Gasoline sulfur reduction in fluid catalytic cracking
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United States of America Patent
Stats
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Sep 28, 2010
Issued Date -
N/A
app pub date -
Apr 29, 2005
filing date -
Dec 28, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve as well as a cerium component which enhances the stability and sulfur reduction activity of the catalyst. The molecular sieve is normally a faujasite such as USY. The primary sulfur reduction component is normally a metal of Period 3 of the Periodic Table, preferably vanadium. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.
First Claim
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