Relevant bibliographies by topics / Liquid oxygen and methane

Academic literature on the topic 'Liquid oxygen and methane'

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Published: 7 July 2024
Last updated: 7 July 2024

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Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Journal articles on the topic "Liquid oxygen and methane":

1

Oh, Choeulwoo, and Hyung-Suk Oh. "Confined Oxygen Promotes Radical Generation for Methane Oxidation Toward Liquid Oxygenates." ECS Meeting Abstracts MA2022-02, no. 49 (October 9, 2022): 1915. http://dx.doi.org/10.1149/ma2022-02491915mtgabs.

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The activation of methane (CH4) gas to produce value-added liquid hydrocarbons has been a challenging issue in catalytic research. Electrochemical oxidation is one of the alternative methods to oxidize methane and can be usually performed at ambient temperature, which can solve the problems of methane steam reforming caused by high temperature. However, electrochemical direct methane oxidation still have limitations that it should competes with oxygen evolution reaction, resulting in low efficiency. Also, oxygenates generated from methane oxidation can be easily overoxidized to carbon dioxide which is not appropriate product for the purpose of electrochemical system to make liquid hydrocarbons , suggesting solution to transport problem in the industry. Therefore, we suggest new system to convert methane into liquid products via oxygen reduction reaction using cathode. Recently in some papers, oxygen is used as an oxidant in photocatalytic system to oxidize methane into liquid hydrocarbons. Herein, hydrogen peroxide (H2O2) generated from oxygen reduction reaction can produce hydroxyl radical, superoxide radical, and hydroperoxide radical with strong activity to break first C-H bond from CH4. By combining methyl radical activated from methane and radicals generated from H2O2, we could make formic acid with high selectivity. Through the reduction reaction on cathode and oxidation reaction by radicals, intermediate products, such as methanol and methyl hydroperoxide, were finally converted into formic acid. Furthermore, overoxidation, one of important limitation in direct methane oxidation, can be prevented by using cathode where reduction reaction occurs on electrode. In this work, we synthesized metal organic framework (MOF)-derived cobalt single atom using ZIF-67. The cobalt single atom has high faradaic efficiency (FE) in acidic media with low onset potential, which is over 80% at 0.5 V (vs RHE). To efficiently utilize H2O2 produced by oxygen reduction reaction, additional hydrophobic layer was introduced with gas diffusion electrode (GDE) by coating poly tetra fluoro ethylene (PTFE) on catalyst layer. Additional PTFE layer on GDE confined H2O2 and CH4 together, offering higher possibilities to be reacted. In addition, liquid oxygenates generated from the reaction have hydrophilic properties that prevents further reactions by reducing the diffusion of liquid products toward cathode due to hydrophobic layer. By applying new system into flow cell, the low solubility of methane in the electrolyte can be alleviated to achieve high production rate. At last, This new system using oxygen reduction reaction to oxidize methane can make a new pathway for many chemical reaction area in the point that the system can be applied in any industrial reactions where H2O2 included. Figure 1
2

Urzica, Daniela, and Eva Gutheil. "Structures of Laminar Methane/Nitrogen/Oxygen, Methane/Oxygen and Methane/Liquid Oxygen Counterflow Flames for Cryogenic Conditions and Elevated Pressures." Zeitschrift für Physikalische Chemie 223, no. 4-5 (May 2009): 651–67. http://dx.doi.org/10.1524/zpch.2009.6050.

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3

Ricci, Daniele, Francesco Battista, and Manrico Fragiacomo. "Transcritical Behavior of Methane in the Cooling Jacket of a Liquid-Oxygen/Liquid-Methane Rocket-Engine Demonstrator." Energies 15, no. 12 (June 7, 2022): 4190. http://dx.doi.org/10.3390/en15124190.

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The successful design of a liquid rocket engine is strictly linked to the development of efficient cooling systems, able to dissipate huge thermal loads coming from the combustion in the thrust chamber. Generally, cooling architectures are based on regenerative strategies, adopting fuels as coolants; and on cooling jackets, including several narrow axial channels allocated around the thrust chambers. Moreover, since cryogenic fuels are used, as in the case of oxygen/methane-based liquid rocket engines, the refrigerant is injected in liquid phase at supercritical pressure conditions and heated by the thermal load coming from the combustion chamber, which tends to experience transcritical conditions until behaving as a supercritical vapor before exiting the cooling jacket. The comprehension of fluid behavior inside the cooling jackets of liquid-oxygen/methane rocket engines as a function of different operative conditions represents not only a current topic but a critical issue for the development of future propulsion systems. Hence, the current manuscript discusses the results concerning the cooling jacket equipping the liquid-oxygen/liquid-methane demonstrator, designed and manufactured within the scope of HYPROB-NEW Italian Project. In particular, numerical results considering the nominal operating conditions and the influence of variables, such as the inlet temperature and pressure values of refrigerant as well as mass-flow rate, are shown to discuss the fluid transcritical behavior inside the cooling channels and give indications on the numerical methodologies, supporting the design of liquid-oxygen/liquid-methane rocket-engine cooling systems. Validation has been accomplished by means of experimental results obtained through a specific test article, provided with a cooling channel, characterized by dimensions representative of HYPROB DEMO-0A regenerative combustion chamber.
4

Xu, Zhen Chao, and Eun Duck Park. "Gas-Phase Selective Oxidation of Methane into Methane Oxygenates." Catalysts 12, no. 3 (March 9, 2022): 314. http://dx.doi.org/10.3390/catal12030314.

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Methane is an abundant resource and its direct conversion into value-added chemicals has been an attractive subject for its efficient utilization. This method can be more efficient than the present energy-intensive indirect conversion of methane via syngas, a mixture of CO and H2. Among the various approaches for direct methane conversion, the selective oxidation of methane into methane oxygenates (e.g., methanol and formaldehyde) is particularly promising because it can proceed at low temperatures. Nevertheless, due to low product yields this method is challenging. Compared with the liquid-phase partial oxidation of methane, which frequently demands for strong oxidizing agents in protic solvents, gas-phase selective methane oxidation has some merits, such as the possibility of using oxygen as an oxidant and the ease of scale-up owing to the use of heterogeneous catalysts. Herein, we summarize recent advances in the gas-phase partial oxidation of methane into methane oxygenates, focusing mainly on its conversion into formaldehyde and methanol.
5

Mariyana, Rina, Min-Sik Kim, Chae Lim, Tae Kim, Si Park, Byung-Keun Oh, Jinwon Lee, and Jeong-Geol Na. "Mass Transfer Performance of a String Film Reactor: A Bioreactor Design for Aerobic Methane Bioconversion." Catalysts 8, no. 11 (October 24, 2018): 490. http://dx.doi.org/10.3390/catal8110490.

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The mass transfer performance of a string film reactor (SFR)—a bioreactor design for the aerobic bioconversion of methane—was investigated. The results showed that the SFR could achieve high mass transfer performance of gases, and the highest values of the mass transfer coefficients for oxygen and methane were 877.1 h−1 and 408.0 h−1, respectively. There were similar mass transfer coefficients for oxygen and methane in absorption experiments using air, methane, and air–methane mixed gas under the same liquid flow rate conditions, implying that each gas is delivered into the liquid without mutual interaction. The mass transfer performance of the SFR was significantly influenced by the liquid flow rate and the hydrophilicity of the string material, whereas the magnitude of the gas flow rate effect on the mass transfer performance depended on both the tested liquid flow rate and the gas flow rate. Furthermore, the mass transfer performance of the SFR was compared with those of other types of bioreactors.
6

Thu, Vu Phuong. "COMBINATION OF METHANE OXIDATION AND DENITRIFICATION PROCESS IN A TWO-STAGE BIOREACTOR." Vietnam Journal of Science and Technology 54, no. 4B (March 22, 2018): 27. http://dx.doi.org/10.15625/2525-2518/54/4b/12020.

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The importance of a combination of methane oxidation and denitrification processes in a two-stage bioreactor was investigated for the removal of nitrate using methane gas. In the configuration I, methane and oxygen were supplied separately to two columns of the two-stage bioreactor, an oxic column and an anoxic column. The nitrate removal efficiency was around 25 % and nitrite presented in the liquid medium, showing that the denitrification process was not complete. In the configuration II, methane and oxygen were supplied together to one column of the two-stage bioreactor, better results were achieved. Nitrate removal efficiency increased to almost 100 %, no nitrite was found in the liquid medium. The methane oxidation and the denitrification processes seemed to be happened simultaneously in one column of the two-stage bioreactor and demonstrated its advantages. Methane utilized concentration in the medium of the methane oxidation column increased from 1 to 2.1 mg/L, which resulted in more soluble organic carbon was created and supplied for denitrifiers. The C/N utilized ratio was lower in the Configuration II showing that the aerobic methane oxidation coupled to denitrification (AMO-D) achieved higher efficiency when methane and oxygen were supplied together.
7

Haranguş, Victoria, Gabriel Vasilescu, Adela Todoruţ, and Teodor Hepuţ. "Analysis of Hazards Identified within the Premises of the Electric Steelworks, to Carry out the Risk Assessment." Solid State Phenomena 216 (August 2014): 97–102. http://dx.doi.org/10.4028/www.scientific.net/ssp.216.97.

