., B. Ashok, K. Nanthagopal, S. Thiyagarajan i V. Edwin Geo. "Investigation of novel Pistacia khinjuk biodiesel in DI diesel engine with post combustion capture system". Applied Thermal Engineering 159 (sierpień 2019): 113969. http://dx.doi.org/10.1016/j.applthermaleng.2019.113969.

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Liu, Lianbo, Shiqing Wang, Hongwei Niu i Shiwang Gao. "Process and Integration Optimization of Post-Combustion CO2 Capture System in a Coal Power Plant". Energy Procedia 154 (listopad 2018): 86–93. http://dx.doi.org/10.1016/j.egypro.2018.11.015.

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BUESCHKE, Wojciech, Maciej SKOWRON, Krzysztof WISŁOCKI i Filip SZWAJCA. "Comparative study on combustion characteristics of lean premixed CH4/air mixtures in RCM using spark ignition and turbulent jet ignition in terms of orifices angular position change". Combustion Engines 176, nr 1 (1.02.2019): 36–41. http://dx.doi.org/10.19206/ce-2019-105.

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The increase in ignitability consist a main aim of implementation of the turbulent jet ignition (TJI) in relation to the combustion of diluted charges. Such an ignition system has been introduced to the lean-burn CNG engine in the scope of GasOn-Project (Gas Only Internal Combustion Engines). In this study the impact of TJI application on the main combustion indexes has been investigated using RCM and analyzed on the bases of the indicating and optical observations data. The images have been recorded using LaVision HSS5 camera and post-processed with Davis software. Second part of the study based on indicating measurements consist the analysis of combustion regarding the variation in the geometry of pre-chamber nozzles. It has been noted, that combustion with TJI indicates signi- ficantly bigger flame luminescence and simultaneously – faster flame front development, than the combustion initiated with conventional SI. The positive impact of nozzles angular position on engine operational data has been found in the static charge movement conditions, regarding the combustion stability.

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Cui, Qian, Baodeng Wang, Xinglei Zhao, Guoping Zhang, Zhendong He, Yinhua Long, Yongwei Sun i Anthony Y. Ku. "Post-combustion slipstream CO2-capture test facility at Jiangyou Power Plant, Sichuan, China: performance of a membrane separation module under dynamic power-plant operations". Clean Energy 5, nr 4 (17.11.2021): 742–55. http://dx.doi.org/10.1093/ce/zkab049.

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Abstract Membrane-based separation technologies have the potential to lower the cost of post-combustion CO2 capture from power-plant flue gases through reduced energy and capital costs relative to conventional solvent approaches. Studies have shown promise under controlled conditions, but there is a need for data on performance and reliability under field conditions. Coal-fired power plants in China operate in a dynamic manner, with increases and decreases in output causing changes in flue-gas composition. In this paper, we describe the first field test of a membrane-based post-combustion CO2-capture system connected to a dynamically operating power plant in China. We report the performance of a Membrane Technology Research, Inc. (MTR) PolarisTM membrane-based capture system over a range of plant operating loads ranging from 54% to 84% and conducted an operational stability test over a 168-h period during which the power plant was operating at an average load of 55%, but ramped as high as 79% and as low as 55%. Our results confirm the ability of a membrane capture system to operate effectively over a wide range of host-plant operating conditions, but also identity several issues related to plant integration, system control and resilience in the face of host-plant upsets that require attention as membrane separation systems move towards commercial use.

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Klunk, Marcos Antônio, Sudipta Dasgupta, Mohuli Das i Zeban Shah. "System of Adsorption of CO2 in Coalbed". Southern Brazilian Journal of Chemistry, Volume 26, No. 26, 2018 26, nr 26 (30.06.2018): 2–9. http://dx.doi.org/10.37633/sbjc.26(26)2018.2-9.

