Title:
メタノール製造方法及びメタノール製造装置
Document Type and Number:
Japanese Patent JP6835071
Kind Code:
B2
Abstract:
A method for producing methanol, allowing the temperature of the catalyst layer to fall within an appropriate temperature range, reducing the amount of energy used, and achieving a higher carbon yield. Specifically, provided is a method for producing methanol, wherein in a synthesis loop including at least two synthesis steps and two separation steps, a first mixed gas is obtained by mixing the final unreacted gas with a fraction of the make-up gas, methanol is synthesized from the first mixed gas after preheating, a first unreacted gas is separated from the obtained first reaction mixture, a final mixed gas is obtained by finally mixing the unreacted gas and a fraction of the make-up gas, the final mixed gas after preheating is further increased in pressure and then methanol is synthesized, a final unreacted gas is separated from the obtained final reaction mixture, and the reaction temperature of the catalyst layer is controlled by the indirect heat exchange with pressurized boiling water.
Inventors:
Kobe Satoshi
Kohei Uchida
Takuya Okamura
Daigo Hirakawa
Kohei Uchida
Takuya Okamura
Daigo Hirakawa
Application Number:
JP2018510615A
Publication Date:
February 24, 2021
Filing Date:
April 04, 2017
Export Citation:
Assignee:
Mitsubishi Gas Chemical Co., Ltd.
International Classes:
C07C29/152; C07C31/04
Domestic Patent References:
| JP5110210B1 | ||||
| JP2005125244A |
Foreign References:
| WO2006018610A1 | ||||
| CN103232321A |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Kazuhiko Naito
Toshifumi Onuki
Kazuhiko Naito