Hydroprocessing of Heavy Oils and Residua
Jorge Ancheyta, James G. Speight
CRC Press, May 8, 2007 - Science - 376 pages
Many oil refineries employ hydroprocessing for removing sulfur and other impurities from petroleum feedstocks. Capable of handling heavier feedstocks than other refining techniques, hydroprocessing enables refineries to produce higher quality products from unconventional — and formerly wasted — sources. Hydroprocessing of Heavy Oils and Residua illustrates how to obtain maximum yields of high-value products from heavy oils and residue using hydroprocessing technologies.
While most resources on hydroprocessing concentrate ongas oil and lower boiling products, this book details the chemistry involved and the process modifications required for the hydroprocessing of heavy crude oils and residua. Emphasizing the use of effective catalysts to ensure cleaner and more efficient industrial fuel processes, the book presents key principles of heterogeneous catalyst preparation, catalyst loading, and reactor systems. It explains how to evaluate and account for catalysts, reactor type, process variables, feedstock type, and feedstock composition in the design of hydroprocessing operations. The text concludes with examples of commercial processes and discusses methods of hydrogen production.
To meet the growing demand for transportation fuels and fuel oil, modern oil refineries must find ways to produce high quality fuel products from increasingly heavy feedstocks. Hydroprocessing of Heavy Oils and Residua contains the fundamental concepts, technologies, and process modifications refineries need to adapt current hydroprocessing technologies for processing heavier feedstocks.
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On the other hand, heavy oils and residua are generally considered to be
lowvalue feedstocks by the refining industry. Hence, they are the focus of many
conversion scenarios. Indeed, there has been a tendency for the quality of crude
Indeed, processing heavy oils and residua presents several problems that are
not found with distillate processing and that require process modifications to meet
the special requirements necessary for heavy feedstock desulfurization.
... S. Rana, and Jorge Ancheyta Chapter 7 Maya Heavy Crude Oil
Hydroprocessing Catalysts...................191 Mohan S. Rana, S.K. Maity, and Jorge
Ancheyta Chapter 8 Effect of Feedstock Composition on the Performance of
heavy feedstocks (Schabron and Speight, 1996). The evaluation schemes do not
need to ... Subsequent analysis of the fractions also provides further information
about the processability of the feedstock. In this follow-on analysis, there is often
processing sequence to convert a heavy feedstock to liquid products is even
more important. To satisfy specific needs with regard to the type of petroleum to
be processed, as well as to the nature of the product, most refiners have, through
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Chapter 4 Thermodynamics of Hydroprocessing Reactions
Chapter 5 Reactors for Hydroprocessing
Chapter 6 Characteristics of Heavy Oil Hydroprocessing Catalysts
Chapter 7 Maya Heavy Crude Oil Hydroprocessing Catalysts
Chapter 8 Effect of Feedstock Composition on the Performance of Hydroconversion Catalysts
Chapter 9 Hydroprocesses
Chapter 10 Commercial Hydrotreating and Hydrocracking
Chapter 11 Hydrogen Production