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Carbon capture and storage (CCS) has been observed as an alternative measure to mitigate emissions from greenhouse gases. CCS systems separate CO2 during the process of converting fuel and transport to the facilities where they are stored, e.g., under geological formation conditions. Capture and sequestration technologies are now widely used in different industries. CO2 capture is currently a costly and energy-consuming technology. The costs obviously depend on the size of the plant and the type of fuel used. Generally, capture systems are categorized into three categories: pre-combustion, post-combustion, and oxy-fuel combustion. The saline aquifer, depleted oil, and gas fields are large-capacity storage sinks. The coalbeds also provide as a substitute to geological storage. One of the main advantages of coal storage is renewable methane fuel and coal desulfurization. The studied coal reserves are located in Candiota, State of Rio Grande do Sul, Brazil. These are the largest coal deposits in the country, with a reserve of 1 billion tons. This work will represent a study on CO2 storage in Candiota coalbed system. The use of a synthetic CO2 cylinder with a flow of 0.2 L /min varies the time of contact with the coalbed. The results from the volatile matter increase by 11%. The results of the ultimate analysis exhibited an 8% increase for carbon and oxygen after 60 minutes of CO2 flow in the coalbed. On the other hand, there was a reduction of 32% for sulfur. The resultant phenomena occur due to the adsorption capacity of CO2, where the compounds are released from the pores of coal

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KLUNK, Marcos Antônio, Sudipta DASGUPTA, Mohuli DAS i Zeban SHAH. "SYSTEM OF ADSORPTION OF CO2 IN COALBED". SOUTHERN BRAZILIAN JOURNAL OF CHEMISTRY 26, nr 26 (20.12.2018): 2–9. http://dx.doi.org/10.48141/sbjchem.v26.n26.2018.7_2018.pdf.

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Carbon capture and storage (CCS) has been observed as an alternative measure to mitigate emissions from greenhouse gases. CCS systems separate CO2 during the process of converting fuel and transport to the facilities where they are stored, e.g., under geological formation conditions. Capture and sequestration technologies are now widely used in different industries. CO2 capture is currently a costly and energy-consuming technology. The costs obviously depend on the size of the plant and the type of fuel used. Generally, capture systems are categorized into three categories: pre-combustion, post-combustion, and oxy-fuel combustion. The saline aquifer, depleted oil, and gas fields are large-capacity storage sinks. The coalbeds also provide as a substitute to geological storage. One of the main advantages of coal storage is renewable methane fuel and coal desulfurization. The studied coal reserves are located in Candiota, State of Rio Grande do Sul, Brazil. These are the largest coal deposits in the country, with a reserve of 1 billion tons. This work will represent a study on CO2 storage in Candiota coalbed system. The use of a synthetic CO2 cylinder with a flow of 0.2 L/min varies the time of contact with the coalbed. The results from the volatile matter increase by 11%. The results of the ultimate analysis exhibited an 8% increase for carbon and oxygen after 60 minutes of CO2 flow in the coalbed. On the other hand, there was a reduction of 32% for sulfur. The resultant phenomena occur due to the adsorption capacity of CO2, where the compounds are released from the pores of coal.

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Silva, Raquel de Pádua Fernandes, José Luiz de Medeiros i Ofélia de Queiroz Fernandes Araújo. "Integration of Post-Combustion Capture and Reinjection Plant to Power Generation Cycle Using CO₂-Rich Natural Gas in Offshore Oil and Gas Installation". Materials Science Forum 965 (lipiec 2019): 49–58. http://dx.doi.org/10.4028/www.scientific.net/msf.965.49.

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The use of CO2-rich natural gas (%CO2 ≈ 20%mol) for power generation in offshore hubs results in simpler upgrade process, while imposes an extra challenge to mitigate emissions. Power generation via combined cycle configurations and post-combustion capture with CO2 reinjection are investigated for carbon-footprint reduction, while increasing gas export and oil production, respectively. The processes are simulated using Aspen HYSYS software and compared to currently installed simple cycle configuration in terms of footprint, weight, power, efficiency and CO2 emissions. The combined cycle including two gas turbines and one single-pressure steam cycle (CC 2:1:1) results in the most favorable power system, having 53% efficiency, 476.8 gCO2/kWh emissions and similar dimensions compared to the simple cycle. The integration of a post-combustion capture sending the CO2 for enhanced oil recovery results in 241 gCO2/kWh for the CC 2:1:1 and 251 gCO2/kWh for the simple cycle, without great impacts in total efficiency. The CC 2:1:1 with post-combustion capture presents higher net efficiency, lower dimensions and greater economic advantages, enabling emissions reduction without having significant impacts on the power generation.

