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The Catalytic Membrane Reactor For The Conversion Of Methane To Methanol And Formaldehyde Under Mild Conditions
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Book Synopsis The Catalytic Membrane Reactor for the Conversion of Methane to Methanol and Formaldehyde Under Mild Conditions by : Remegia Mmalewane Modibedi
Download or read book The Catalytic Membrane Reactor for the Conversion of Methane to Methanol and Formaldehyde Under Mild Conditions written by Remegia Mmalewane Modibedi and published by . This book was released on 2005 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis The Catalytic Conversion of Methane to Methanol and Formaldehyde Under Mild Conditions by : Remegia Mmalewane Modibedi
Download or read book The Catalytic Conversion of Methane to Methanol and Formaldehyde Under Mild Conditions written by Remegia Mmalewane Modibedi and published by . This book was released on 2000 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study a catalyst that works at low temperature and atmospheric pressure for the oxidation of methane to methanol and formaldehyde was developed. Catalyst preparation was based on the fact that the higher activity and selectivity to the desired products obtained over supported catalysts, compared to bulk oxides, can be attributed to the formation of easily reducible supported metal oxide phases.
Book Synopsis Direct Conversion of Methane to Methanol in a Non-isothermal Catalytic Membrane Reactor by :
Download or read book Direct Conversion of Methane to Methanol in a Non-isothermal Catalytic Membrane Reactor written by and published by . This book was released on 1993 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The direct partial oxidation of CH4 to CH3OH has been studied in a non-permselective, non-isothermal catalytic membrane reactor system. A cooling tube introduced coaxially inside a tubular membrane reactor quenches the product stream rapidly so that further oxidation of CH3OH is inhibited. Selectivity for CH3OH formation is significantly higher with quenching than in experiments without quenching. For CH4 conversion of 4% to 7% CH3OH selectivity is 40% to 50% with quenching and 25% to 35% without quenching.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-04 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Direct Natural Gas Conversion to Value-Added Chemicals by : Jianli Hu
Download or read book Direct Natural Gas Conversion to Value-Added Chemicals written by Jianli Hu and published by CRC Press. This book was released on 2020-09-25 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Direct Natural Gas Conversion to Value-Added Chemicals comprehensively discusses all major aspects of natural gas conversion and introduces a broad spectrum of recent technological developments. Specifically, the book describes heterogeneous and homogeneous catalysis, microwave-assisted conversion, non-thermal plasma conversion, electrochemical conversion, and novel chemical looping conversion approaches. Provides an excellent benchmark resource for the industry and academics Appeals to experienced researchers as well as newcomers to the field, despite the variety of contributing authors and the complexity of the material covered Includes all aspects of direct natural gas conversion: fundamental chemistry, different routes of conversion, catalysts, catalyst deactivation, reaction engineering, novel conversion concepts, thermodynamics, heat and mass transfer issues, system design, and recent research and development Discusses new developments in natural gas conversion and future challenges and opportunities This book is as an excellent resource for advanced students, technology developers, and researchers in chemical engineering, industrial chemistry, and others interested in the conversion of natural gas.
Book Synopsis Methane Conversion by Oxidative Processes by : Wolf
Download or read book Methane Conversion by Oxidative Processes written by Wolf and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: A reasonable case could be made that the scientific interest in catalytic oxidation was the basis for the recognition of the phenomenon of catalysis. Davy, in his attempt in 1817 to understand the science associated with the safety lamp he had invented a few years earlier, undertook a series of studies that led him to make the observation that a jet of gas, primarily methane, would cause a platinum wire to continue to glow even though the flame was extinguished and there was no visible flame. Dobereiner reported in 1823 the results of a similar investigation and observed that spongy platina would cause the ignition of a stream of hydrogen in air. Based on this observation Dobereiner invented the first lighter. His lighter employed hydrogen (generated from zinc and sulfuric acid) which passed over finely divided platinum and which ignited the gas. Thousands of these lighters were used over a number of years. Dobereiner refused to file a patent for his lighter, commenting that "I love science more than money." Davy thought the action of platinum was the result of heat while Dobereiner believed the ~ffect ~as a manifestation of electricity. Faraday became interested in the subject and published a paper on it in 1834; he concluded that the cause for this reaction was similar to other reactions.
Book Synopsis Direct Methane Conversion to Methanol by :
Download or read book Direct Methane Conversion to Methanol written by and published by . This book was released on 1992 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Objective is to demonstrate the effectiveness of a catalytic membrane reactor (ceramic membrane combined with catalyst) to selectively produce methanol by partial oxidation of methane. None of the membranes tested in a high pressure system could selectively remove methanol, until a cooling tube was inserted inside the membrane reactor to quench the product stream; this effectively increased methanol selectivity 2[times] during methane oxidation. For both conditions, combined selectivity for methanol and CO is constant, 85%. The remaining product is CO[sub 2]. The membranes were broken when removed from the system; this was remedied when a cooling tube with a smaller diameter was used.
Download or read book Methane Conversion to Methanol written by and published by . This book was released on 1992 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research study is to demonstrate the effectiveness of a catalytic membrane reactor for the partial oxidation of methane. The specific goals are to demonstrate that we can improve product yield, demonstrate the optimal conditions for membrane reactor operation, determine the transport properties of the membrane, and provide demonstration of the process at the pilot plant scale. The last goal will be performed by Unocal, Inc., our industrial partner, upon successful completion of this study.