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In steelmaking and casting, there are used, stored and handled chemicals which are risk factors either in the normal operation of the technical plants, or in predictable and unpredictable failure conditions. In the steelmaking and casting plants, the substances and liquids considered risk factors are: methane, oxygen, liquid steel and water used for the cooling system. This paper deals with the risk assessment within the premises of electric steelworks, in predictable failure situations, based on the sheets of assessment and reduction of the risk associated with explosive atmospheres of methane and oxygen, in the presence of high temperatures existing at the electric steelworks.
8

Kočí, Kamila, Lucie Obalová, Daniela Plachá, and Zdenek Lacný. "Effect of Temperature, Pressure and Volume of Reacting Phase on Photocatalytic CO2 Reduction on Suspended Nanocrystalline TiO2." Collection of Czechoslovak Chemical Communications 73, no. 8-9 (2008): 1192–204. http://dx.doi.org/10.1135/cccc20081192.

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The effect of temperature, pressure and volume of reactant solution on the photocatalytic reduction of CO2 at suspended TiO2 was studied in an annular batch photoreactor. Reaction products in the liquid phase (methanol, formaldehyde) and in the gas phase (methane, ethane, carbon monoxide, molecular oxygen and hydrogen) were analysed by gas chromatography. The photocatalytic reduction of CO2 was not sensitive significantly to small temperature variations within 10 K. The CO2 pressure at carbonation of the solution influenced the selectivity of the CO2 conversion to methane and methanol, while the dihydrogen yield was higher by two orders of magnitude and independent of the pressure. The dependence of the product yields on the volume of the liquid phase confirmed the fact that the requirement for perfect mixing was difficult to fulfil for the annular configuration of the reactor.
9

Stevenson, James, Jonathan Lunine, and Paulette Clancy. "Membrane alternatives in worlds without oxygen: Creation of an azotosome." Science Advances 1, no. 1 (February 2015): e1400067. http://dx.doi.org/10.1126/sciadv.1400067.

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The lipid bilayer membrane, which is the foundation of life on Earth, is not viable outside of biology based on liquid water. This fact has caused astronomers who seek conditions suitable for life to search for exoplanets within the “habitable zone,” the narrow band in which liquid water can exist. However, can cell membranes be created and function at temperatures far below those at which water is a liquid? We take a step toward answering this question by proposing a new type of membrane, composed of small organic nitrogen compounds, that is capable of forming and functioning in liquid methane at cryogenic temperatures. Using molecular simulations, we demonstrate that these membranes in cryogenic solvent have an elasticity equal to that of lipid bilayers in water at room temperature. As a proof of concept, we also demonstrate that stable cryogenic membranes could arise from compounds observed in the atmosphere of Saturn’s moon, Titan, known for the existence of seas of liquid methane on its surface.
10

Kang, Jongkyu, and Eun Duck Park. "Selective Oxidation of Methane over Fe-Zeolites by In Situ Generated H2O2." Catalysts 10, no. 3 (March 5, 2020): 299. http://dx.doi.org/10.3390/catal10030299.

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Liquid-phase selective oxidation of methane into methane oxygenates, including methanol and formic acid, with molecular oxygen was investigated using Fe-zeolites and Pd/activated carbon in the presence of molecular hydrogen as a reducing agent. Various Fe-zeolites such as Fe-ZSM-5, Fe-mordenite, Fe-β, Fe-Y, and Fe-ferrierite were prepared by ion-exchange and compared for this reaction. Among them, Fe-ZSM-5 was selected for further study because this catalyst showed high activity in the selective oxidation of methane with relatively less leaching. Further, the effect of reaction temperature, pH, and the amount of catalyst was examined, and detailed investigations revealed that the leached Fe species, which were facilitated in the presence of acid, were mainly responsible for methane oxidation under the given reaction conditions.
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Journal articles Dissertations / Theses Books

Dissertations / Theses on the topic "Liquid oxygen and methane":

1

Lechner, Valentin. "Experimental study of LOX/CH4 flames in rocket engines." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPAST040.