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Koiwanit, Jarotwan, Teeradet Supap, Christine Chan, Don Gelowitz, Raphael Idem i Paitoon Tontiwachwuthikul. "An expert system for monitoring and diagnosis of ammonia emissions from the post-combustion carbon dioxide capture process system". International Journal of Greenhouse Gas Control 26 (lipiec 2014): 158–68. http://dx.doi.org/10.1016/j.ijggc.2014.04.016.

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Adderley, B., J. Carey, J. Gibbins, M. Lucquiaud i R. Smith. "Post-combustion carbon dioxide capture cost reduction to 2030 and beyond". Faraday Discussions 192 (2016): 27–35. http://dx.doi.org/10.1039/c6fd00046k.

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Post-combustion CO₂ capture (PCC) can be achieved using a variety of technologies. Importantly it is applicable to a wide range of processes and may also be retrofitted in certain cases. This paper covers the use of PCC for low carbon power generation from new natural gas combined cycle (NGCC) plants that are expected to be built in the UK in the 2020s and 2030s and that will run into the 2050s. Costs appear potentially comparable with other low carbon and controllable generation sources such as nuclear or renewables plus storage, especially with the lower gas prices that can be expected in a carbon-constrained world. Non-fuel cost reduction is still, however, desirable and, since CO₂ capture is a new application, significant potential is likely to exist. For the NGCC+PCC examples shown in this paper, moving from ‘first of a kind’ (FOAK) to ‘nth of a kind’ (NOAK) gives significant improvements through both reduced financing costs and capital cost reductions. To achieve this the main emphasis needs to be on ‘commercial readiness’, rather than on system-level ‘technical readiness’, and on improvements through innovation activities, supported by underpinning research, that develop novel sub-processes; this will also maintain NOAK status for cost-effective financing. Feasible reductions in the energy penalty for PCC capture have much less impact, reflecting the inherently high levels of efficiency for modern NGCC+PCC plants.

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Potanin, A. Yu, E. A. Bashkirov, Yu S. Pogozhev, D. Yu Kovalev, N. A. Kochetov, P. A. Loginov i E. A. Levashov. "Self-propagating high-temperature synthesis of MoAlB boride ceramics based on MAB-phase". Izvestiya vuzov. Poroshkovaya metallurgiya i funktsional’nye pokrytiya, nr 2 (16.06.2022): 38–51. http://dx.doi.org/10.17073/1997-308x-2022-2-38-51.

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This study focuses on the combustion kinetics and mechanisms of reaction mixtures in the Mo–Al–B ternary system taken so that the MoAlB MAB phase was formed. The effect of the initial temperature on the key combustion parameters was demonstrated. Reaction mixture preheating was found to weakly affect the maximum combustion temperature. The effective activation energy of self-propagating high-temperature synthesis (SHS) was calculated. Phase diagrams in the Mo–Al–B system were built using the AFLOW and Materials Project databases. The phase composition and structure of the synthesized ceramics with MoAlB lamellar grains 0.4 μm thick and ~2–10 μm long as a main component were studied. The DXRD lines of MoB and Mo2B5 intermediate borides with their total content of ≤3 % were also identified. Scanning electron microscopy and energy dispersive spectroscopy studies revealed that the Al2O3 phase was present in the intergranular pores. A sequence of chemical transformations in the combustion wave was studied, and a hypothesis about the structure formation mechanism was put forward. MoO2 and Al2O3 can be the primary phases during SHS, and the MoAlB phase is formed from the boron-containing aluminum–molybdenum melt. Submicron-sized MoB precipitates are formed in the post-combustion zone due to the partial oxidation of aluminum by the dispersion strengthening mechanism.

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Zhao, Ting Feng, Qi Hui Zeng, Bao Hong Hao i Ding Zeng. "Microscopic Molecular Assembly and Catalytic Mechanism of Rare Earth-Alumina Nanocomposite Devoted to Reducing PM2.5". Key Engineering Materials 837 (kwiecień 2020): 161–67. http://dx.doi.org/10.4028/www.scientific.net/kem.837.161.

