Processing of Heavy Crude Oils

Processing of Heavy Crude Oils

Author: Ramasamy Marappa Gounder

Publisher: Intechopen

Published: 2019

Total Pages: 274

ISBN-13: 1839684097

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Unconventional heavy crude oils are replacing the conventional light crude oils slowly but steadily as a major energy source. Heavy crude oils are cheaper and present an opportunity to the refiners to process them with higher profit margins. However, the unfavourable characteristics of heavy crude oils such as high viscosity, low API gravity, low H/C ratio, chemical complexity with high asphaltenes content, high acidity, high sulfur and increased level of metal and heteroatom impurities impede extraction, pumping, transportation and processing. Very poor mobility of the heavy oils, due to very high viscosities, significantly affects production and transportation. Techniques for viscosity reduction, drag reduction and in-situ upgrading of the crude oil to improve the flow characteristics in pipelines are presented in this book. The heavier and complex molecules of asphaltenes with low H/C ratios present many technological challenges during the refining of the crude oil, such as heavy coking on catalysts. Hydrogen addition and carbon removal are the two approaches used to improve the recovery of value-added products such as gasoline and diesel. In addition, the heavy crude oil needs pre-treatment to remove the high levels of impurities before the crude oil can be refined. This book introduces the major challenges and some of the methods to overcome them.


Hydrotreating Catalysts

Hydrotreating Catalysts

Author: R.G. Anthony

Publisher: Elsevier

Published: 1989-08-28

Total Pages: 307

ISBN-13: 0080887449

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This book provides much information of interest to anyone working in the petroleum industry or studying catalyst preparation and characterization in industrial or university laboratories. It contains both review articles and papers reporting progress concerning hydrotreating catalysts which together provide an up-to-date picture of this interesting field. The use of modern spectroscopic techniques in catalyst characterization is described and new concepts such as microbial upgrading and the use of crystallography data in catalyst design are presented.


Experimental Methods for Evaluation of Hydrotreating Catalysts

Experimental Methods for Evaluation of Hydrotreating Catalysts

Author: Jorge Ancheyta

Publisher: John Wiley & Sons

Published: 2020-06-08

Total Pages: 429

ISBN-13: 1119517990

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Presents detailed information and study cases on experiments on hydrotreating catalysts for the petroleum industry Catalytic hydrotreating (HDT) is a process used in the petroleum refining industry for upgrading hydrocarbon streams—removing impurities, eliminating metals, converting asphaltene molecules, and hydrocracking heavy fractions. The major applications of HDT in refinery operations include feed pretreatment for conversion processes, post-hydrotreating distillates, and upgrading heavy crude oils. Designing HDT processes and catalysts for successful commercial application requires experimental studies based on appropriate methodologies. Experimental Methods for Evaluation of Hydrotreating Catalysts provides detailed descriptions of experiments in different reaction scales for studying the hydrotreating of various petroleum distillates. Emphasizing step-by-step methodologies in each level of experimentation, this comprehensive volume presents numerous examples of evaluation methods, operating conditions, reactor and catalyst types, and process configurations. In-depth chapters describe experimental setup and procedure, analytical methods, calculations, testing and characterization of catalyst and liquid products, and interpretation of experiment data and results. The text describes experimental procedure at different levels of experimentation—glass reactor, batch reactor, continuous stirred tank reactor, and multiple scales of tubular reactors—using model compounds, middle distillates and heavy oil. This authoritative volume: Introduces experimental setups used for conducting research studies, such as type of operation, selection of reactor, and analysis of products Features examples focused on the evaluation of different reaction parameters and catalysts with a variety of petroleum feedstocks Provides experimental data collected from different reaction scales Includes experiments for determining mass transfer limitations and deviation from ideality of flow pattern Presents contributions from leading scientists and researchers in the field of petroleum refining Experimental Methods for Evaluation of Hydrotreating Catalysts is an indispensable reference for researchers and professionals working in the area of catalytic hydrotreating, as well as an ideal textbook for courses in fields such as chemical engineering, petrochemical engineering, and biotechnology.


Deactivation of Heavy Oil Hydroprocessing Catalysts

Deactivation of Heavy Oil Hydroprocessing Catalysts

Author: Jorge Ancheyta

Publisher: John Wiley & Sons

Published: 2016-07-25

Total Pages: 360

ISBN-13: 1118769813

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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


Synthesis of Solid Catalysts

Synthesis of Solid Catalysts

Author: Krijn P. de Jong

Publisher: John Wiley & Sons

Published: 2009-06-22

Total Pages: 436

ISBN-13: 3527320407

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This practical book combines recent progress with a discussion of the general aspects of catalyst preparation. The first part deals with the basic principles of solid catalyst preparation, explaining the main aspects of sol-gel chemistry and interfacial chemistry, followed by such techniques as co-precipitation and immobilization. New tools for catalyst preparation research, including microspectroscopy and high-throughput experimentation, are also taken into account. The second part heightens the practical relevance by providing six case studies on such topics as the preparation of zeolites, hydrotreating catalysts, methanol catalysts and gold catalysts


Hydroprocessing for Clean Energy

Hydroprocessing for Clean Energy

Author: Frank (Xin X.) Zhu

Publisher: John Wiley & Sons

Published: 2016-12-01

Total Pages: 661

ISBN-13: 111932825X

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Provides a holistic approach that looks at changing process conditions, possible process design changes, and process technology upgrades Includes process integration techniques for improving process designs and for applying optimization techniques for improving operations focusing on hydroprocessing units. Discusses in details all important aspects of hydroprocessing – including catalytic materials, reaction mechanism, as well as process design, operation and control, troubleshooting and optimization Methods and tools are introduced that have a successful application track record at UOP and many industrial plants in recent years Includes relevant calculations/software/technologies hosted online for purchasers of the book


Catalysis for Clean Energy and Environmental Sustainability

Catalysis for Clean Energy and Environmental Sustainability

Author: K. K. Pant

Publisher: Springer Nature

Published: 2021-04-01

Total Pages: 754

ISBN-13: 3030650219

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This book is part of a two-volume work that offers a unique blend of information on realistic evaluations of catalyst-based synthesis processes using green chemistry principles and the environmental sustainability applications of such processes for biomass conversion, refining, and petrochemical production. The volumes provide a comprehensive resource of state-of-the-art technologies and green chemistry methodologies from researchers, academics, and chemical and manufacturing industrial scientists. The work will be of interest to professors, researchers, and practitioners in clean energy catalysis, green chemistry, chemical engineering and manufacturing, and environmental sustainability. This volume focuses on catalyst synthesis and green chemistry applications for petrochemical and refining processes. While most books on the subject focus on catalyst use for conventional crude, fuel-oriented refineries, this book emphasizes recent transitions to petrochemical refineries with the goal of evaluating how green chemistry applications can produce clean energy through petrochemical industrial means. The majority of the chapters are contributed by industrial researchers and technicians and address various petrochemical processes, including hydrotreating, hydrocracking, flue gas treatment and isomerization catalysts.


Catalytic Hydroprocessing of Petroleum and Distillates

Catalytic Hydroprocessing of Petroleum and Distillates

Author: Michael Oballa

Publisher: CRC Press

Published: 2020-08-13

Total Pages: 479

ISBN-13: 1000105148

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This work is based on the proceedings of the American Institute of Chemical Engineers' Spring National Meeting in Houston, Texas, March 28 to April 1, 1993. It details various facets of residue upgrading and distillate hydrotreating, stressing the importance of selective catalysts in aromatics reduction. New aromatics saturation processes for the production of very low-aromatic distillates are introduced.