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Utiliser le méthane comme carburant dans les moteurs fusées présente beaucoup d'avantages mais la combustion avec de l'oxygène pur à haute pression reste mal comprise. D'un point de vue thermodynamique, le méthane et l'oxygène partagent des valeurs de point critique très similaires, ce qui rend difficile la prédiction du mélange des ergols, l'accrochage, la stabilité et la structure de la flamme. De plus, quand le méthane est injecté en excès, des aérosols peuvent être produits, pouvant obstruer les lignes, endommager la turbine et réduire le rendement.Une mise à jour approfondie des connaissances sur la combustion LOX/CH4 est donc nécessaire. Ce défi est relevé au sein du consortium composé du laboratoire EM2C, de l'ONERA, du CNES et d'ArianeGroup. Deux campagnes d'essais sont menées sur le banc MASCOTTE de l'ONERA visant à étudier trois sujets centraux : la structure de la flamme, les transferts thermiques aux parois et la production d'aérosols. Dans ce but, divers diagnostics expérimentaux sont mis en œuvre simultanément pendant des essais à feu à haute pression.Différents diagnostics d'imagerie sont mis en place pour analyser la structure de la flamme et des jets liquides. Malgré les difficultés d'acquisition rencontrées dans ces conditions extrêmes, les analyses révèlent une structure de flamme complexe. En régime subcritique, les mécanismes d'atomisation et d'évaporation dominent. La flamme est alors bien plus ouverte et plus longue qu'à de plus hautes pressions, où les mécanismes de mélange diffusifs prévalent. Caractériser l'accrochage de la flamme reste un défi. En effet, un anneau de glace, probablement d'eau, entoure et masque le pied de la flamme. Des mécanismes de formation sont proposés et un cycle temporel de croissance/destruction est mis en avant. Sa présence affecte fortement la visualisation de la flamme, et peut conduire à des interprétations erronées de sa topologie.Pour la première fois à MASCOTTE, la phosphorescence induite par laser (LIP) est mise en place. Diverses méthodes LIP existent mais ne sont pas bien adaptées aux conditions de MASCOTTE : large gamme de températures, transitoires thermiques et environnement diphasique. C'est pourquoi une méthode spécifique a été mise au point (Full Spectrum Fitting method). Elle exploite la dépendance spectrale à la température, permettant des mesures instantanées de 100 à 900 K avec une précision de 17 K, sans dépendance à l'énergie d'excitation laser. Une analyse détaillée des données met en évidence les modes de transfert de chaleur prédominants, étudie l'influence des points de fonctionnement et compare les données expérimentales avec un modèle de transferts thermiques de paroi, particulièrement bien adapté pour déduire les caractéristiques convectives de l'écoulement à la paroi.Différents diagnostics sont mis en œuvre pour caractériser les aérosols. Une sonde intrusive prélève les particules et les gaz brûlés en aval de la flamme. Les particules sont prélevées sur des grilles adaptées à des analyses par microscopie électronique à transmission (TEM). Les images détaillées de leurs morphologies révèlent qu'il s'agit de suies. Les gaz sont analysés par chromatographie en phase gazeuse. Ceci permet d'identifier des molécules précurseurs des suies comme le benzène et l'acétylène. Les suies sont quantifiées temporellement par extinction laser. Des post-traitements dédiés sont développés et diverses hypothèses sont discutées pour expliquer les variations spatiales de production de suies
Using methane as a fuel in rocket engines would have many advantages but the combustion with pure oxygen at high pressure remains poorly understood. From a thermodynamic point of view, methane and oxygen share very similar critical point values, making it challenging to predict propellant mixing, flame anchoring, stability and structure. Moreover, when methane is injected in excess, aerosols can be produced, which can clog the lines, damage the turbine, and reduce the efficiency.Therefore, a thorough update of the knowledge of LOX/CH4 combustion is necessary. These challenges are tackled within the consortium composed of EM2C laboratory, ONERA, CNES, and ArianeGroup. Two test campaigns are carried out at the MASCOTTE facility from ONERA, aiming to study three central topics: the flame structure, wall heat transfers, and aerosol production. To this end, various experimental diagnostics are implemented simultaneously during high-pressure hot-fire tests.Various imaging diagnostics are implemented to analyze the flame structure and the dense liquid jets. Despite the acquisition difficulties encountered in these extreme conditions, the analyses reveal a complex flame structure. In the subcritical regime, atomization and evaporation mechanisms dominate. The flame is much more opened and longer than at higher pressures, where diffusive mixing mechanisms prevail. Characterizing flame anchoring remains a challenge. A water ice ring surrounding, and masking, the flame foot has been identified. Formation mechanisms are proposed, and a growth/destruction temporal cycle is highlighted. Its presence strongly affects flame visualizations, and may lead to misinterpretations of its topology.Laser-induced phosphorescence (LIP) is implemented for the first time at MASCOTTE. Various LIP methods exist, but they are not well suited to the MASCOTTE conditions: wide temperature range, thermal transients, and two-phase flow environment favoring laser absorption/diffusion. Therefore, a specific method, the Full Spectrum Fitting method (FSF method), has been developed. It exploits the spectral dependence on temperature, enabling instantaneous measurements from 100 to 900 K with a precision of 17 K, with no dependence on the laser excitation energy. A detailed data analysis highlights the predominant wall heat transfer modes, studies the influence of the operating points, and compares the experimental data with a wall heat transfer model, which is particularly well suited for deducing the convective properties of the flow.Three diagnostics are used to characterize aerosols. An intrusive probe samples particles and burnt gases downstream of the flame. The particles are sampled on TEM grids and analyzed by Transmission Electron Microscopy. Detailed images of the aerosol morphology reveal that the particles are soot. Combustion products are analyzed by gas chromatography. This makes it possible to identify soot precursor molecules such as benzene and acetylene. Soot are quantified temporally by laser extinction. A dedicated post-processing method is developed and various hypotheses are discussed to explain the spatial variations of the soot production downstream of the flame
2

Hartwig, Jason W. "Liquid Acquisition Devices for Advanced In-Space Cryogenic Propulsion Systems." Case Western Reserve University School of Graduate Studies / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=case1396562473.