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Automobile exhaust is one of the sources of PM2.5, which can merely be catalytically decomposed by a "post-treatment" three-way catalytic device at present. Afront-treatment device based on rare earth-alumina nanocomposite in gasoline was innovatively introduced. nanoalumina and rare earth elements are function as the backbone and carrier, respectively. Microscopic molecular assembly and catalytic mechanism were studied to synthesize metastable ordered mesoporous with high degree of aggregation. Mesh filter of rare earth-alumina nanocatalytic composite with self-sustained release function is formed by sintering, which can be solidified in an automotive air intake system. Results show that rare earth-aluminum nanocomposite contributes to catalytic combustion and makes combustion more complete. Moreover, it has a better effect of reducing PM2.5 than a "post-treatment" device in terms of catalytic effect.

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Zheng, Liangfu, James Landon, Neal C. Koebcke, Payal Chandan i Kunlei Liu. "Suitability and Stability of 2-Mercaptobenzimidazole as a Corrosion Inhibitor in a Post-Combustion CO2Capture System". CORROSION 71, nr 6 (czerwiec 2015): 692–702. http://dx.doi.org/10.5006/1524.

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Luo, Yang, Yang Hu, Guangjuan Guo, Qinglan Ma, Aixian Liu, Qiang Sun i Xuqiang Guo. "Multiphase flash calculation for system containing TBAB semiclathrate: Application to semiclathrate-based post-combustion CO2 capture". Fluid Phase Equilibria 476 (listopad 2018): 157–69. http://dx.doi.org/10.1016/j.fluid.2018.08.007.

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Nord, Lars O., Rahul Anantharaman, Actor Chikukwa i Thor Mejdell. "CCS on Offshore Oil and Gas Installation - Design of Post-Combustion Capture System and Steam Cycle". Energy Procedia 114 (lipiec 2017): 6650–59. http://dx.doi.org/10.1016/j.egypro.2017.03.1819.

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Sifat, Najmus S., i Yousef Haseli. "A Critical Review of CO2 Capture Technologies and Prospects for Clean Power Generation". Energies 12, nr 21 (30.10.2019): 4143. http://dx.doi.org/10.3390/en12214143.

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With rapid growth in global demand for energy, the emission of CO2 is increasing due to the use of fossil fuels in power plants. Effective strategies are required to decrease the industrial emissions to meet the climate change target set at 21st Conference of the Parties (COP 21). Carbon capture and storage have been recognized as the most useful methods to reduce the CO2 emissions while using fossil fuels in power generation. This work reviews different methods and updates of the current technologies to capture and separate CO2 generated in a thermal power plant. Carbon capture is classified in two broad categories depending on the requirement of separation of CO2 from the gases. The novel methods of oxy combustion and chemical looping combustion carbon capture have been compared with the traditional post combustion and precombustion carbon capture methods. The current state of technology and limitation of each of the processes including commonly used separation techniques for CO2 from the gas mixture are discussed in this review. Further research and investigations are suggested based on the technological maturity, economic viability, and lack of proper knowledge of the combustion system for further improvement of the capture system.

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Xifré-Salvadó, Miquel Àngel, Núria Prat-Guitart, Marcos Francos, Xavier Úbeda i Marc Castellnou. "Smouldering Combustion Dynamics of a Soil from a Pinus halepensis Mill. Forest. A Case Study of the Rocallaura Fires in Northeastern Spain". Applied Sciences 10, nr 10 (16.05.2020): 3449. http://dx.doi.org/10.3390/app10103449.

