Title:
METHANOL PRODUCTION METHOD AND METHANOL PRODUCTION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2016/063872
Kind Code:
A1
Abstract:
Provided is a methanol production method having a synthesis step in which methanol is synthesized from a synthesis gas and a separation step in which an unreacted gas is separated from a reaction mixture obtained through the synthesis step, the method including, in a synthesis loop having at least two of the synthesis steps and at least two of the separation steps: a step in which the pressure of a remaining gas that is obtained by removing a purge gas from a final unreacted gas, which is separated from a final reaction mixture in the separation step after a final synthesis step, is raised by a circulator, and the remaining gas is mixed with a part of a makeup gas to obtain a first mixture gas; a step in which methanol is synthesized from the first mixture gas; a step in which a first unreacted gas is separated from the first reaction mixture obtained in the previous step; a step in which the first unreacted gas and a part of the makeup gas are mixed to obtain a second mixture gas; the final synthesis step in which methanol is finally synthesized; and a step in which a final unreacted gas is separated from the final reaction mixture obtained in the previous step. At least in the final synthesis step, the reaction temperature of a catalyst layer is controlled by indirect heat exchange with pressurized boiling water.
Inventors:
KAMBE YASUAKI (JP)
UCHIDA KOHEI (JP)
WATANABE HIROSHI (JP)
HIRAKAWA DAIGO (JP)
HASEGAWA TATSUYA (JP)
UCHIDA KOHEI (JP)
WATANABE HIROSHI (JP)
HIRAKAWA DAIGO (JP)
HASEGAWA TATSUYA (JP)
Application Number:
PCT/JP2015/079580
Publication Date:
April 28, 2016
Filing Date:
October 20, 2015
Export Citation:
Assignee:
MITSUBISHI GAS CHEMICAL CO (JP)
International Classes:
C07C29/152; B01J23/80; B01J37/00; B01J37/03; C07C31/04; C07B61/00
Domestic Patent References:
| WO2011048976A1 | 2011-04-28 | |||
| WO2014012601A1 | 2014-01-23 | |||
| WO2006018610A1 | 2006-02-23 |
Foreign References:
| JPS5110210B2 | 1976-04-02 | |||
| JP2002515467A | 2002-05-28 | |||
| JPS5144715B2 | 1976-11-30 | |||
| JPH08299796A | 1996-11-19 |
Other References:
See also references of EP 3210961A4
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
Yoshiyuki Inaba (JP)
Yoshiyuki Inaba (JP)
Download PDF: