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Dissertations / Theses on the topic 'Methane'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Squire, Gavin Daniel. "Partial oxidation of methane to methanol and formaldehyde." Thesis, University of Reading, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278072.

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2

Chellappa, Anand S. "Methane conversion to methanol : homogeneous and catalytic studies /." free to MU campus, to others for purchase, 1997. http://wwwlib.umi.com/cr/mo/fullcit?p9842517.

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3

Matthews, Terry. "The Partial Oxidation of Methane to Methanol & Formaldehyde." TopSCHOLAR®, 1987. https://digitalcommons.wku.edu/theses/2602.

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The conversion of methane into methanol is viewed as one approach to utilizing the vast reserves of natural gas. One such prospect for the utilization of natural gas is the partial oxidation of methane to methanol. Methanol ranks high on the commodity market. As a liquid it is easily transportable and therefore skirts the issue of vast amounts of a gas having to be transported either by pipeline or by liquifying. The catalytic partial oxidation of methane to methanol is investigated. Two different reactor systems are employed. The first system is a fixed bed system. The second is a fluid bed s

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4

Afonso, Joana da Costa Franco. "Catalytic hydrogenation of carbon dioxide to form methanol and methane." Master's thesis, Faculdade de Ciências e Tecnologia, 2013. http://hdl.handle.net/10362/10854.

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5

Olsson, Susanna. "Dynamics of a spin-forbidden reaction transforming methane to methanol." Thesis, Uppsala universitet, Institutionen för kemi - BMC, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-385895.

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6

Borchardt, Lars, Winfried Nickel, Mirian Casco, et al. "Illuminating solid gas storage in confined spaces – methane hydrate formation in porous model carbons." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-221847.

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Methane hydrate nucleation and growth in porous model carbon materials illuminates the way towards the design of an optimized solid-based methane storage technology. High-pressure methane adsorption studies on pre-humidified carbons with well-defined and uniform porosity show that methane hydrate formation in confined nanospace can take place at relatively low pressures, even below 3 MPa CH4, depending on the pore size and the adsorption temperature. The methane hydrate nucleation and growth is highly promoted at temperatures below the water freezing point, due to the lower activation energy i

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7

Prince, Bruce M. "The Mechanisms of Methane C–H Activation and Oxy-insertion Via Small Transition Metal Complexes: a DFT Computational Investigation." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc500116/.

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Our country continues to demand clean renewable energy to meet the growing energy needs of our time. Thus, natural gas, which is 87% by volume of methane, has become a hot topic of discussion because it is a clean burning fuel. However, the transportation of methane is not easy because it is a gas at standard temperature and pressure. The usage of transition metals for the conversion of small organic species like methane into a liquid has been a longstanding practice in stoichiometric chemistry. Nonetheless, the current two-step process takes place at a high temperature and pressure for the co

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8

York, Andrew P. E. "Methane conversion chemistry." Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334954.

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9

Hammond, Charles Rhodri. "Partial oxidation of methane to methanol using modified mixed metal oxides." Thesis, Cardiff University, 2004. http://orca.cf.ac.uk/54537/.

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The current steam reforming process for the production of CH<sub>3</sub>OH is complicated and difficult, and therefore the direct partial oxidation of CH<sub>4</sub> to CH<sub>3</sub>OH would be economically desirable. In previous work a design approach for a selective partial oxidation catalyst has been investigated, which comprises the combination of components with a desired reactivity, producing a successful selective partial oxidation catalyst. In this approach, it is considered a successful partial oxidation catalyst must activate methane, activate oxygen and not destroy the desired prod

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10

Borchardt, Lars, Winfried Nickel, Mirian Casco, et al. "Illuminating solid gas storage in confined spaces – methane hydrate formation in porous model carbons." Royal Society of Chemistry, 2016. https://tud.qucosa.de/id/qucosa%3A30232.

