Production of olefins

Details Production of olefins Production of olefins

1991-04-26

1992-12-15

Garvin, Patrick P.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By c content reduction, e.g., cracking, etc.

C07C 402

Patent

active

051719215

ABSTRACT:
A steam activated catalyst containing phosphorus and H-ZSM-5 may be used to convert higher hydrocarbons to lower olefins, especially ethylene, propylene, butylenes and pentenes at a preferred temperature range of 500.degree. to 700.degree. C. and a preferred WHSV range of 10 to 1000 hr..sup.-1. Catalysts containing H-ZSM-5 with surface Si/Al ratios of 20 to 60 were found to undergo steam activation more readily and achieve higher activity than those catalysts which contained H-ZSM-5 with surface Si/Al ratios greater than 60.

REFERENCES:
patent: 4044065 (1977-08-01), Butter et al.
patent: 4356338 (1982-10-01), Young
patent: 4423266 (1983-12-01), Young

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