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3

Salusbury, Sean. "Premixed methane stagnation flames with oxygen enrichment." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=87008.

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Chemical kinetics is the science of modeling the steps involved in a chemical reaction at the molecular level. This investigation is concerned with the chemical reactions that occur during combustion. There is ample room for improvement in most presently accepted chemical kinetic models and many reactions are still not modeled. The key to creating and improving chemical kinetic models of combustion reactions is gathering sufficient experimental data and solidifying the foundations upon which more complicated models may be built.
The experimental apparatus that is used to gather data in this study is a stagnation flame burner. Particle image velocimetry, a laser-based flow visualization technique, is used to measure velocity in both the axial and radial directions. The results are analyzed first to confirm the validity of the one-dimensional, axisymmetric model commonly used to describe impinging-jet flow. Experimental results are found to have good agreement with theoretical approximations and numerical models. Tests are then conducted to reproduce previously published data for methane-air flames at lean, stoichiometric and rich conditions in order to prove the reliability of the experimental apparatus. There is agreement between published data and the new experimental results.
Experiments with oxygen enrichment are then conducted at equivalence ratios not normally within the flammability limits of methane-air mixtures, from the very lean, phi = 0.55, to the very rich, phi = 1.45. Results show marked disagreement between model and experiment at equivalence ratios far from stoichiometric. These experimental data will allow the chemical kinetic model for premixed methane combustion to be improved -- by correcting divergence in the model at very lean and very rich conditions, the model should be improved appreciably over the narrower range of equivalence ratios typically seen in methane-air combustion.
La cinétique chimique est la science de la modélisation des étapes d'une réaction chimique au niveau moléculaire. Ce mémoire s'interesse aux réactions chimique qui se produisent durant la combustion. Les modèles cinétique présentement acceptés sont en besoin d'amélioration et d'autres enplus, il existe plusieurs réactions qui n'ont aucun modèle. Pour mieux développer les modèles et pour en créer des nouveaux, il fault rassembler assez de données expérimentales pour produire une base solide sur laquelle des modèles de plus en plus compliqués peuvent etre construits.
Pour générer des données, cette étude utilise un appareil expérimental avec une géométrie de point d'arrêt, dans laquelle une flamme aplatie peut exister. Les vitesses dans la direction axiale et radiale sont mesurées par la vélocimétire image-particule, une technique à base de laser. Les résultats sont d'abord analisés pour vérifier que le modèle unidimensionnel est valide. Une bonne concordance est observée entre la théorie et les résultats et entre les modèles numériques et les résultats. Subséquemment, des expériences sont effectuées pour reproduire des données déjà publiées pour le méthane et l'air aux rapports d'équivalence oxydants, stoechiométriques et réducteurs, afin de prouver la fiabilité de l'appareil expérimental. Il ya une bonne concordance entre les données publiées et les résultats expérimentaux.
Des expériences dans lequelles l'air est enrichi avec de l'oxygène sont effectuées à des rapports d'équivalence de phi = 0.55 juste qu'à phi = 1.45; ces rapports d'équivalence ne sont normalement pas dans les limites d'inflammabilité des mélanges de méthane-air. Ici, les résultats montrent un désaccord marqué entre le modèle et les expériences pour les rapports d'équivalence très loin de phi = 1.0. Les données permettent le modèle cinétique chimique pour la combustion du méthane prémélangée d'être amélioré. En corrigeant les divergences entre le modèle et les resultats experimentales pour rapports d'équivalence très oxydants et très réducteurs, le modèle sera amélioré pour rapports d'équivalences généralement vus dans la combusiton de méthane dans l'air.
4

Williams, Gareth Richard. "Liquid phase catalytic partial oxidation of methane." Thesis, University of Bath, 2002. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.760824.

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5

Pedersen, Tom. "A study of liquid film, liquid motion, and oxygen absorption from hemispherical air/oxygen bubbles." Thesis, Brunel University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242980.

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6

Wishnow, Edward Hyman. "Far-infrared absorption by liquid nitrogen and liquid oxygen." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25072.

