Residual-Oil Hydrotreating Kinetics for Graded Catalyst Systems: Effect of Original and Treated Feedstocks

Autor:	F. Maruyama, A. Marafi, Hamza Albazzaz, Antony Stanislaus, † and M. Absi-Halabi, Masoud Almarri
Rok vydání:	2003
Předmět:	Materials science General Chemical Engineering Residual oil Energy Engineering and Power Technology Catalysis law.invention Cracking Fuel Technology Chemical engineering law Hydrodenitrogenation Selectivity Hydrodesulfurization Distillation Asphaltene
Zdroj:	Energy & Fuels. 17:1191-1197
ISSN:	1520-5029 0887-0624
DOI:	10.1021/ef020282j
Popis:	In the upgrading of heavy petroleum oils and residues by hydrotreatment, multiple-reactor fixed-bed units loaded with different types of catalysts are used extensively. Catalysts for such hydrotreatment processes are chosen on the basis of activity, selectivity, and life. The performance of the overall hydrotreatment process, with regard to various reactions, such as hydrodesulfurization (HDS), hydrodenitrogenation (HDN), hydrodemetallization (HDM), asphaltenes cracking (HDAsph), and conversion to distillates, as well as catalyst life-on-stream, are clearly linked to the performance of the catalyst in different reactors. Information regarding the activity, selectivity, kinetic parameters, and deactivation of the individual catalysts are, therefore, highly desirable for optimizing reactor loading in the multiple-catalyst system. This paper presents the performance tests for various reactions on two types of industrial hydrotreating catalysts: those used at the midsection and the tail-end of a graded catal...
Databáze:	OpenAIRE
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