Hydrotreating with silicon removal

Details Hydrotreating with silicon removal Hydrotreating with silicon removal

1991-04-30

1992-06-02

Morris, Theodore

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

208210, 208212, 208254R, 208254H, 208251R, C10G 4500

Patent

active

051184060

ABSTRACT:
A catalytic hydrotreating process wherein silicon-containing contaminants contained in a hydrocarbon feedstream are deposited onto a hydrotreating catalyst bed during hydrotreating in a manner providing improved catalyst stability. Hydrotreating catalysts having relatively high activities and low surface areas are located downstream of upstream hydrotreating catalysts having relatively low activities and high surface areas.

REFERENCES:
patent: 4176047 (1979-11-01), Orrell et al.
patent: 4645587 (1987-02-01), Kokayeff
patent: 4686030 (1987-08-01), Ward
patent: 4729826 (1988-03-01), Lindsay et al.
patent: 4776945 (1988-10-01), Washecheek et al.
patent: 4789462 (1988-12-01), Byrne et al.
patent: 4846961 (1989-07-01), Robinson et al.

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