Download or read book Catalytic Combustion of Lean Methane on Commercial Palladium based Catalysts written by Guangyu Huang and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Palladium based Catalysts for the Catalytic Combustion of Methane written by Sara Colussi and published by . This book was released on 2006 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Combustion of Methane Over Palladium Based Catalysts Catalytic Deactivation and the Role of the Support written by William Robert Schwartz and published by . This book was released on 2011 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Methane Conversion written by D.M. Bibby and published by Elsevier. This book was released on 1988-03-01 with total page 759 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume comprises the invited plenary lectures, contributed and poster papers presented at a symposium organised to mark the successful inauguration of the world's first commercial plant for production of gasoline from natural gas, based on the Mobil methanol-to-gasoline process. The objectives of the Symposium were to present both fundamental research and engineering aspects of the development and commercialization of gas-to-gasoline processes. These include steam reforming, methanol synthesis and methanol-to-gasoline. Possible alternative processes e.g. MOGD, Fischer-Tropsch synthesis of hydrocarbons, and the direct conversion of methane to higher hydrocarbons were also considered.The papers in this volume provide a valuable and extremely wide-ranging overview of current research into the various options for natural gas conversion, giving a detailed description of the gas-to-gasoline process and plant. Together, they represent a unique combination of fundamental surface chemistry catalyst characterization, reaction chemistry and engineering scale-up and commercialization.

Download or read book Bimetallic Palladium Catalysts for Catalytic Combustion of Methane written by Katarina Persson and published by . This book was released on 2004 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deactivation Studies of Noble Metal Catalysts for Lean Methane Combustion written by Georgeta M. Istratescu and published by . This book was released on 2014 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Green House Gases (GHG) contribution to global warming has led to extensive research into reduction of emission of the GHG. Transportation, as a main contributor to GHG, faces a major challenge in researching and developing of new technologies with the aim of reducing the carbon foot print. The use of alternative fuels with lower harmful emissions became obvious as a result of emission control regulations and climate change. Natural gas engines gained popularity due to their ability to burn the fuel almost completely, which recommends them as an environmentally friendly alternative to fossil fuels engines. However, the incomplete combustion of methane in natural gas engines will release methane and carbon monoxide into the atmosphere. The fugitive methane emission problem can be tackled by the development of performant catalytic converters. This project reports on catalytic activity and stability of three sets of catalyst. The first set, palladium only catalysts provided by 15, 80 and 150 g/ft3 loading, were designed for methane combustion but not necessarily for lean burn engines. The second set studied were 2 catalysts: Pt and Pt-Pd (4:1) catalyst, with a loading of 95 g/ft3. Their mainly intend was the use as diesel oxidation catalysts. The third set of catalytic converters was designed for use for lean burn gas engines. The catalysts studied were Pt-Pd (1:5) with a loading of 150 g/ft3, Pd 122 (122 g/ft3), Pd Rh (117.15:2.85) (loading 120 g/ft3) and PtPdRh (19:73:2.85) with a loading of 94.85 g/ft3. The influence of different pretreatments on the catalyst activity (i.e. de-greening temperature, reduction process) were studied through ignition-extinction experiments. The stability of the catalyst was investigated through thermal ageing experiments. The effect of water on the catalytic activity was investigated through hydro-thermal ageing experiments.

Download or read book Catalytic Combustion of Methane with Nanostructured Barium Hexaaluminate based Materials written by Juan Andrey Zarur Jury and published by . This book was released on 1999 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalytic Combustion written by Sophie A. Cottilard and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Catalytic combustion has been developed as a method of promoting efficient combustion over a wide range of air-to-fuel ratios with a minimum pollutant formation at low temperatures as compared to conventional flame combustion. In this book, the authors present current research in the study of catalytic combustion including commercial and industrial research in combustion and fluidisation engineering; the catalytic combustion of soot; using metal oxides to improve catalytic efficiency; catalytic combustion in the removal of pollutants from exhaust gases and in the energy conversion field and the catalytic combustion of methane using ceria-zirconia.

Download or read book Synthesis Characterization and Activity of Palladium Catalysts on the Dual Support of Cerium and Aluminum Oxides written by Jihyeon Park and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of sequence of impregnation (Pd on cerium oxides -alumina and cerium oxides on Pd-alumina) and calcination temperature (500 °C and 850 °C) on the catalytic oxidation of methane under lean conditions were investigated. The catalysts were prepared by a combination of impregnation, slurry and vortexing methods. The catalysts had 4.7 wt.% Pd and 10.7 wt.% Ce based on inductively coupled plasma optical emission spectrometry (ICP-OES) analysis. The catalysts were characterized by pulse chemisorption, temperature programmed reduction (TPD), scanning transmission electron microscopy (STEM), and X-ray photoelectron spectroscopy (XPS). The activity of the catalysts for methane combustion was measured in a fixed-bed flow reactor by flowing a gas mix (0.98 vol % methane, 4.01 vol % and balance nitrogen) through a catalytic bed. The temperature of the catalytic bed was controlled by a temperature -controlled tube furnace. The % methane in the effluent gas mix was measured by a gas chromatograph fitted with a flame ionization detector and a ‘Carbon Plot’ column. Palladium was present as PdO and PdOx x>2+ and cerium as CeOx (+3 and +4 oxidation states) as per XPS analysis. The activity of the Pd/cerium oxides-alumina500C catalyst was higher than the cerium oxides/Pd-alumina500C catalyst at 250-500 °C. Similar trends in the activity were seen for the two catalysts calcined at 850 °C. Higher dispersion and lower particle size, and the presence of small Pd particles on alumina accounted for the higher catalytic activities of the Pd/cerium oxides-alumina500C and 850C catalysts. The lower activities of cerium oxides/Pd-alumina500C and 850C were primarily due to the embedment of Pd onto ceria due to strong PdO-CeOx interactions. This research implies that the sequence of impregnation and calcination temperature could alter catalytic properties and activity for methane combustion through PdO/PdOx -support interactions.

