Title:
芳香族のアルキル化を伴うオレフィンの重合によるガソリンの製造
Document Type and Number:
Japanese Patent JP4958800
Kind Code:
B2
Abstract:
A process for the production of high octane number gasoline from light refinery olefins, typically from the catalytic cracking unit, and benzene- containing aromatic streams such as reformate. A portion of the light olefins including ethylene and propylene is polymerized to form a gasoline boiling range product and another portion is used to alkylate the light aromatic stream. The alkylation step may be carried out in successive stages with an initial low temperature stage using a catalyst comprising an MWW zeolite followed by a higher temperature stage using a catalyst comprising an intermediate pore size zeolite such as ZSM-5. Using this staged approach, the alkylation may be carried out in the vapor phase. Alternatively, the alkylation may be carried out in the liquid phase using the heavier olefins (propylene, butene) dissolved into the aromatic stream by selective countercurrent extraction; a separate alkylation step using the ethylene not taken up in the extraction is carried out at a higher temperature.
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Inventors:
Umansky, Benjamin, Santiago
Clark, Michael, Christopher
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Application Number:
JP2007558158A
Publication Date:
June 20, 2012
Filing Date:
February 28, 2006
Export Citation:
Assignee:
EXXON RESEARCH AND ENGINEERING COMPANY
International Classes:
C10G63/06; C10G35/04; C10G50/00; C10L1/06
Domestic Patent References:
| JP2003500189A |
Foreign References:
| WO2004078681A1 | ||||
| WO2004076387A1 |
Attorney, Agent or Firm:
Kenji Kawabi