Asphaltenes

Author: Jorge Ancheyta
Publisher: CRC Press
ISBN: 1420066315
Format: PDF, ePub
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During the upgrading of heavy petroleum, asphaltene is the most problematic impurity since it is the main cause of catalyst deactivation and sediments formation. Exploring many aspects related to asphaltenes composition and conversion, Asphaltenes: Chemical Transformation during Hydroprocessing of Heavy Oils highlights the various changes that these heavy and complex molecules undergo during catalytic hydroprocessing. After defining and characterizing asphaltene structure, the book examines the composition of petroleum and the processes and catalysts for upgrading heavy oils. It then details the characterization of asphaltenes after hydroprocessing and the effect of reaction conditions on their structures. The authors also analyze the deactivation and characterization of spent hydroprocessing catalysts as well as the role played by asphaltenes. They cover sediments formation during hydroprocessing and the role of asphaltenes on it. The final chapters describe the hydrocracking and kinetics of asphaltenes and the fractionation of heavy crudes and asphaltenes. Due to the increasing production of heavy crude oils, asphaltene has become one of the most studied molecules. This book provides a deep understanding of how asphaltenes transform during hydroprocessing, offering insight on designing catalysts and processing for the upgrading of heavy oils.

The Chemistry and Technology of Petroleum

Author:
Publisher: CRC Press
ISBN: 1439873909
Format: PDF, Mobi
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With demand for petroleum products increasing worldwide, there is a tendency for existing refineries to seek new approaches to optimize efficiency and throughput. In addition, changes in product specifications due to environmental regulations greatly influence the development of petroleum refining technologies. These factors underlie the need for t

Synthetics Mineral Oils and Bio Based Lubricants

Author: Leslie R. Rudnick
Publisher: CRC Press
ISBN: 1439855382
Format: PDF, ePub, Docs
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Highlighting the major economic and industrial changes in the lubrication industry since the first edition, Synthetics, Mineral Oils, and Bio-Based Lubricants, Second Edition outlines the state of the art in each major lubricant application area. Chapters cover trends in the major industries, such as the use of lubricant fluids, growth or decline of market areas and applications, potential new applications, production capacities, and regulatory issues, including biodegradability, toxicity, and food production equipment lubrication. In a single, unique volume, Synthetics, Mineral Oils, and Bio-Based Lubricants, Second Edition offers property and performance information of fluids, theoretical and practical background to their current applications, and strong indicators for global market trends that will influence the industry for years to come.

Deactivation of Heavy Oil Hydroprocessing Catalysts

Author: Jorge Ancheyta
Publisher: John Wiley & Sons
ISBN: 1118769848
Format: PDF, Docs
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Written by a scientist 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. Deactivation of Heavy Oil Hydroprocessing Catalysts offers a rigorous exploration of a wide range of topics in the field, including 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; and laboratory and commercial information for model validations. The content demonstrates how to develop correlations and models for a variety of reaction scales with step-by-step descriptions and detailed experimental data. It also contains important implications for increasing operational efficiencies within the petroleum industry. With in-depth explanations of models and mechanisms not found in other literature, Deactivation of Heavy Oil Hydroprocessing Catalysts is an essential reference that industry researchers and engineering students will turn to again and again. Serves as a complete guide to catalyst activity loss during the hydroprocessing of heavy oils, written by a scientist with more than 25 years of experience in the field 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 Offers an essential reference for professionals and researchers working in the refining industry, as well as students taking courses on chemical reaction engineering

Heavy Hydrocarbon Resources

Author: Masakatsu Nomura
Publisher: Amer Chemical Society
ISBN:
Format: PDF, ePub, Mobi
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This book discusses recent research and developments related to characterization and utilization of petroleum-derived asphaltenes. Chapters cover computer simulation of physical density and thermal properties, precise measurements of molecular weights of asphaltene, estimation of structural parameter distribution, characterization of refractory sulfur compounds, hydrotreatment, cracking, visbreaking, and coking reactivities. In petroleum industries, heavy petroleum residue due to enhanced oil recovery is becoming a serious problem. Heavy oils cause problems during oil production and refining processes. Increased viscosities reduce, or even stop, the flow of oil during oil production. Meanwhile in refining processes, their undesired precipitation, high tendency to form coke, and catalyst deactivation and poisoning should be involved.

Process Chemistry of Petroleum Macromolecules

Author: Irwin A. Wiehe
Publisher: CRC Press
ISBN: 1420018337
Format: PDF, Kindle
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Although there is a shortage of light petroleum, there is plenty of heavy petroleum rich in macromolecules available, creating an increasing interest for processes that can convert heavy oils to light oils. Process Chemistry of Petroleum Macromolecules provides the scientific basis for such processes, presenting methods to determine improvement potential. Topics include characterization, thermal kinetics, phase behavior, and separation. Revealing that the science of petroleum macromolecules is simpler and more exciting than imagined, it also discusses macromolecules that self-associate, liquid crystalline phases, reactions triggered by phase separation, and both dispersed and dissolved solutes.