Bibliografías temáticas / Multifunctional Lube Oil Additives

Literatura académica sobre el tema "Multifunctional Lube Oil Additives"

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Publicado: 18 de mayo de 2024

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Artículos de revistas sobre el tema "Multifunctional Lube Oil Additives"

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Ghosh, Pranab y Mainul Hoque. "Multifunctional lube oil additives based on maleic anhydride". Petroleum Science and Technology 34, n.º 21 (1 de noviembre de 2016): 1761–67. http://dx.doi.org/10.1080/10916466.2016.1225089.

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Mehbad, Noura El. "Developments of Multifunctional Additives for High Quality Lube Oil". Journal of Power and Energy Engineering 01, n.º 05 (2013): 84–89. http://dx.doi.org/10.4236/jpee.2013.15014.

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Upadhyay, M., K. Dey y P. Ghosh. "Biodegradable multifunctional additives for lube oil: Synthesis and characterization". Petroleum Science and Technology 34, n.º 14 (17 de julio de 2016): 1255–62. http://dx.doi.org/10.1080/10916466.2016.1190755.

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Abdel-Azim, A., A. M. Nasser, N. S. Ahmed y R. S. Kamal. "Multifunctional Lube Oil Additives Based on Octadecene-Maleic Anhydride Copolymer". Petroleum Science and Technology 29, n.º 1 (enero de 2011): 97–107. http://dx.doi.org/10.1080/10916460903069829.

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Ghosh, P., K. Dey, M. Upadhyay y T. Das. "Multifunctional biodegradable lube oil additives: Synthesis, characterization, and performance evaluation". Petroleum Science and Technology 35, n.º 1 (29 de diciembre de 2016): 66–71. http://dx.doi.org/10.1080/10916466.2016.1248770.

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Nandi, Manishita y Pranab Ghosh. "Evaluation and Synthesis of Environmentally Benign Multifunctional Additives for Lube Oil". Asian Journal of Chemical Sciences 14, n.º 1 (3 de febrero de 2024): 42–49. http://dx.doi.org/10.9734/ajocs/2024/v14i1284.

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Behenyl acrylate (BA) homo-polymer and its copolymers with citral were synthesized with varying percentage compositions (w/w) and subjected to thorough characterization through GPC (gel permeation chromatography) analysis and spectroscopic techniques (FT-IR, NMR). The polymers' capability was assessed through viscosity index improvers/viscosity modifiers (VII or VM), anti wear (AW) additives and pour point depressants (PPD) for base oils (lubricating oil). The action mechanism of the PPD properties was investigated through photomicrographic analysis. Additionally, the thermal stability of the polymers was measured using TGA or thermo gravimetric analysis. Biodegradability tests on copolymers were conducted using soil burial test (SBT) and the Disc Diffusion (DD) method. The copolymers exhibited exceptional PPD, VII, and AW performance when incorporated into lubricating oil.
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Ghosh, Pranab y Moumita Das. "Synthesis, Characterization, and Performance Evaluation of Some Multifunctional Lube Oil Additives". Journal of Chemical & Engineering Data 58, n.º 3 (25 de febrero de 2013): 510–16. http://dx.doi.org/10.1021/je3008793.

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Dey, Koushik y Pranab Ghosh. "Potential Eco‐Friendly Multifunctional Lube Oil Additives: Synthesis, Characterization and Performance Evaluation". ChemistrySelect 6, n.º 30 (13 de agosto de 2021): 7604–12. http://dx.doi.org/10.1002/slct.202101784.

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Azim, A. A. A. Abdel, A. M. Nasser, N. S. Ahmed, A. F. El Kafrawy y R. S. Kamal. "Multifunctional Additives Viscosity Index Improvers, Pour Point Depressants and Dispersants for Lube Oil". Petroleum Science and Technology 27, n.º 1 (14 de enero de 2009): 20–32. http://dx.doi.org/10.1080/10916460701434621.

