Role Of Catalytic Agents On Combustion Front Propagation In Porous Media
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Role Of Catalytic Agents On Combustion Front Propagation In Porous Media
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Author : Gulcan Derya Adagulu Demirdal
language : en
Publisher:
Release Date : 2007
Role Of Catalytic Agents On Combustion Front Propagation In Porous Media written by Gulcan Derya Adagulu Demirdal and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Catalysts categories.
Naturally occurring clays, metallic minerals and additives change morphology and surface properties of the reservoir matrix. They modify the kinetics of oxidation reactions inside the front, and promote hydrocarbon deposition. The emphasis of this work is to investigate the front performance in the presence of catalytic agents by using an analytical model. The catalytic agents are implicitly introduced to the model in terms of their effects on combustion. It is found that, while catalytic effect is more pronounced at low air injection rates, fuel deposition effect becomes significant at high air injection rates. Variations in the activation energies of the oxidation reactions are compensated by the frequency factors, and they do not have significant effect. The combustion front behavior is also analyzed in a space of parameters that includes the effects of catalytic agents. The results show that optimal reservoir conditions have the potential to enhance combustion performance.
The Journal Of Canadian Petroleum Technology
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Author :
language : en
Publisher:
Release Date : 2008
The Journal Of Canadian Petroleum Technology written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Petroleum engineering categories.
Propagation Of Wave Like Unstabilized Combustion Fronts In Inert Porous Media
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Author : Garold Eugene Koester
language : en
Publisher:
Release Date : 1997
Propagation Of Wave Like Unstabilized Combustion Fronts In Inert Porous Media written by Garold Eugene Koester and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.
The Dynamics Of Combustion Fronts In Porous Media
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Author :
language : en
Publisher:
Release Date : 2000
The Dynamics Of Combustion Fronts In Porous Media written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
In this report, a method for solving this problem by treating the reaction region as a place of discontinuities in the appropriate variables, which include, for example, fluxes of heat and mass was proposed. Using a rigorous perturbation approach, similar to that used in the propagation of flames and smoldering combustion, appropriate jump conditions that relate the change in these variables across the front was derived. These conditions account for the kinetics of the reaction between the oxidant and the fuel, the changes in the morphology of the pore space and the heat and mass transfer in the reaction zone. The modeling of the problem reduces to the modeling of the dynamics of a combustion front, on the regions of either side of which transport of momentum (fluids), heat and mass, but not chemical reactions, must be considered. Properties of the two regions are coupled using the derived jump conditions. This methodology allows one to explicitly incorporate permeability heterogeneity effects in the process description, without the undue complexity of the coupled chemical reactions.
Applied Mechanics Reviews
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Author :
language : en
Publisher:
Release Date : 1998
Applied Mechanics Reviews written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Mechanics, Applied categories.
Fire Technology Abstracts
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Author :
language : en
Publisher:
Release Date : 1982
Fire Technology Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Fire extinction categories.
Petroleum Abstracts
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Author :
language : en
Publisher:
Release Date : 1991
Petroleum Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Petroleum categories.
Fossil Energy Update
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Author :
language : en
Publisher:
Release Date : 1981
Fossil Energy Update written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Fossil fuels categories.
Gas Transport In Porous Media
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Author : Clifford K. Ho
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-10-07
Gas Transport In Porous Media written by Clifford K. Ho and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-10-07 with Science categories.
CLIFFORD K. HOAND STEPHEN W. WEBB Sandia National Laboratories, P. O. Box 5800, Albuquerque, NM 87185, USA Gas and vapor transport in porous media occur in a number of important applications includingdryingofindustrialandfoodproducts,oilandgasexploration,environm- tal remediation of contaminated sites, and carbon sequestration. Understanding the fundamental mechanisms and processes of gas and vapor transport in porous media allows models to be used to evaluate and optimize the performance and design of these systems. In this book, gas and vapor are distinguished by their available states at stan- ? dard temperature and pressure (20 C, 101 kPa). If the gas-phase constituent can also exist as a liquid phase at standard temperature and pressure (e. g. , water, ethanol, toluene, trichlorothylene), it is considered a vapor. If the gas-phase constituent is non-condensable at standard temperature and pressure (e. g. , oxygen, carbon di- ide, helium, hydrogen, propane), it is considered a gas. The distinction is important because different processes affect the transport and behavior of gases and vapors in porous media. For example, mechanisms specific to vapors include vapor-pressure lowering and enhanced vapor diffusion, which are caused by the presence of a g- phase constituent interacting with its liquid phase in an unsaturated porous media. In addition, the “heat-pipe” exploits isothermal latent heat exchange during evaporation and condensation to effectively transfer heat in designed and natural systems.
Plasma Catalysis
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Author : Annemie Bogaerts
language : en
Publisher: MDPI
Release Date : 2019-04-02
Plasma Catalysis written by Annemie Bogaerts and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-04-02 with Technology & Engineering categories.
Plasma catalysis is gaining increasing interest for various gas conversion applications, such as CO2 conversion into value-added chemicals and fuels, N2 fixation for the synthesis of NH3 or NOx, methane conversion into higher hydrocarbons or oxygenates. It is also widely used for air pollution control (e.g., VOC remediation). Plasma catalysis allows thermodynamically difficult reactions to proceed at ambient pressure and temperature, due to activation of the gas molecules by energetic electrons created in the plasma. However, plasma is very reactive but not selective, and thus a catalyst is needed to improve the selectivity. In spite of the growing interest in plasma catalysis, the underlying mechanisms of the (possible) synergy between plasma and catalyst are not yet fully understood. Indeed, plasma catalysis is quite complicated, as the plasma will affect the catalyst and vice versa. Moreover, due to the reactive plasma environment, the most suitable catalysts will probably be different from thermal catalysts. More research is needed to better understand the plasma–catalyst interactions, in order to further improve the applications.