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I. Introduction II. Properties of Heavy Feeds III. Properties of Catalysts for Hydroprocessing Heavy Feeds IV. Selection of Reactors for Hydroprocessing Research V. Development and Testing of Catalysts VI. Hydroprocessing Reactions VII. Deactivation of Catalysts VIII. Selection of Catalysts for Commercial Hydroprocessing Reactors IX. Patent Literature on Hydroprocessing Catalysts and Reactors X. Spent Hydroprocessing Catalysts XI. Hydroprocessing of Vgo and Dao for Production of Lubricants XII. Non-Conventional Catalytic Upgrading of Heavy Feeds XIII. Residues Upgrading by Catalytic Cracking XIV. Carbon Rejecting Processes XV. Uncommon Processes XVI. Conclusions XVII. References
The book provides the most up-to-date information on testing and development of hydroprocessing catalysts with the aim to improve performance of the conventional and modified catalysts as well as to develop novel catalytic formulations. Besides diverse chemical composition, special attention is devoted to pore size and pore volume distribution of the catalysts. Properties of the catalysts are discussed in terms of their suitability for upgrading heavy feeds. For this purpose atmospheric residue was chosen as the base for defining other heavy feeds which comprise vacuum gas oil, deasphalted oil and vacuum residues in addition to topped heavy crude and bitumen. Attention is paid to deactivation with the aim to extent catalyst life during the operation. Into consideration is taken the loss of activity due to fouling, metal deposition, coke formed as the result of chemical reaction and poisoning by nitrogen bases. Mathematical models were reviewed focussing on those which can simulate performance of the commercial operations. Configurations of hydroprocessing reactors were compared in terms of their capability to upgrade various heavy feeds providing that a suitable catalyst was selected. Strategies for regeneration, utilization and disposal of spent hydroprocesing catalysts were evaluated. Potential of the non-conventional hydroprocessing involving soluble/dispersed catalysts and biocatalysts in comparison with conventional methods were assessed to identify issues which prevent commercial utilization of the former. A separate chapter is devoted to catalytic dewaxing because the structure of dewaxing catalysts is rather different than that of hydroprocessing catalysts, i.e., the objective of catalytic dewaxing is different than that of the conventional hydroprocessing, The relevant information in the scientific literature is complemented with the Patent literature covering the development of catalysts and novel reactor configurations.
Separate chapter was added to distinguish upgrading capabilities of the residues catalytic cracking processes from those employing hydroprocessing. Upper limits on the content of carbon residue and metals in the feeds which can still be upgraded by the former processes differ markedly from those in the feeds which can be upgraded by hydroprocessing. It is necessary that the costs of modifications of catalytic cracking processes to accommodate heavier feeds are compared with that of hydroprocessing methods.
Objective of the short chapter on upgrading by carbon rejecting processes was to identify limits of contaminants in heavy feeds beyond which catalytic upgrading via hydroprocessing becomes uneconomical because of the costs of catalyst inventory and that of reactors and equipment.
- Comprehensive and most recent information on hydroprocessing catalysts for upgrading heavy petroleum feeds.
- Compares conventional, modified and novel catalysts for upgrading a wide range of heavy petroleum feeds.
- Comparison of conventional with non-conventional hydroprocessing, the latter involving soluble/dispersed catalysts and biocatalysts.
- Development and comparison of mathematical models to simulate performance of catalytic reactors including most problematic feeds.
- Residues upgrading by catalytic cracking in comparison to hydroprocessing.
Researchers in petroleum research institutes and petroleum refining industries, graduate students and consultants in the petroleum industry.
- No. of pages:
- © Elsevier Science 2007
- 1st August 2007
- Elsevier Science
- Hardcover ISBN:
- eBook ISBN:
Dr. Furimsky has some forty years of research in the conversion of petroleum, coal and natural gas to various commercial products. The studies on upgrading petroleum feeds included hydrodesulfurization, hydrodenitrogenation, hydrodeoxygenation, catalyst deactivation and regeneration. The environmental and safety aspects as well as utilization options for spent refinery catalysts were part of the research as well. Scientific productivity includes two books, several book chapters and a dozen of reviews on various aspects of hydroprocessing catalysis, petroleum refining and utilization of refinery residues. Some 130 articles appeared in the referred scientific journals.
Research Scientific, IMAF Group, Canada
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