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Methane hydrate nucleation and growth in porous model carbon materials illuminates the way towards the design of an optimized solid-based methane storage technology. High-pressure methane adsorption studies on pre-humidified carbons with well-defined and uniform porosity show that methane hydrate formation in confined nanospace can take place at relatively low pressures, even below 3 MPa CH4, depending on the pore size and the adsorption temperature. The methane hydrate nucleation and growth is highly promoted at temperatures below the water freezing point, due to the lower activation energy i

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11

Modibedi, Remegia Mmalewane. "The catalytic membrane reactor for the conversion of methane to methanol and formaldehyde under mild conditions." Thesis, University of the Western Cape, 2005. http://etd.uwc.ac.za/index.php?module=etd&amp.

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This thesis described the development of new catalytic system for the conversion of natural gas (methane) to liquid products such as methanol and formaldehyde. This technology can allow the exploitation of small and medium size gas fields without the need to build an expensive gas to liquid plants or long pipelines. The technology is based on a concept of non-separating membrane reactor where an inorganic membrane paper serves as a catalyst support through which a reaction mixture is flowing under mild conditions and short residence times.

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12

Gilmore, Rory Alan John. "Developing water and methane potentials for MD simulations of methane clathrate hydrate." Thesis, Queen Mary, University of London, 2018. http://qmro.qmul.ac.uk/xmlui/handle/123456789/41787.

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The aim of this thesis is to develop a set of intermolecular potentials that enable the study of nucleation or decomposition of methane hydrates. The potentials are developed for water, methane, and the water-methane pair by fitting to SAPT(DFT) reference energies. The first set of potentials developed differ from recent polarisable models in that they have rank 4 ISA multipoles, rank 3 anisotropic polarisabilities, rank 3 isotropic dispersion, and anisotropic exchange-repulsion terms. These potentials are validated based on the structures and energies of small clusters and second virial coeff

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13

Thevenin, Philippe. "Catalytic combustion of methane." Doctoral thesis, KTH, Chemical Engineering and Technology, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3402.

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<p>Catalytic combustion is an environmentally benign technologywhich has recently reached the stage of commercialization.Palladium is the catalyst of choice when considering gasturbines fuelled with natural gas because of its superioractivity for methane oxidation. Several fundamental issues arestill open and their understanding would result in animprovement of the technology. Hence, the work presented inthis thesis aims at the identification of some of theparameters which govern the combustion activity ofpalladium-based catalysts.</p><p>The first part of this work gives a background to cataly

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14

Kinjet, Marc Philip. "Methane production from cows." Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273714.

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15

Narsimhan, Karthik. "Catalytic, low temperature oxidation of methane into methanol over copper-exchanged zeolites." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/109671.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemical Engineering, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 135-147).<br>As production of shale gas has increased greatly in the United States, the amount of stranded shale gas that is flared as carbon dioxide has become significant enough to be considered an environmental hazard and a wasted resource. The conversion of methane, the primary component of natural gas, into methanol, an easily stored liquid, is of practical interest. However, shale wells are generally inacce

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16

Taylor, Stuart Hamilton. "The design of new catalysts for the partial oxidation of methane to methanol." Thesis, University of Liverpool, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260339.

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The direct partial oxidation of CH4 to CH30H would offer considerable economic advantages over the current two stage process. It would also facilitate the utilisation of natural gas reserves in remote locations. To date, the catalytic partial oxidation of CH4 to CH30H has been extensively studied, however, it has proved to be an extremely demanding reaction which has met with little success. This study has adopted a design approach for the identification of new catalysts by considering the efficacy of single oxides for CH4 activation, CH30H oxidation and 02 isotope exchange activity. On the ba

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17

Hamdan, Abdullah. "Infrared spectroscopy of methane dimer." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=978829921.

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18

Galbraith, Jayson Kent. "Methane production in native ruminants." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq22596.pdf.

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19

El, Solh Tarek. "Heterogeneous catalyst for methane reforming." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0007/MQ30748.pdf.

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20

Mann, Kenneth R. C. "Premixed ammonia-methane-air combustion." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ62250.pdf.

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21

Kumarasamy, Puvaneswary. "Heterogeneous catalysis for methane oxidation." Thesis, Brunel University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326890.

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22

Ashcroft, Alexander T. "Methane conversion over oxide catalysts." Thesis, University of Oxford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305983.

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23

Wang, David Texan. "The geochemistry of methane isotopologues." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111690.