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This thesis examines the collision induced, far-infrared absorption of homonuclear diatomic molecules. These molecular processes are relevant in the astrophysical environments of planetary atmospheres and galactic molecular clouds, and a brief survey of far-infrared measurements of these regions is presented. The theory of collision induced absorption by molecular rotational transitions is reviewed and a calculation is made of the quadrupolar induced, single rotational transition absorption line intensities of the nitrogen and oxygen molecules. The far-infrared absorption spectra of liquid nitrogen and liquid oxygen at 77K, over the frequency range 5 to 70 cm⁻¹ , have been measured. The far-infrared spectrum of liquid oxygen has not previously been reported. The present work includes the design of a low temperature, multiple pass, far-infrared absorption cell intended for low temperature, low density gas measurements. The effect of diffraction on the cell's maximum attainable optical path length, and a model used to estimate the anticipated liquid helium consumption are discussed.
Science, Faculty of
Physics and Astronomy, Department of
Graduate
7

Teeple, Brian S. (Brian Scott). "Feasibility of producing lunar liquid oxygen." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/47360.

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Lee, Colleen Su-Ming. "Reactions of oxygen with methane using microwave and conventional heating." Thesis, Imperial College London, 2000. http://hdl.handle.net/10044/1/8073.

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9

Rivera-Rivera, Ramiro Luis. "Simulation and validation of liquid oxygen and liquid hydrogen pressurization systems." Thesis, Available online, Georgia Institute of Technology, 2004:, 2003. http://etd.gatech.edu/theses/available/etd-04072004-180151/unrestricted/rivera-rivera%5Framiro%5Fl%5F200312%5Fms.pdf.

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10

Agarwal, Nishtha. "Low temperature selective oxidation of methane using hydrogen peroxide and oxygen." Thesis, Cardiff University, 2018. http://orca.cf.ac.uk/117851/.

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The selective oxidation of methane, which is the primary component of natural gas, isone of the most important challenges in catalysis. While the search for catalysts capable of converting methane to higher value commodity chemicals and liquid fuels such as methanol has been ongoing for over a century, an industrially viable process has not yet been developed. Currently, large scale upgradation of natural gas proceeds indirectly employing high temperature conversion to syngas which is then processed to synthesise fuels and chemicals. Different catalysts are currently being studied for direct low temperature selective oxidation of methane to liquid oxygenates primarily methanol. One of the systems studied is based on gold-palladium supported nanoparticles using hydrogen peroxide. Though the catalyst was shown to be active, high wastage of hydrogen peroxide was observed along with low productivities. The work in this thesis shows the removal of support can be used to increase the activity and efficiency of the reaction. By tuning the amount of hydrogen peroxide, high productivities and selectivities were observed. Further optimisation of catalyst preparation and methane oxidation were also performed. A theoretical study based on density functional theory into interactions between metal particles, such as gold and palladium and substrates such as oxygen, hydrogen and water was also carried out to identify the active sites and reaction mechanism underway with hydrogen peroxide and these metal particles.
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Books on the topic "Liquid oxygen and methane":

1

J, Nowobilski J., and Lewis Research Center, eds. Airborne rotary air separator study: Final report. Tonawanda, NY: Praxair, Inc., 1992.

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Moore, Steve. Liquid oxygen. Newcastle upon Tyne: Echo Room Press, 1998.

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Law, Susan. Liquid oxygen therapy at home. Montréal, QC: Agence d'évaluation des technologies et des modes d'intervention en santé, 2005.

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Zuckerwar, Allan J. Sound speed measurements in liquid oxygen-liquid nitrogen mixtures. [Washington, D.C.]: National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1985.

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A, Santavicca Domenic, and United States. National Aeronautics and Space Administration., eds. Laser induced spark ignition of methane-oxygen mixtures. [Washington, D.C.?: National Aeronautics and Space Administration, 1991.

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Shapiro, Wilbur. Sealing technology for liquid oxygen (LOX) turbopumps. [Washington, DC: National Aeronautics and Space Administration, 1988.

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E, Edwards, ed. Composition of the vapour and liquid phases of the system methane nitrogen. [Toronto]: University library, pub. by the Librarian, 1996.

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Armstrong, Elizabeth S. Cooling of rocket thrust chambers with liquid oxygen. [Washington, D.C.]: NASA, 1990.

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Zuckerwar, Allan J. Contamination of liquid oxygen by pressurized gaseous nitrogen. [Washington, D.C.]: National Aeronautics and Space Administration, Office of Management, Scientific and Tachnical Information Division, 1989.

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Armstrong, Elizabeth S. Cooling of rocket thrust chambers with liquid oxygen. [Washington, D.C.]: NASA, 1990.

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Book chapters on the topic "Liquid oxygen and methane":

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Winkelmann, J. "Diffusion of methane (1); oxygen (2)." In Gases in Gases, Liquids and their Mixtures, 815. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-49718-9_533.