Book Synopsis Non-oxidative Coupling of Methane for Use in a Hydrogen Transporting Membrane Reactor by : Michael O'Neal Nutt
Download or read book Non-oxidative Coupling of Methane for Use in a Hydrogen Transporting Membrane Reactor written by Michael O'Neal Nutt and published by . This book was released on 2000 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Methane Conversion by Oxidative Processes by : Eduardo E. Wolf
Download or read book Methane Conversion by Oxidative Processes written by Eduardo E. Wolf and published by Springer. This book was released on 1992 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: A reasonable case could be made that the scientific interest in catalytic oxidation was the basis for the recognition of the phenomenon of catalysis. Davy, in his attempt in 1817 to understand the science associated with the safety lamp he had invented a few years earlier, undertook a series of studies that led him to make the observation that a jet of gas, primarily methane, would cause a platinum wire to continue to glow even though the flame was extinguished and there was no visible flame. Dobereiner reported in 1823 the results of a similar investigation and observed that spongy platina would cause the ignition of a stream of hydrogen in air. Based on this observation Dobereiner invented the first lighter. His lighter employed hydrogen (generated from zinc and sulfuric acid) which passed over finely divided platinum and which ignited the gas. Thousands of these lighters were used over a number of years. Dobereiner refused to file a patent for his lighter, commenting that "I love science more than money." Davy thought the action of platinum was the result of heat while Dobereiner believed the ~ffect ~as a manifestation of electricity. Faraday became interested in the subject and published a paper on it in 1834; he concluded that the cause for this reaction was similar to other reactions.
Book Synopsis Catalytic Membranes and Membrane Reactors by : José G. Sanchez Marcano
Download or read book Catalytic Membranes and Membrane Reactors written by José G. Sanchez Marcano and published by Wiley-VCH Verlag GmbH. This book was released on 2002 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This work encompasses a broad treatment of the field, including the basic principles of membrane reactors, a comparative study of these and other, classical reactors, modelling, industrial applications, emerging applications, etc.".
Book Synopsis Integrated Catalytic Membrane Reactor for Oxidative Coupling of Methane by : Michiel Boeckx
Download or read book Integrated Catalytic Membrane Reactor for Oxidative Coupling of Methane written by Michiel Boeckx and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Development of Selective Oxidation Catalysts for the Conversion of Methane to Methanol Or Formaldehyde by : B. K. Hodnett
Download or read book The Development of Selective Oxidation Catalysts for the Conversion of Methane to Methanol Or Formaldehyde written by B. K. Hodnett and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Catalytic Reaction Synthesis for the Partial Oxidation of Methane to Formaldehyde by : Maria-Guadalupe Cardenas-Galindo
Download or read book Catalytic Reaction Synthesis for the Partial Oxidation of Methane to Formaldehyde written by Maria-Guadalupe Cardenas-Galindo and published by . This book was released on 1993 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Enhanced Natural Gas and Methane Conversion Into Methanol in a Membrane Driven Reactor (experimental Modeling and Simulative Comparison with Fixed Catalytic Reactors) by : Savvas Vassileiadis (Dr. (PI))
Download or read book Enhanced Natural Gas and Methane Conversion Into Methanol in a Membrane Driven Reactor (experimental Modeling and Simulative Comparison with Fixed Catalytic Reactors) written by Savvas Vassileiadis (Dr. (PI)) and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Methane Coupling by Membrane Reactor. Quarterly Technical Progress Report, June 25, 1995--September 24, 1995 by :
Download or read book Methane Coupling by Membrane Reactor. Quarterly Technical Progress Report, June 25, 1995--September 24, 1995 written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The research focus, for the development of a radial flow catalytic membrane reactor for studying methane coupling, concentrated on understanding the effects of pore size, catalyst loading and catalyst distribution inside the membrane, on the hydrocarbon selectivity. The experimental results from the catalytic studies of oxidative coupling of methane in the radial flow membrane reactors are summarized in this report and the reactor performances of three radial flow reactors with pore sizes of 0.02[mu]m are interpreted by the energy dispersive X-ray digital mapping (EDX) technique. A conventional fixed bed catalytic reactor was set up and run under the same conditions as were used for the radial flow reactor studies. Two sources of samarium oxide catalysts were used in these experiments and their performances were compared in terms of C[sub 2] selectivity at same methane conversion. Compared to the monoclinic form of samarium oxide, the catalyst with cubic form was more active and selective for methane oxidative coupling. A general reactor model for oxidation reactions with distributed feed of oxygen and product removal strategies was proposed. Six types of feeding modes were analyzed and their feed distributions were optimized such that the desired product yields at the reactor outlet were maximized.
Book Synopsis Conversion of Methane and Carbon Dioxide Using Catalytic Membranes by : Alexey Fedotov
Download or read book Conversion of Methane and Carbon Dioxide Using Catalytic Membranes written by Alexey Fedotov and published by Omniscriptum. This book was released on 2011-05 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study reports the development of a new process to convert methane and carbon dioxide into syngas from non-oil resources. The process uses membrane catalytic systems (MCS) that support heterogeneous catalytic reactions in gaseous phase in membrane channels. An active surface of the catalysts formed inside the micro- channels is low in term of area, but it is characterized by a high value of the catalyst surface/volume ratio, which induces a high efficiency of heterogeneous catalysis. Such MCS, having 10⌃8 pores per cm2 of surface, can be considered as a set of nano reactors. MCS are formed from alkoxy derivatives and precursor metal complex containing between 0.008 and 0.055% by weight of nano- components mono-and bimetallic active distributed evenly in the channels. For systems La-Ce/Ni-Al and Pd-Mn/Ni-Al, productivities of 10500 and 7500 l/h∙dm3 were respectively obtained at 650°C with a composition of syngas H2/СО ranging from 0.63 to 1.25 and a conversion rate of 50% with a CH4/СО2 (1/1) feed. Thus MCS is an order of magnitude more efficient than a fixed bed reactor of the same catalyst. A catalytic synergy has been demonstrated for the system Pd-Mn.
