Treatment of Alkylation Catalyst Poisons
AssigneeFina Technology, Inc.
InventorsJames R. Butler, Jim Merrill, Marcus Ledoux, Michael Betbeze
Life of this patent
Estimating the term…
Abstract
Alkylation processes are described herein. The alkylation process generally includes contacting an input stream including benzene with an alkylation catalyst and an alkylating agent to form an alkylation output stream including ethylbenzene. The alkylation process further includes contacting at least a portion of the alkylation output stream with a transalkylation catalyst and a benzene source to form a transalkylation output stream, wherein the benzene source is selected to minimize the amount of alkylation catalyst poisons contacting the alkylation catalyst.
Claims9
An alkylation process comprising:
- contacting an input stream comprising benzene with an alkylation catalyst and an alkylating agent to form an alkylation output stream comprising ethylbenzene;
- contacting at least a portion of the alkylation output stream with a transalkylation catalyst and a benzene source to form a transalkylation output stream, wherein at least a portion of the benzene source is supplied by the output of a dehydrogenation process;
- recycling at least a portion of the transalkylation output stream to contact the alkylation catalyst in the presence of the input stream;
- and
- regenerating at least a portion of the transalkylation catalyst.
Dependencies are inferred from the claim text.