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Thesis: Ph.D. in Geochemistry, Joint Program in Oceanography/Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 2017.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 123-143).<br>This thesis documents the origin, distribution, and fate of methane and several of

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24

He, Li. "Catalytic Methane Combustion in Microreactors." Thesis, Nantes, 2020. http://www.theses.fr/2020NANT4026.

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La thèse actuelle traite de la combustion catalytique du méthane dans des micro réacteurs à catalyseur Pt/γ-Al2O3 à revêtement mural. La préparation de la couche de lavage Pt/γ-Al2O3, les systèmes de revêtement catalytique monocouche et multicouche et les différentes conceptions de géométries des micro réacteurs ont été particulièrement étudiés. Divers aspects ont ainsi été abordés, y compris les procédures de préparation du revêtement de catalyseur (par exemple, les propriétés du liant, la valeur de pH, la taille de particule initiale d' Al2O3), l'optimisation de différentes conditions de réa

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25

Penteado, Paulo Fernando. "Study of Titan's Methane Cycle." Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/194314.

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We developed radiative transfer models to reproduce Titan’s visible and near infrared spectra, to determine the effects of the haze, and retrieve the methane abundances during Titan’s current southern summer. With ground-based high resolution spectra of CH3D absorption at 1.6 μm, we measured the global CH₃D abundance. Combined with observations of 8.6 μm emission of CH₃D and CH₄ that indicate their relative abundances, we thus determined the global CH₄ abundance. We expanded on these ground-based measurements, with improved radiative transfer models based on the Huygens DISR models, and spectr

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26

Wallar, Bradley James. "Probing the interactions between component B and the hydroxylase of methane monooxygenase /." Diss., ON-CAMPUS Access For University of Minnesota, Twin Cities Click on "Connect to Digital Dissertations", 2000. http://www.lib.umn.edu/articles/proquest.phtml.

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27

Balan, Huseyin Onur. "Modeling The Effects Of Variable Coal Properties On Methane Production During Enhanced Coalbed Methane Recovery." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609622/index.pdf.

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Most of the coal properties depend on carbon content and vitrinite reflectance, which are rank dependent parameters. In this study, a new approach was followed by constructing a simulation input database with rank-dependent coal properties published in the literature which are namely cleat spacing, coal porosity, density, and parameters related to strength of coal, shrinkage, swelling, and sorption. Simulations related to enhanced coalbed methane (ECBM) recovery, which is the displacement of adsorbed CH4 in coal matrix with CO2 or CO2/N2 gas injection, were run with respect to different coal

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28

Maråk, Knut Arild. "Condensation Heat Transfer and Pressure Drop for Methane and Binary Methane Fluids in Small Channels." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2009. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-5702.

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A conventional heat exchanger consists of fluid channels with diameter larger than approximately 3 mm. Here, the phenomena around heat transfer and pressure drop are more or less well understood and can be well predicted. Newer and more compact heat exchangers use channels with smaller diameter which gives multiple advantages; they occupy less volume, are lighter, may be modular and can be faster and cheaper to produce. However, it is uncertain whether the phenomena affecting heat transfer and pressure drop are the same as in the larger channels. Clarifying this with respect to possible usage

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29

Hayes, Jonathan George. "The Methane Range: Coalbed Methane Development, Sage-Grouse protection, and The Ranching Way of Life." The University of Montana, 2009. http://etd.lib.umt.edu/theses/available/etd-12192008-143539/.

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Coalbed methane development has proliferated across much of the western United States. Campbell County, Wyoming, in the Powder River Basin is one area that has seem some of the highest amounts of this development, most of it occurring on land where the surface use is livestock grazing, resulting in conflicts over resource use. This thesis takes a grounded theory approach to understanding the meaning that the ranchers that operate on this land have attached to this development. In doing so, this paper argues that these ranchers form opinions and attitudes based on how CBM has affected the ranch

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30

McMahon, Sean. "Mars, methane and microbes : deep biospheres and other sources of methane on Earth and Mars." Thesis, University of Aberdeen, 2014. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=214837.

