Hydrodesulfurization of heavy residue oils over CoMo/aluminum borate catalysts

Y. W. Chen, M. C. Tsai, B. C. Kang, J. C. Wu, L. J. Leu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


A series of aluminum borate with various Al/B ratios were prepared by precipitation method at constant pH value. This material has a very narrow pore size distribution centered around the pore diameter of about 6 nm. It also has a large surface area and, therefore, can be used as a support for CoMo hydrodesulfurization catalysts. Hydrodesulfurization of heavy residual oils over CoMo/Aluminum borate was carried out in a trickle bed reactor at 663 K and 7600 kPa. Temperature-programmed-reduction method was used to monitor the CoMo-support interaction. The results show that the CoMo/Aluminum borate catalysts are much more active than the commercial catalysts such as GC-106 and 107 in the initial period. A correlation exists between the reducibility of the oxidic precursor catalysts and the HDS activity of the sulfided samples. The higher the reducibility, the higher is the HDS activity.

Original languageEnglish
Title of host publicationTar Sand and Oil Upgrading Technology
PublisherPubl by AIChE
Number of pages5
ISBN (Print)0816905479
StatePublished - 1991

Publication series

NameAIChE Symposium Series
ISSN (Print)0065-8812


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