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Upadhyay, Mahua, Sujit Talikdar y Pranab Ghosh. "β-Pinene – acrylate copolymer as a potential biodegradable multifunctional additives for lube oil". Petroleum Science and Technology 35, n.º 21 (2 de noviembre de 2017): 2051–58. http://dx.doi.org/10.1080/10916466.2017.1380044.

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Tesis sobre el tema "Multifunctional Lube Oil Additives"

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Roy, Dibakar. "Modification of vegetable oils as a potential base oil and a multifunctional lube oil additive". Thesis, University of North Bengal, 2021. http://ir.nbu.ac.in/handle/123456789/4365.

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Paul, Sujan Kumar. "Synthesis and application of chemical additives in the field of lubricant formulation". Thesis, University of North Bengal, 2021. http://ir.nbu.ac.in/handle/123456789/4556.

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Dey, Koushik. "Synthesis and performance evaluation of chemical additives for lube oil". Thesis, University of North Bengal, 2017. http://ir.nbu.ac.in/handle/123456789/2628.

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Saha, Debasish Kumar. "Modification of lube oil properties by addition of organic polymeric additives". Thesis, University of North Bengal, 2018. http://ir.nbu.ac.in/handle/123456789/2704.

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Yeasmin, Sultana. "Synthesis and performance evaluation of organic polymeric additives for lube and crude oils". Thesis, University of North Bengal, 2019. http://ir.nbu.ac.in/handle/123456789/4031.

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Talukdar, Sujit. "Novel polymeric additives for modifying the performance of Lubricating oil". Thesis, University of North Bengal, 2017. http://ir.nbu.ac.in/handle/123456789/2676.

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Capítulos de libros sobre el tema "Multifunctional Lube Oil Additives"

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"Lube Oil Additives". En Alpha Olefins Applications Handbook, 347–70. CRC Press, 2014. http://dx.doi.org/10.1201/9781482254259-18.

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Actas de conferencias sobre el tema "Multifunctional Lube Oil Additives"

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Kumar, K. J., K. J. Santhosh y C. Sripati. "Multifunctional Bio-Additives, Remedial to Crude and all Fuel Oil Problems". En Canadian International Petroleum Conference. Petroleum Society of Canada, 2001. http://dx.doi.org/10.2118/2001-074.

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Kjemtrup, Lars, Rasmus Faurskov Cordtz, Martin Meyer y Jesper Schramm. "Experimental Investigation of Sulfuric Acid Condensation and Corrosion Rate in Motored BUKH DV24 Diesel Engine". En ASME 2017 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icef2017-3652.

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The work conducted in this paper presents a novel experimental setup to study sulfuric acid cold corrosion of cylinder liners in large two-stroke marine diesel engines. The process is simulated in a motored light duty BUKH DV24 diesel engine where the charge air contain known amounts of H2SO4 and H2O vapor. Liner corrosion is measured as iron accumulation in the lube oil. Similarly sulfuric acid condensation is assessed by measuring the accumulation of sulfur in the lube oil. To clarify the corrosive effect of sulfuric acid the lube oil utilized for experiments is a sulfur free neutral oil without alkaline additives (Chevron Neutral Oil 600R). Iron and sulfur accumulation in the lube oil is analyzed with an Energy Dispersive X-Ray Fluorescence (ED-XRF) apparatus. Three test cases with different H2SO4 concentrations are run. Results reveal good agreement between sulfuric acid injection flow and the accumulation of both iron and sulfur in the oil.
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Oldenburg, Thomas B. P., Harvey W. Yarranton y Steve Larter. "The Effect of Low Molecular Weight Multifunctional Additives on Heavy Oil Viscosity". En Canadian Unconventional Resources and International Petroleum Conference. Society of Petroleum Engineers, 2010. http://dx.doi.org/10.2118/137505-ms.

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Lejre, Kasper H., Søren Kiil, Peter Glarborg, Henrik Christensen y Stefan Mayer. "Reaction of Sulfuric Acid in Lube Oil: Implications for Large Two-Stroke Diesel Engines". En ASME 2017 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icef2017-3580.

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Slow-steaming operation and an increased pressure in the combustion chamber have contributed to increased sulfuric acid (H2SO4) condensation on the cylinder liners in large two-stroke marine diesel engines, thus causing increased corrosion wear. To cope with this, lube oils are formulated with overbased detergent additives present as CaCO3 reverse micelles to neutralize the condensing H2SO4. In this present work, a mixed flow reactor (MFR) setup aims to investigate the neutralization reaction by varying Ca/S molar ratio, stirrer speed, H2SO4 inlet concentration, and residence time. Lube oil samples from the outlet of the MFR were analysed by use of Fourier Transform Infrared Spectroscopy (FTIR) and a titration method. The MFR results indicate that the CaCO3-H2SO4 reaction is very fast in a real engine, if the cylinder liner is well-wetted, the oil-film is well-mixed, and contains excess of CaCO3 compared to the condensed H2SO4. The observed corrosion wear in large two-stroke marine diesel engines could consequently be attributed to local molar excess of H2SO4 compared to CaCO3 reverse micelles on the cylinder liners.
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Frittella, Francesco, Auribel Dos Santos, Hussam Jallad, Stephanie Hartanti y Andreas Sundblom. "Multifunctional Cementing Additives, A Way to Improve Rig Time Saving and Annulus Fluid/Gas Migration During Cement Placement". En Middle East Oil, Gas and Geosciences Show. SPE, 2023. http://dx.doi.org/10.2118/213673-ms.

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Abstract Controlling gas migration in the annular space during cement placement involves several challenges; especially in deep wells where temperature contrast leads to longer wait-on-cement (WOC) time, widening the window where fluids can migrate. Such extended setting is caused by the lower temperature in upper sections which impacts compressive strength build-up while also leads to higher rig time costs. In this paper, the authors focused on key aspects of slurry design to minimize these problems. Among the factors that contribute to the invasion and migration of gas and other fluids into the annular space, are insufficient hydrostatic pressure, poor slurry design, inefficient mud removal, problems during cement hydration, or defective cement-formation-casing bonding. For this study, an experimental method was followed to evaluate specific additives and their impact in gas control performance. Different slurry formulations were evaluated at a temperature range between 50°C and 110°C (120°F -230°F) while pressure kept at 5300 psi to minimize variables. The laboratory evaluation included tests for determining thickening time, rheology, compressive strength, fluid loss and gas migration. The slurry design involved the use of a novel retarder based on synthetic polymer with carboxylic acid functionality as well as a colloidal silica dispersion. The results showed that the selected additives allowed the slurries to achieve the targeted thickening time with a right-angle set, a short transition time and quick build up in compressive strength. In addition, the migration tests indicated excellent gas control under evaluated conditions. The studied additives performed well individually and even better combined, with a synergistic effect when preventing gas migration and accelerating compressive strength build-up. The additives evaluated showed multifunctional attributes that are beneficial not only to prevent gas migration and retard slurry setting, but also to accelerate compressive strength, a cement feature which allows significant savings in rig time costs.
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Fu, Xingguo, Xiaohong Xu y Xuguang Zhou. "The New Lubrication Technology and China’s Sustained Development". En World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63123.

