06538169 is referenced by 83 patents and cites 3 patents.

An FCC process for obtaining light olefins comprises contacting a hydrocarbon feed stream with blended catalyst comprising regenerated catalyst and coked catalyst. The catalyst has a composition including a first component and a second component. The second component comprises a zeolite with no greater than medium pore size wherein the zeolite comprises at least 1 wt-% of the catalyst composition. The contacting occurs in a riser to crack hydrocarbons in the feed stream and obtain a cracked stream containing hydrocarbon products including light olefins and coked catalyst. The cracked stream is passed out of an end of the riser such that the hydrocarbon feed stream is in contact with the blended catalyst in the riser for less than or equal to 2 seconds on average.

Title
FCC process with improved yield of light olefins
Application Number
9/711576
Publication Number
6538169 (B1)
Application Date
November 13, 2000
Publication Date
March 25, 2003
Inventor
Lawrence L Upson
Barrington
IL, US
Rusty M Pittman
Chicago
IL, US
Agent
James C Paschall
US
John G Tolomei
US
Assignee
UOP
IL, US
IPC
C07C 4/06
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