Download or read book Platinum palladium Catalysts for Methane fuelled Heaters written by Xiaoxing Wu and published by . This book was released on 2015 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural-gas fuelled catalytic heaters are commonly used in heating industrial space and remote location operations. Industrial units typically contain platinum that provides methane combustion at lower temperatures than non-catalytic burning. This work aimed to find a cost-efficient alternative to monometallic platinum catalyst by replacing some of platinum with less expensive palladium, which is also known for methane combustion activity. The task is complicated by non-uniform reactant profiles across the catalytic pad. Several Pd:Pt bimetallic catalysts were prepared by dry impregnation of commercial pads with metal precursors and tested in methane combustion with 5% water presence at two different methane-to-oxygen molar ratios (0.2 and 0.02). Pt1.6Pd catalyst (molar ratio) is recommended to replace monometallic platinum: it provides higher activity than monometallic Pt catalyst at 0.02 CH4-to-O2 ratio. At the 0.2 ratio, its activity is lower than that of Pt, but is sufficient for adequate heater operation.

Download or read book Catalytic Combustion for Mitigation of Lean Methane Emission written by Rajab Litto and published by LAP Lambert Academic Publishing. This book was released on 2011-05 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: The global warming problem might be the greatest threat to the future of mankind, and scientists have concluded that Energy related activities are the main cause. Leaks in natural gas transmission facilities are the main sources of fugitive methane emissions which are difficult to mitigate. This book aims at evaluating the possibility of using catalytic reactor t for mitigation of fugitive methane emissions. The focus will be on natural gas compressor station which is a major single source of fugitive methane. Computer modelling of the flow patterns inside the building demonstrated the influence of ventilation openings, ambient temperature and leak location. For a typical building most methane emitted inside will exit through the ridge vent provided the main doors remain closed. When the extraction rate through the ridge vent is controlled, the methane concentration can satisfy the CFRR feed quality. The reactor performance was studied in detail. Two different types of catalysts were evaluated and also a number of parametric studies were conducted. Overall, the proposed technology offers promising results for methane emission abatement.

Download or read book Methane and its Derivatives written by Sunggyu Lee and published by CRC Press. This book was released on 1996-10-18 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Covers the chemistry, process chemistry, technology, engineering, and economics of methane conversion, including its environmental impact and commercial exploitation. Begins with methane's availability and increasing importance as an environmentally acceptable natural resource alternative and feedstock."

Download or read book Methane Combustion over Lanthanum based Perovskite Mixed Oxides written by Hamidreza Arandiyan and published by Springer. This book was released on 2015-04-30 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents current research into the catalytic combustion of methane using perovskite-type oxides (ABO3). Catalytic combustion has been developed as a method of promoting efficient combustion with minimum pollutant formation as compared to conventional catalytic combustion. Recent theoretical and experimental studies have recommended that noble metals supported on (ABO3) with well-ordered porous networks show promising redox properties. Three-dimensionally ordered macroporous (3DOM) materials with interpenetrated and regular mesoporous systems have recently triggered enormous research activity due to their high surface areas, large pore volumes, uniform pore sizes, low cost, environmental benignity, and good chemical stability. These are all highly relevant in terms of the utilization of natural gas in light of recent catalytic innovations and technological advances. The book is of interest to all researchers active in utilization of natural gas with novel catalysts. The research covered comes from the most important industries and research centers in the field. The book serves not only as a text for researcher into catalytic combustion of methane, 3DOM perovskite mixed oxide, but also explores the field of green technologies by experts in academia and industry. This book will appeal to those interested in research on the environmental impact of combustion, materials and catalysis.

Download or read book Handbook of Climate Change Mitigation written by Wei-Yin Chen and published by Springer. This book was released on 2012-02-13 with total page 2130 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a mounting consensus that human behavior is changing the global climate and its consequence could be catastrophic. Reducing the 24 billion metric tons of carbon dioxide emissions from stationary and mobile sources is a gigantic task involving both technological challenges and monumental financial and societal costs. The pursuit of sustainable energy resources, environment, and economy has become a complex issue of global scale that affects the daily life of every citizen of the world. The present mitigation activities range from energy conservation, carbon-neutral energy conversions, carbon advanced combustion process that produce no greenhouse gases and that enable carbon capture and sequestion, to other advanced technologies. From its causes and impacts to its solutions, the issues surrounding climate change involve multidisciplinary science and technology. This handbook will provide a single source of this information. The book will be divided into the following sections: Scientific Evidence of Climate Change and Societal Issues, Impacts of Climate Change, Energy Conservation, Alternative Energies, Advanced Combustion, Advanced Technologies, and Education and Outreach.

Download or read book Effects of Alumina Phase and Loading Amount on Catalytic Methane Combustion Activity of Pd and Pt Based Catalysts written by Natthakorn Kraikul and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fundamentals of Combustion Processes written by Sara McAllister and published by Springer Science & Business Media. This book was released on 2011-05-10 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Combustion Processes is designed as a textbook for an upper-division undergraduate and graduate level combustion course in mechanical engineering. The authors focus on the fundamental theory of combustion and provide a simplified discussion of basic combustion parameters and processes such as thermodynamics, chemical kinetics, ignition, diffusion and pre-mixed flames. The text includes exploration of applications, example exercises, suggested homework problems and videos of laboratory demonstrations

Download or read book The Catalytic Combustion of Methane Over Supported Noble Metal Catalysts written by Michael Gerard McGrath and published by . This book was released on 1995 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: