Studies On The Deactivation And Reactivation Of Spent Hydroprocessing Catalyst
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Studies On The Deactivation And Reactivation Of Spent Hydroprocessing Catalyst
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Author : Meena Abdul-Nabi Marafi
language : en
Publisher:
Release Date : 1996
Studies On The Deactivation And Reactivation Of Spent Hydroprocessing Catalyst written by Meena Abdul-Nabi Marafi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
Handbook Of Spent Hydroprocessing Catalysts
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Author : Meena Marafi
language : en
Publisher: Elsevier
Release Date : 2010-06-07
Handbook Of Spent Hydroprocessing Catalysts written by Meena Marafi and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-06-07 with Technology & Engineering categories.
This handbook serves scientists and researchers interested in any aspect of spent hydroprocessing catalysts. Its aim is to assist in the analysis and assessment of refined catalyst byproducts and processing options, to determine whether spent catalysts can be processed into productive resources. For non-regenerable spent catalysts, the book takes into consideration both safety and ecological implications of utilizing landfill and other waste options. Provides comprehensive guidance and assistance to those making decisions on the fate of spent catalysts, radically improving strategic options for refining organisations Offers solutions that maximize procedural, regulatory, safety, and preparedness benefits Contains detailed information on hazardous characteristics of spent and regenerated catalysts with deployment recommendations, and acts as a benchmark document for establishing threshold limits of regulated species as well as for developing procedures for handling spent catalysts to ensure environmental acceptance
Handbook Of Spent Hydroprocessing Catalysts
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Author : Meena Marafi
language : en
Publisher: Elsevier
Release Date : 2017-01-18
Handbook Of Spent Hydroprocessing Catalysts written by Meena Marafi and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-18 with Technology & Engineering categories.
Handbook of Spent Hydroprocessing Catalysts, Second Edition, covers all aspects of spent hydroprocessing catalysts, both regenerable and non-regenerable. It contains detailed information on hazardous characteristics of spent and regenerated catalysts. The information forms a basis for determining processing options to make decisions on whether spent catalysts can be either reused on refinery site after regeneration or used as the source of new materials. For non-regenerable spent catalysts, attention is paid to safety and ecological implications of utilizing landfill and other waste handling and storage options to ensure environmental acceptance. As such, this handbook can be used as a benchmark document to develop threshold limits of regulated species. Includes experimental results and testing protocols which serve as a basis for the development of methodologies for the characterization of solid wastes Presents a database which assists researchers in selecting/designing research projects on spent catalysts, i.e., regeneration vs. rejuvenation and metal reclamation Provides the environmental laws, acts, and liabilities to raise awareness in safety and health issues in all aspects of spent catalysts Contains solid waste management procedures specific to hydroprocessing that serve as a model for designing research projects in other solid waste areas
Deactivation Of Heavy Oil Hydroprocessing Catalysts
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Author : Jorge Ancheyta
language : en
Publisher: John Wiley & Sons
Release Date : 2016-07-25
Deactivation Of Heavy Oil Hydroprocessing Catalysts written by Jorge Ancheyta and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-07-25 with Technology & Engineering categories.
Written by a scientist and researcher with more than 25 years of experience in the field, this serves as a complete guide to catalyst activity loss during the hydroprocessing of heavy oils. Explores the physical and chemical properties of heavy oils and hydroprocessing catalysts; the mechanisms of catalyst deactivation; catalyst characterization by a variety of techniques and reaction conditions; laboratory and commercial information for model validations; and more Demonstrates how to develop correlations and models for a variety of reaction scales with step-by-step descriptions and detailed experimental data Contains important implications for increasing operational efficiencies within the petroleum industry An essential reference for professionals and researchers working in the refining industry as well as students taking courses on chemical reaction engineering
Catalysts Deactivation Poisoning And Regeneration
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Author : Luciana Lisi
language : en
Publisher: MDPI
Release Date : 2019-10-01
Catalysts Deactivation Poisoning And Regeneration written by Luciana Lisi and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-10-01 with Science categories.
Catalyst lifetime represents one of the most crucial economic aspects in industrial catalytic processes, due to costly shutdowns, catalyst replacements, and proper disposal of spent materials. Not surprisingly, there is considerable motivation to understand and treat catalyst deactivation, poisoning, and regeneration, which causes this research topic to continue to grow. The complexity of catalyst poisoning obviously increases along with the increasing use of biomass/waste-derived/residual feedstocks and with requirements for cleaner and novel sustainable processes. This book collects 15 research papers providing insights into several scientific and technical aspects of catalyst poisoning and deactivation, proposing more tolerant catalyst formulations, and exploring possible regeneration strategies.
Regeneration Of Spent Catalyst And Impregnation Of Catalyst By Supercritical Fluid
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Author : Farid M. Gumerov
language : en
Publisher: Nova Science Publishers
Release Date : 2016
Regeneration Of Spent Catalyst And Impregnation Of Catalyst By Supercritical Fluid written by Farid M. Gumerov and has been published by Nova Science Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with Science categories.