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The application of new lubrication technology has a close relationship with the industrial development of automobile, machinery and transportation. Energy saving and environment protection are main two factors to push lubricants upgrades. Lubricant quality and correct application directly influence the use-life of machine, consumption of energy and environment protection. All over the world, especially in Western developed countries people pay more attention to the research and application of new lubricant technology. The lubricant specifications were reviewed and upgraded continuously according to the requirements of machine, fuel economy and emission. China’s sustained development means the ability to satisfy current human’s requirement as well as not to destroy nature resources for next generation. That also means we must balance the fast development of economy, society, resources and environment, we must protect natural resources and environment such as water, ocean, lands and forest which we live on, which can keep our next generation developing. Research and application of new lubricant technology is basic issues to keep China’s economy continuously growing. China’s petroleum consumption increased rapidly during the recent decades. There are two rapid period within 25 years after China’s application of opening and reform policy. The first is from 1978 to 1990, the whole petroleum consumption increased from 913 million to 1.18 billion tons respectively, increasing rate is 2.0% per year. The second was from 1991 to 2003, petroleum consumption increased from 1.18 billion to 2.74 billion tons, increasing rate was up to 6.7% per year. If we compare 2003 with 2001, the net petroleum consumption amount had increased 42million tons, increase rate is 8.7% per year. China now becomes one of biggest petroleum consumption country. The efficiency of China’s petroleum consumption is low. According to world petroleum consumption level (ton per thousand U.S. Dollar, GDP), China consumes four times more petroleum than that of Japan, three times of that of European, two times of that of USA. The wide application of low-grade lubricating oil and the lack of new lubrication technology are the main cause of the low-efficient petroleum usage. In the future decades petroleum shortages will be more and more strict in China, and it will have an important role in the delay of economic development and national safety. It is our lubricants workers duty to develop and apply the new lubrication technology to enhance the use efficiency of petroleum, to prevent our reliable environment and to push the China’s sustainable development. The world total consumption quantity of lubricating oil keeps about 37 to 39 million tons per year. It shares about 1% of total crude refining amount. The lube consumption amount in North American keeps stable about 9.5 million tons which listed No.1 while European and previous Unit Soviet area decreased. Asia is the only increased area, mainly because of the fast economic growth in China and India. China has consumed 4.4million tons lubricating oil in 2003, take about 1.6% of total crude refining amount, shares about 11% of whole world consumption amount, values about 22 billion RMB [1]. The increased rate reaches the highest—10.56% compared to 2002. This was the first time China become the second lubricant consumer in the world, just after USA. In 2004, China’s lubricants consumption will reach over 5 million tons, reaches the top in history, the increased rate will reach 10% comparing with 2003. China’s Automobile industry develops rapidly in the recent years, at the same time fuel efficiency keeps a low level. In 2002 China’s automobile has consumed 2.28 ton fuel per automobile which is 110–120 percent of USA, 200 percent of Japan. There exists a wide market for the application of new lubrication technology. The application of those additives and lube oils such as environment-friend additives, friction modified agents, nano-lube additives, energy-conserving multi-grade lube oils can enhance lubrication efficiency of equipments, decrease fuel consumption and conserve the petroleum resources. In this paper the applications of Cu nano-lube additive are introduced. and 0.1% Cu nano-lube is added into passenger car motor oil 5W30 SJ. The four-ball test equipment, cam-tappet test equipment and MS VI engine test are used to evaluate the performance, the test results shows the application of Cu nano-additive can obviously decrease the friction coefficient and fuel consumption. China should establish its national lube oil evaluation system, this system can greatly push the warranty of the quality of lube oil. The standard and national principle for fuel-conserving should be acted to improve the application of multi-grade lube oil and energy-conserving lube oil and new technology.
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Lin, Genyao, Jiangshui Huang, Lulu Song, Bryant Richardi, Jianshen Li, Fuchen Liu y Lijun Lin. "A New Polymer Based Multifunctional Fracturing Fluid With Enhanced Proppant Transport Capability". En SPE Annual Technical Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/214838-ms.