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Winkelmann, J. "Diffusion of methane (1); oxygen (2)." In Gases in Gases, Liquids and their Mixtures, 228. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-49718-9_76.

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Winkelmann, J. "Diffusion of oxygen (1); tetrachloro-methane (2)." In Gases in Gases, Liquids and their Mixtures, 2087. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-49718-9_1604.

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Feng, Lei, Wen Chen, Jingrun Wang, Wen Xie, Qingxin Cui, Jingying Bai, and Cheng’an Wan. "Research on Space Regenerative Fuel Cell System and Comprehensive Energy Utilization Technology." In Proceedings of the 10th Hydrogen Technology Convention, Volume 1, 334–43. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-8631-6_32.

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Abstract:
AbstractThis paper introduces the application demands and research progress of fuel cells in the space field. Subsequently, an analysis of the comprehensive energy utilization modes of fuel cells from the aspects of water, gas, and heat is conducted. The fuel evaporated from the liquid hydrogen and liquid oxygen tanks of spacecraft can be used for fuel cell power generation, and the heat generated by fuel cells, together with the low-absorption and low-emissivity thermal control coatings, maintains the temperature of the spacecraft in the shadow area. The product water from fuel cells can be purified for reuse in thermal control, environmental control, and water electrolysis cells. The hydrogen and oxygen produced by electrolyzing water can be recycled for fuel cell power generation, and the oxygen can also be used for environmental control and life support, while the hydrogen can be used for methane production. To reduce system weight and achieve comprehensive utilization of energy and resources, integrated system design and research on regenerative fuel cell system principles are carried out. Finally, through the analysis of prototype performance parameters, the design scheme demonstrates the feasibility of energy and resource recycling.
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Winkelmann, J. "Diffusion of dichloro-difluoro-methane (1); oxygen (2)." In Gases in Gases, Liquids and their Mixtures, 762. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-49718-9_486.

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Winkelmann, J. "Diffusion of chloro-difluoro-methane (1); oxygen (2)." In Gases in Gases, Liquids and their Mixtures, 780. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-49718-9_502.

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Song, Hui. "Direct Photocatalytic Oxidation of Methane to Liquid Oxygenates with Molecular Oxygen over Nanometals/ZnO Catalysts." In Solar-Energy-Mediated Methane Conversion Over Nanometal and Semiconductor Catalysts, 93–117. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-33-4157-9_5.

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Campbell, K. D., H. Zhang, and J. H. Lunsford. "Methane Activation Over Lanthanide Oxides." In Oxygen Complexes and Oxygen Activation by Transition Metals, 308. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-0955-0_23.

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Lunsford, J. H. "Methane Oxidation at Metal Oxide Surfaces." In Oxygen Complexes and Oxygen Activation by Transition Metals, 265–72. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-0955-0_19.

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Winkelmann, J. "Diffusion of oxygen (1); water (2); methanol (3)." In Gases in Gases, Liquids and their Mixtures, 2253. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-49718-9_1743.

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Conference papers on the topic "Liquid oxygen and methane":

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DeLong, Dan, Jeff Greason, and Khaki Rodway McKee. "Liquid Oxygen/Liquid Methane Rocket Engine Development." In Aerospace Technology Conference and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2007. http://dx.doi.org/10.4271/2007-01-3876.

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Nilsen, Christopher, Scott Meyer, and Silas Meriam. "Purdue Liquid Oxygen - Liquid Methane Sounding Rocket." In AIAA Scitech 2019 Forum. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2019. http://dx.doi.org/10.2514/6.2019-0614.

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Flynn, Howard, Brian Lusby, and Mark Villemarette. "Liquid Oxygen/Liquid Methane Integrated Propulsion System Test Bed." In 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2011. http://dx.doi.org/10.2514/6.2011-5842.

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Bostwick, Christopher, Tristan Gibbs, and Eric Besnard. "Liquid Oxygen / Liquid Methane Co-Axial Swirl Injector Development." In 46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2010. http://dx.doi.org/10.2514/6.2010-6666.

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Truong, Colby, Ethan Sichler, Andre H. Lam, Richard Picard, and Frank O. Chandler. "Development of a Liquid Oxygen / Liquid Methane Rocket Engine Injector." In 2018 Joint Propulsion Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2018. http://dx.doi.org/10.2514/6.2018-4762.

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Marshall, William, Sibtosh Pal, Roger Woodward, and Robert Santoro. "Combustion Instability Studies Using Gaseous Methane and Liquid Oxygen." In 42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2006. http://dx.doi.org/10.2514/6.2006-4526.

