Title:
PROPYLENE VIA METATHESIS WITH LOW OR NO ETHYLENE
Document Type and Number:
Japanese Patent JP2017160246
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing propylene via metathesis, with low or no new ethylene.SOLUTION: This invention relates to a method for producing propylene, including: fractionating a mixed C4 hydrocarbon stream to recover a first fraction comprising isobutene and a second fraction comprising 2-butene; bringing the first fraction into contact with a first metathesis catalyst in a first metathesis reaction zone; recovering an effluent from the first metathesis reaction zone comprising at least one of ethylene, propylene, unreacted isobutene, C5 olefins, and C6 olefins; bringing the second fraction and the ethylene in the effluent into contact with a second metathesis catalyst in a second metathesis reaction zone; recovering an effluent from the second reaction zone comprising at least one of unreacted ethylene, propylene, unreacted 2-butene; and fractionating the effluent from the first metathesis reaction zone and the effluent from the second metathesis reaction zone to recover an ethylene fraction, a propylene fraction, one or more C4 fractions, and a fraction comprising at least one of C5 and C6 olefins.SELECTED DRAWING: None
Inventors:
STEPHEN J STANLEY
ROBERT J GARTSIDE
THULUSIDAS CHELLPPANNAIR
ROBERT J GARTSIDE
THULUSIDAS CHELLPPANNAIR
Application Number:
JP2017092832A
Publication Date:
September 14, 2017
Filing Date:
May 09, 2017
Export Citation:
Assignee:
LUMMUS TECHNOLOGY INC
International Classes:
C07C6/04; C07C11/06
Domestic Patent References:
| JP2012500304A | 2012-01-05 | |||
| JP2008519033A | 2008-06-05 | |||
| JP2012502057A | 2012-01-26 | |||
| JP2005519131A | 2005-06-30 | |||
| JP2007531696A | 2007-11-08 | |||
| JP2012520348A | 2012-09-06 | |||
| JP2011098923A | 2011-05-19 | |||
| JP2004502745A | 2004-01-29 |
Attorney, Agent or Firm:
Patent business corporation Tsukuni