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This study analyses the smouldering combustion on soils that took place during the wildfires that occurred in Rocallaura (Northeastern Spain). The smouldering combustion after the first event, 23 June, was the potential source of flaming fire re-ignition of the second event, 19 July 2016. Re-ignitions are an important challenge for the firefighting system. Budget and efforts are spent on controlling these re-ignitions that can ultimately cause the collapse of the response system if the re-ignitions happen during periods of simultaneous fire events. Our objective is to contribute to better understand the dynamics of the smouldering combustion of organic soils associated with these wildfires and the impact on the Pinus halepensis Mill. forest ecosystem. Transects were established in adjacent control and post-fire zones. Laboratory analyses were conducted to determine some physical and chemical properties of both the duff and mineral soil. Using these variables, we estimate thresholds of duff ignition probability, percentage of duff consumption and smouldering combustion spread rates. Overall, we provide a set of tools for evaluating re-ignitions in forest ecosystems. We conclude that the concept of fire persistence should be a new variable for consideration in present and future analysis of fire regimes and demonstrates the significance of introducing smouldering combustion and re-ignition within the strategic framework of the wildfire hazard and integrating these phenomena into forest planning and management.

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Guo, Kangkang, Yongjie Ren, Yiheng Tong, Wei Lin i Wansheng Nie. "Analysis of self-excited transverse combustion instability in a rectangular model rocket combustor". Physics of Fluids 34, nr 4 (kwiecień 2022): 047104. http://dx.doi.org/10.1063/5.0086226.

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A methane/oxygen mixture is considered to be an appropriate propellant for many future rocket engines due to its practicality and low cost. To better understand the combustion instability in methane/oxygen-fed rocket engines, the spontaneous transverse combustion instability in a rectangular multi-element combustor (RMC) was analyzed both experimentally and numerically. Severe combustion instabilities occurred in the RMC during repeatable hot-fire tests. The physical mechanisms were systematically investigated through numerical simulations based on the stress-blended eddy simulation and flamelet-generated manifolds method with detailed chemical mechanisms (GRI Mech 3.0). The numerical results for the frequency spectrum and spatial modes agree well with the theoretical analysis and experimental data. The driven regions of the combustion instability were identified on both sides of the combustion chamber through a Rayleigh index analysis. The longitudinal pressure oscillations in the oxidizer post were found to be coupled with the transverse pressure waves in the combustion chamber and led to periodic oscillations of the mass flow rate of propellant. Moreover, the mixing was highly enhanced when the pressure wave interacted with walls of the combustion chamber. Therefore, a sudden release of heat occurred. The pressure oscillations were enhanced by pulsated heat release. A closed-loop system with positive feedback associated with periodic oscillations mass flow rate of the propellant, and sudden heat release, was believed to account for the present combustion instability.

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Li, Ming Hai, Feng Jiang, Biao Liu i Ming Gao Ouyang. "Simulation Research on Post-Injection of Electronically Controlled Heavy-Duty Diesel Engine". Applied Mechanics and Materials 121-126 (październik 2011): 2238–42. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.2238.

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GT-Suite software is used to establish the simulation model of electronic fuel injection system for 16V280ZJ diesel engine. Combustion process simulation calculation is conducted to the direct injection (DI) diesel engine based on a main-post double injection scheme. Simulation parameters are modified based on the comparison with given experimental results. The calculation results effectively reflect the influence of fuel ratio and the interval angle between main and post injection over emission and fuel economy. Finally, in order to improve the engine emissions and reduce the pressure rise rate, we get the optimal injection solution for the main-post injection mode.

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Chen, Hai Ping, Zhong Ping Wang i Wen Hao Wu. "Simulation of the Multiple Cyclic CCRs Process Based on ASPEN PLUS". Advanced Materials Research 516-517 (maj 2012): 195–201. http://dx.doi.org/10.4028/www.scientific.net/amr.516-517.195.

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The carbonate looping process is a promising technology for post-combustion CO2 capture from power plants.CO2 capture is performed in a system of two fluidized bed reactors.In this paper, material and energy of the process have been performed using ASPEN PLUS.The present study focuses on energy recovery of CCRs system and the effect of make-up mass flow on circulating solids mass flow, coal feed to the calciner, and CO2 capture efficiency.

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Wu, Xing, Debra Fernandes, Paul Feron, Mingmei Ding, Hang Xu i Zongli Xie. "Production of cooling water by Ti3C2Tx MXene interlayered forward osmosis membranes for post-combustion CO2 capture system". Journal of Membrane Science 641 (styczeń 2022): 119877. http://dx.doi.org/10.1016/j.memsci.2021.119877.

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