Process for reducing the benzene content of gasoline

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United States of America Patent

PATENT NO 9199891
APP PUB NO 20130324776A1
SERIAL NO

13982964

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Abstract

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A process is disclosed for alkylating benzene contained in a benzene-containing refinery gasoline stream also comprising at least 0.1 wt % of at least one C6 to C8 olefin. In the process, the refinery gasoline stream is contacted under alkylation conditions with an alkylating agent selected from one or more C2 to C5 olefins in at least a first alkylation reaction zone and a second alkylation reaction zone connected in series to produce an alkylated effluent, which has reduced benzene content as compared with said refinery gasoline stream. All of the refinery gasoline stream is introduced into the first alkylation reaction stage, whereas an aliquot of the alkylated effluent is recycled and introduced to the second, but not the first, alkylation reaction zone.

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Patent Owner(s)

Patent OwnerAddress
BADGER LICENSING LLCONE FINANCIAL CENTER BOSTON MA 02111

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Birkhoff, Ronald Houston, US 10 21
Guarino, Richard F Fairhaven, US 6 21
Hwang, Shyh-Yuan H Needham, US 9 6
Moy, J Erik South Grafton, US 4 3
Peters, Joseph C Quincy, US 9 33

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