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Abstract Multifunctional fracturing fluid is desirable in the oil and gas industry as it can reduce operational complexity and footprints during hydraulic fracturing. Traditional slickwater fracturing fluid has limited proppant transport capability and lacks other functionalities. Most reported publications and practices on proppant transport enhancement were largely realized via increasing the viscosity of the fracturing fluid by using high viscosity friction reducer (HVFR) or simply increasing dosages. Recent multifunctional fracturing fluid research has also demonstrated that the combination of HVFR with nano-emulsion can provide the effect of spontaneous imbibition oil displacement to improve oil recovery (IOR) and thus achieving the goal of combining both hydraulic fracturing and IOR. While fracturing fluid with high viscosity has been used to increase its proppant carrying capability, it comes with the compromise of reduced fracturing length, fewer secondary fractures as well as requiring multiple additives to achieve multifunctionalities. In response to the industrial needs of multifunctional fracturing fluids with reduced operational footprints, we report a multifunctional fracturing fluid based on a novel single polymer system containing oil-displacement surfactant. The new polymer based fracturing fluid was characterized in terms of friction reduction, proppant settling, rheological properties and Amott cell spontaneous imbibition tests. The flow loop results showed that the new polymer system based fracturing fluid can achieve friction reduction of more than 70% in both fresh water and 55K brine. Remarkably, the new fracturing fluid at 0.4wt% can suspend the 20-40 mesh ceramic proppant for an extended period without apparent settling. Breaker studies and rheological properties of the fluid were performed using traditional breaker ammonium persulfate at various dosages. The spontaneous imbibition test on the broken fluid showed a significant increase in oil recovery as compared to the control sample. The results showed that the novel multifunctional fracturing fluid can be used as a traditional friction reducer at low dosages with over 70% friction reduction; while at high dosages, the fracturing fluid exhibits superior proppant carrying capability due to the formation of three-dimensional structures facilitated by hydrophobic association. Additionally, the multifunctional fracturing fluid can be easily broken by traditional peroxide breaker to release the oil displacement surfactant to enhance oil recovery as demonstrated by the spontaneous imbibition test. The presented multifunctional fluid can reduce the number of additives needed in the field and its enhanced proppant transport capability can result in less freshwater usage and less environmental impact.
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Mayer, A., J. Czerwinski y M. Kasper. "Nanosize Metal Oxide Particle Emissions From Diesel- and Petrol-Engines". En ASME 2011 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/icef2011-60045.

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All internal combustion piston engines emit nanoparticles. Part of them are soot particles as a results of incomplete combustion of fuels, or lube oil. Another part are metal particles, most probably oxides, commonly called ash. A major source of metal particles is engine wear and corrosion. The lube oil reentraines these abraded particles into the combustion zone. There they are partially vaporized and ultrafine oxide particles formed through nucleation [1]. Other sources are metallic additives to the lube oil, or the fuel, and debris from the catalytic coatings in the exhaust-gas after-treatment. The formation process results in extremely fine particles, typically smaller than 50 nm. Thus they can intrude through the alveolar membranes directly into the human organism and can even penetrate the cell nucleus [5]. The consequent health risk necessitates a careful investigation of these emissions and effective curtailment. Substantial information is available on Diesel engine particulate emissions, [2, 3, 4] but there are almost no results for SI engines reported. Beside an example of metal oxide particles from a Diesel engine, [2], the present paper shows some preliminary results of particle mass and nanoparticle emissions of SI engines. Four SI engines were investigated: two older and two newer engines, comprising two car engines and two motorbikes. The tests were done on standard transient driving cycles, and steady-state at constant 50 km/h and idling because prior to this study high concentrations of ash were observed with Diesels during idling, [2]. All tests were done with particle samples collected from the CVS tunnel, during long operating periods, to have sufficient material for analyzing. At the steady-state points, the particle size spectra were measured and based on this the source as “ash” postulated. The results show that the older engines emit high concentrations of both soot and ash particles. The size distribution is bimodal for soot and ash particles. The newer engines’ emission results are less uniform and the concentrations are lower, as expected. Altogether, the concentrations of these ash particles in the exhaust gas of Diesel and SI-engines can be so high, that more detailed investigations are requiredy.
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Lin, Genyao, Jiangshui Huang, Bryant Richardi, Stephanie Yu, Jianshen Li, Fuchen Liu y Lijun Lin. "New Generation Fracturing Fluid with Superior Proppant Transport and Oil Displacement Functionalities". En International Petroleum Technology Conference. IPTC, 2024. http://dx.doi.org/10.2523/iptc-23290-ms.