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This thesis reports the application of geological techniques to astrobiological questions about hydrogen-consuming, methane-producing life in planetary crusts, particularly on Earth and Mars. I report original contributions to the following areas of knowledge: (1) the size of Earth's continental deep biosphere; (2) the effect of subsurface habitability on circumstellar habitable zones; (3) the habitability of martian vesicular basalt; (4) the role of methane clathrates in “Snowball Earth” deglaciation; (5) the retention of methane by rocks and minerals, with implications for deep habitats on E

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31

Boulart, Cedric. "Methane in deep sea hydrothermal plumes : development of a new in-situ methane sensing technology." Thesis, University of Southampton, 2008. https://eprints.soton.ac.uk/65667/.

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Information on the concentration and distribution of dissolved methane (CH4), together with other geochemical tracers, in real time is of great value in detecting, monitoring, and understanding the functioning of hydrothermal plumes. Water column anomalies of light transmission, dissolved CH4, manganese (Mn), and iron (Fe) were located over segments 15 and 16 of the Central Indian Ridge (CIR 20ºS), in December 2006. Along segment 15, a hydrothermal plume was present at 19°33’S/65°50’E. The source might be located north of that position and dispersed along the western flank by NW-SE currents. M

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32

Miyajima, Yusuke. "Origin of methane at ancient methane seeps inferred from organic geochemical signatures in seep carbonates." Kyoto University, 2018. http://hdl.handle.net/2433/232261.

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33

Randall, William Sanford. "How Methane Made the Mountain: The Material Ghost and the Technological Sublime in Methane Ghosts." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1460722538.

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34

Hayes, Jonathan George. "The methane range coalbed methane development, sage-grouse protection, and the ranching way of life /." [Missoula, Mont.] : The University of Montana, 2008. http://etd.lib.umt.edu/theses/available/etd-12192008-143539/unrestricted/TheMethaneRange.pdf.

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Thesis (M.S.) -- University of Montana, 2008.<br>Title from author supplied metadata. Description based on contents viewed on June 20, 2009. ETD number: etd-12192008-143539. Includes bibliographical references.

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35

Storch, Henrik von Verfasser], Bernhard [Akademischer Betreuer] Hoffschmidt, and André [Akademischer Betreuer] [Bardow. "Methanol production via solar reforming of methane / Henrik von Storch ; Bernhard Hoffschmidt, André Bardow." Aachen : Universitätsbibliothek der RWTH Aachen, 2016. http://d-nb.info/1126040878/34.

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36

Thorn, Garrick J. S. "Development of an Immobilized Nitrosomonas europaea Bioreactor for the Production of Methanol from Methane." Thesis, University of Canterbury. Chemical and Process Engineering, 2006. http://hdl.handle.net/10092/1867.

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This research investigates a novel approach to methanol production from methane. The high use of fossil fuels in New Zealand and around the world causes global warming. Using clearer, renewable fuels the problem could potentially be reduced. Biomass energy is energy stored in organic matter such as plants and animals and is one of the options for a cleaner, renewable energy source. A common biofuel is methane that is produced by anaerobic digestion. Although methane is a good fuel, the energy is more accessible if it is converted to methanol. While technology exists to produce methanol from me

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37

Fratesi, Guido. "Low temperature methane-to-methanol conversion on transition metal surfaces. An ab initio study." Doctoral thesis, SISSA, 2005. http://hdl.handle.net/20.500.11767/4087.

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38

Nealon, Jeffrey W. "Dynamics of methane migration in marine hydrate systems examples from the Guaymas Transform, Blake Ridge, and Storegga landslide /." Laramie, Wyo. : University of Wyoming, 2006. http://proquest.umi.com/pqdweb?did=1188873751&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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39

Guan, Xiangguo. "The photochemistry of polyhalomethanes in water and the water-catalyzed dehalogenation reactions of selected isopolyhalomethanes, halogenated methanols and halogenated formaldehydes." Click to view the E-thesis via HKUTO, 2006. http://sunzi.lib.hku.hk/hkuto/record/B38718960.

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40

Guan, Xiangguo, and 官向國. "The photochemistry of polyhalomethanes in water and the water-catalyzed dehalogenation reactions of selected isopolyhalomethanes,halogenated methanols and halogenated formaldehydes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B38718960.

