Spherical catalysts to convert hydrocarbons to light olefins

Details Spherical catalysts to convert hydrocarbons to light olefins Spherical catalysts to convert hydrocarbons to light olefins

2008-01-01

2008-01-01

Dang, Thuan Dinh (Department: 1764)

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

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

C585S653000

Reexamination Certificate

active

07314963

ABSTRACT:
The present invention comprises a process for producing propylene comprising the steps of contacting an olefin feed containing between about 40 and about 80 wt-% olefins and between about 20 and about 60 wt-% olefins and aromatics with a spherical catalyst to form a cracked product, the catalyst comprising about 30 to about 80 wt-% of a crystalline zeolite, the reaction conditions including a temperature from about 500° to 650° C., a hydrocarbon partial pressure of 70 to 280 kPa (10 to 40 psia), a liquid hourly space velocity in the range of 5 to 40 hr−1and wherein propylene comprises at least 90 mol-% of the total C3products.

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