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Herrera, Manuel, Mariana Chaidez, Zachary Welsh, Jason Adams, Luz I. Bugarin, Jack Chessa, and Ahsan R. Choudhuri. "Design and Testing of a 500 lbf Liquid Oxygen/Liquid Methane Engine." In AIAA Propulsion and Energy 2019 Forum. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2019. http://dx.doi.org/10.2514/6.2019-3937.

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Herrera, Manuel, Marissa B. Garcia, Jason Adams, Ahsan R. Choudhuri, and Jack Chessa. "Design and Development of a 500 lbf Liquid Oxygen/Liquid Methane Engine." In 2018 Joint Propulsion Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2018. http://dx.doi.org/10.2514/6.2018-4605.

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Trinh, Huu. "Liquid methane/oxygen injector study for potential future Mars ascent." In 36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2000. http://dx.doi.org/10.2514/6.2000-3119.

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Müller, H., and M. Pfitzner. "Large-eddy simulation of transcritical liquid oxygen/methane jet flames." In Progress in Propulsion Physics – Volume 11. Les Ulis, France: EDP Sciences, 2019. http://dx.doi.org/10.1051/eucass/201911177.

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Abstract:
A numerical method to perform large-eddy simulations (LES) of nonpremixed liquid oxygen/methane (LOx/CH4) combustion at supercritical pressures is presented and the computational results are compared with available experimental data. The injection conditions of the considered test case resemble those in typical liquid-propellant rocket engines (LRE). Thermodynamic nonidealities are modeled using the Peng–Robinson (PR) equation of state (EoS) in conjunction with a novel volume-translation method to correct deficiencies in the transcritical regime. The resulting formulation is more accurate than the standard cubic EoS's without deteriorating their good computational efficiency. The real-gas thermodynamics model is coupled with the steady laminar flamelet model (SLFM) for turbulent nonpremixed combustion to incorporate chemical reactions at reasonable computational cost in the LES. A reduced reaction mechanism, which is validated with respect to the full mechanism, is used to generate a flamelet library. A comparison of the LES result with available OH* measurements shows that important flow features are well predicted.

Reports on the topic "Liquid oxygen and methane":

1

Egbert, Scott, Xuefang Li, Myra L. Blaylock, and Ethan Hecht. Mixing of Liquid Methane Releases. Office of Scientific and Technical Information (OSTI), December 2018. http://dx.doi.org/10.2172/1488323.

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2

Petrovic, S., A. R. Sanger, P. Komorowski, J. Leman, R. Willier, S. Thind, S. Donini, J. Galuszka, and P. Chantal. Electrochemical methane coupling in the absence of oxygen. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1994. http://dx.doi.org/10.4095/305317.

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Warren, B. K., K. D. Campbell, and J. L. Matherne. Direct conversion of methane to C sub 2 's and liquid fuels. Office of Scientific and Technical Information (OSTI), February 1990. http://dx.doi.org/10.2172/6307190.

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Warren, B. K., and K. D. Campbell. Direct conversion of methane to C sub 2 's and liquid fuels. Office of Scientific and Technical Information (OSTI), November 1989. http://dx.doi.org/10.2172/6166436.

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Warren, B. K., K. D. Campbell, J. L. Matherne, and N. E. Kinkade. Direct conversion of methane to C sub 2 's and liquid fuels. Office of Scientific and Technical Information (OSTI), March 1990. http://dx.doi.org/10.2172/6166447.

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Warren, B., K. Campbell, J. Matherne, G. Culp, and N. Kinkade. Direct conversion of methane to C sub 2 's and liquid fuels. Office of Scientific and Technical Information (OSTI), April 1990. http://dx.doi.org/10.2172/6203907.

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Mountain, R. D. Molecular dynamics study of the solubility of oxygen in liquid pyridine. Gaithersburg, MD: National Institute of Standards and Technology, 2003. http://dx.doi.org/10.6028/nist.ir.7075.

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Chein, Tsan-Heui, Jin Wei, and Yonhua Tzeng. Synthesis of Diamond in High Power-Density Microwave Methane/Hydrogen/Oxygen Plasmas at Elevated Substrate Temperatures. Fort Belvoir, VA: Defense Technical Information Center, April 1999. http://dx.doi.org/10.21236/ada362769.

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Stapelmann, Katharina. Final Report: Absolute Reactive Oxygen Species Densities in the Effluent of the COST Reference Source and Plasma-generated Atomic Oxygen Density Measurements in Liquid using TALIF. Office of Scientific and Technical Information (OSTI), February 2024. http://dx.doi.org/10.2172/2309756.

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Hamilton, D. C. Electrical conductivity and equation of state of liquid nitrogen, oxygen, benzene, and 1-butene shocked to 60 GPa. Office of Scientific and Technical Information (OSTI), October 1986. http://dx.doi.org/10.2172/7260956.

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