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Abstract Multifunctional fracturing fluid is desirable in the oil and gas industry as it can simplify hydraulic fracturing operations and reduce environmental impact. Traditional high-viscosity fluids, like borate crosslinked fluid, can effectively transport proppant to keep fractures open but can constrain fracture length and damage the proppant pack. Conversely, low-viscosity options like linear gels, can extend fracture length and facilitate secondary fractures, but have limited proppant carrying capabilities. Recent efforts have attempted to combine fracturing fluid with surfactants to achieve both hydraulic fracturing and improved oil recovery. However, these efforts require multiple additives and still lack sufficient proppant transportation. This study introduces a new generation fracturing fluid combining superior proppant transport and oil displacement functionalities, formulated with a unique polymer containing chemically bonded oil displacement surfactant. The new fracturing fluid was evaluated using a range of tests, including static proppant suspension test, rheology test, coreflood, regained conductivity and oil displacement tests. The static proppant suspension test compared the new fracturing fluid with a linear gel. The fluid's rheological properties were measured using an advanced rheometer. The spontaneous imbibition Amott test was conducted to appraise the fluid's oil displacement properties. The coreflood and regained conductivity studies were conducted at 160°F to evaluate the fluid's formation and proppant pack damage. The new generation fracturing fluid excelled in all tests studied. In the static proppant suspension test, it suspended the 20-40 mesh ceramic proppant much longer than the traditional guar-based fluid. The rheology test revealed that the 0.3wt% fluid's storage modulus G’ is higher than the loss modulus G" across the whole spectrum of frequency tested, signifying high elasticity of the fluid. The spontaneous imbibition test demonstrated the new fluid increased the relative oil recovery rate by 12.1% compared to the control polymer. The coreflood results showed an 85.7% regained permeability for the 0.4wt% new fluid. The conductivity study showed a 94.7% regained conductivity. These results demonstrate that the next generation fracturing fluid can not only offer superior proppant transport capability but also it can be easily broken down by traditional breaker and then release the oil displacement surfactant to achieve oil displacement functionality. These features make the new fracturing fluid an excellent choice for hydraulic fracturing applications with less freshwater usage and reduced environmental impact.
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Kappanna, Hemanth, Marc C. Besch, Daniel K. Carder, Mridul Gautam, Adewale Oshinuga y Matt Miyasato. "Development of an Advanced Retrofit Aftertreatment System Targeting Toxic Air Contaminants and Particulate Matter Emissions From HD-CNG Engines". En ASME 2010 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/icef2010-35131.

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Increasing urban pollution levels have led to the imposition of evermore stringent emissions regulations on heavy-duty engines used in transit buses. This has made compressed natural gas (CNG) a promising fuel for reducing emissions, particularly particulate matter (PM) from heavy-duty transit buses. Indeed, research studies performed at West Virginia University (WVU) and elsewhere have shown that pre-2010 compliant natural gas engines emit an order of magnitude lower PM emissions, on a mass basis, when compared to diesel engines without any exhaust aftertreatment devices. However, on a number basis, particle emissions in the nanoparticulate range were an order of magnitude higher for natural gas fueled buses than their diesel counterparts. There exists a significant number of pre-2007 CNG powered buses in transit agencies in the US and elsewhere in the world. Therefore, an exhaust aftertreatment device was designed and developed by WVU, in association with Lubrizol, to retrofit urban transit buses powered by MY2000 Cummins Westport C8.3G+ heavy-duty CNG engines, and effectively reduce Toxic Air Contaminants (TAC) and PM (mass and number count) exhaust emissions. The speciation results showed that the new exhaust aftertreatment device reduced emissions of metallic elements such as iron, zinc, nonmetallic minerals such as calcium, phosphorus and sulfur derived from lube oil additives to non-detectable levels, which otherwise could contribute to an increase in number count of nanoparticles. The carbonyl compounds were reduced effectively by the oxidation catalyst to levels below what were found in the dilution air. Also, hydrocarbons identified as TAC’s by California Air Resource Board (CARB) [1] were reduced to non-detectable levels. This ultimately reduced the number of nanoparticles to levels equal to that found in the dilution air.
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