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41

Riekie, Gail Jocelyn. "Can methane be oxidised anaerobically in soil?" Thesis, Available from the University of Aberdeen Library and Historic Collections Digital Resources, 2009. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=59018.

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42

Jin, Qinghua. "GASMAK2 model for longwall gob gas emission." Morgantown, W. Va. : [West Virginia University Libraries], 2002. http://etd.wvu.edu/templates/showETD.cfm?recnum=2706.

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Thesis (M.S.)--West Virginia University, 2002.<br>Title from document title page. Document formatted into pages; contains x, 93 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 71-72).

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43

Bräunlich, Maya. "Study of atmospheric carbon monoxide and methane Untersuchung von atmosphärischen Kohlenmonoxid und Methan anhand von Isotopenmessungen /." [S.l. : s.n.], 2000. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB8832641.

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44

Graham, Andrew W. "Methane along the western Mexican margin." Thesis, University of Hawaii at Manoa, 2003. http://hdl.handle.net/10125/6976.

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Methane and the processes controlling its distribution along the western Mexican margin were investigated in November 2001. Water column and sediment core samples were collected from 14 stations along the margin, in and around the Gulf of California, for shore-based analysis of methane concentrations and methane stable carbon isotopic ratios. These stations occupied both basin and open margin sites in and below the oxygen minimum zone. Methane concentrations in the upper 200 m of the water column were supersaturated at all sites. The sea-air fluxes of methane that resulted from this supersatur

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45

Mpuhlu, Batsho. "Synthesis of P-Methane-3,8-Diol." Thesis, Nelson Mandela Metropolitan University, 2007. http://hdl.handle.net/10948/570.

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The synthesis of para-menthane-3,8-diol in a batch reactor was investigated in some detail with the view to evaluate the potential of producing said p-menthane- 3,8-diol in a continuous-flow reactor from the results obtained from the batch process. The methodology used as base for this investigation was a published procedure by Takasago of Japan. The Takasago-method produced 92.3 percent Yield for the product para-menthane-3,8-diol, and 2.7 percent Yield of the by-product, acetal. The objective for this investigation was to produce a minimum p-menthane-3,8- diol content of 97.0 percent and a m

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46

Brown, Ann. "Methane production in Canadian muskeg bogs." Thesis, University of Ottawa (Canada), 1989. http://hdl.handle.net/10393/21229.

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47

AlBanna, Muna. "Methane oxidation in landfill cover soil." Thesis, University of Ottawa (Canada), 2005. http://hdl.handle.net/10393/26834.

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Methane, one of the primary greenhouse gases, negatively affects climate change. Its atmospheric concentration has increased dramatically over the last century and is expected to continue rising due to human activities. Oxidation of methane by methanotrophic bacteria provides a sink for methane. The rate at which methane is biologically oxidized depends on different parameters. This study aims to better understand methane oxidation in landfill cover soils. This was done through laboratory batch reactor experiments, under two levels of moisture content, two soil layer thicknesses and with and w

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48

Karimi, Kaveh Petroleum Engineering Faculty of Engineering UNSW. "Coal bed methane reservoir simulation studies." Awarded by:University of New South Wales. School of Petroleum Engineering, 2005. http://handle.unsw.edu.au/1959.4/22449.

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The purpose of this study is to perform simulation studies for a specific coal bed methane reservoir. First, the theory and reservoir engineering aspects of coal bed methane reservoirs, such as dual porosity concept, permeability characteristics of CBM reservoirs and mechanism of gas storage and gas transportation in CBM reservoir have been discussed. Next, simulation results for the CBM reservoir presented. Simulation studies were carried out by using the CBM reservoir simulator, SIMED II. Injection/fall-off test pressure data were interpreted based on the pressure history matching method. Th

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49

Dong, Yan. "Reducing methane emissions from ruminant animals." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ34756.pdf.

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50

Konieczny, Agnieszka. "Hydrogen by thermocatalytic decomposition of methane /." Available to subscribers only, 2006. http://proquest.umi.com/pqdweb?did=1240703551&sid=4&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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Thesis (M.S.)--Southern Illinois University Carbondale, 2006.<br>"Department of Mechanical Engineering and Energy Processes." Includes bibliographical references (leaves 76-80). Also available online.

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