A catalyst is a material of constant composition, which accelerates the rate of a chemical reaction by providing a suitable reaction pathway with the lowest activation energy. As the activation energy is lower, more reaction products are formed in the same period of time. Most catalytic reactions encountered in hydrocarbon processing are carried out with porous catalysts to provide a sufficient surface area for the metal dispersion and the ensuing reaction. These catalysts gradually lose their catalytic activity, usually through structural changes, poisoning, or the deposit of extraneous material. A catalyst which can no longer exhibit the necessary activity and/or is specificity required by the user is referred to as a "spent catalyst". Catalysts are critical to the chemical industry and are now used in most industrial chemical processes. Along with the rapid development and wide application of catalysis technology, the amounts of different spent catalysts are increased from year to year. The physical properties of spent catalysts, as well as their composition, are generally different from those of fresh catalysts. For example, spent hydrotreating catalysts contain metal sulfides and coke, and may have additional contaminants that were not present in the fresh catalyst. Catalyst regeneration involves the processing of spent catalysts in order to make them reusable. This is done by restoring the initial properties of spent catalysts and thus restoring their efficiency through a process called regeneration of catalysts. Traditional methods of vapor-air regeneration are energy-consuming and severely limit the number of regeneration cycles. Using supercritical fluid CO2-extraction process, according to some estimates, provides a two-fold energy savings and an increasing number of regeneration cycles possible. This book gathers a series of studies describing new methods for the regeneration of heterogeneous catalysts for important industrial chemical processes. In this book we propose new extraction techniques using supercritical fluid extraction (SFC), which seems to be one of the most promising as a green reaction medium. The feasibility of using supercritical fluid ?2 extraction process was investigated in particular for spent catalyst regeneration. The low regeneration temperature of supercritical carbon dioxide eliminates the risk of thermal deterioration of the catalyst (namely the collapse of the pores), prevents the reduction of the surface area and the sintering, and allows regeneration of catalysts with an activity close to that of fresh catalysts. The results of the implementation of the supercritical fluid ?2 extraction process with respect to samples of industrial deactivated catalysts are provided. A comparison of the characteristics of the regenerated catalyst samples by traditional approaches and the SC-CO2 extraction process is carried out. The possibility of using a supercritical fluid CO2 impregnation technique in the synthesis of a palladium catalyst is also studied.
Deactivation And Poisoning Of Catalysts
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Author : J. Oudar
language : en
Publisher: CRC Press
Release Date : 1985-07-02
Deactivation And Poisoning Of Catalysts written by J. Oudar and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985-07-02 with Science categories.
Deactivation and Poisoning of Catalysts presents the most current research in the area of heterogeneous catalysis. It focuses on the chemically induced effects associated with bonded surface species that cause catalyst activity decline -- and in some cases a change in catalyst specificity. In addition, this volume examines poisoning of dispersed metal catalysts ... the thermodynamics of sulfur-metal and carbon-metal interactions ... model poisoning reactions on single crystals ... deactivation in petroleum refining and petrochemical processes ... coking of metal catalysts ... and more. The new approaches and solutions to catalyst deactivation and poisoning presented in this guide are invaluable to all heterogeneous catalysis specialists, including chemical and petroleum engineers, and surface, synthetic, physical, and industrial chemists. Book jacket.
Studies Of Catalyst Deactivation During Hydrotreating Of Heavy Oils
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Author : J. Ancheyta
language : en
Publisher:
Release Date : 2003
Studies Of Catalyst Deactivation During Hydrotreating Of Heavy Oils written by J. Ancheyta and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Chemical engineering categories.
Catalysts In Petroleum Refining And Petrochemical Industries 1995
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Author : M. Absi-Halabi
language : en
Publisher: Elsevier
Release Date : 1996-01-15
Catalysts In Petroleum Refining And Petrochemical Industries 1995 written by M. Absi-Halabi and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-01-15 with Technology & Engineering categories.
Catalysis plays an increasingly critical role in modern petroleum refining and basic petrochemical industries as market demands for and specifications of petroleum and petrochemical products are continuously changing. As we enter the 21st century, new challenges for catalysis science and technology are anticipated in almost every field. Particularly, better utilization of petroleum resources and demands for cleaner transportation fuels are major items. It was against this background that the 2nd International Conference on Catalysts in Petroleum Refining and Petrochemical Industries was organized. The conference was attended by around 300 specialists in the catalysis field from both academia and industry from over 30 countries. It provided a forum for the exchange of ideas between scientists and engineers from the region with their counterparts from industrialized countries. The papers from the conference, which were carefully selected from around 100 submissions, were refereed in terms of scientific and technical content and format in accordance with internationally accepted standards. They comprise a mix of reviews providing an overview of selected areas, original fundamental research results, and industrial experiences.
Activation Deactivation And Poisoning Of Catalysts
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Author : John B. Butt
language : en
Publisher:
Release Date : 1988
Activation Deactivation And Poisoning Of Catalysts written by John B. Butt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Science categories.