The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 11, 2020
Filed:
Apr. 04, 2017
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Yasuaki Kambe, Niigata, JP;
Kohei Uchida, Niigata, JP;
Takuya Okamura, Niigata, JP;
Daigo Hirakawa, Niigata, JP;
MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo, JP;
Abstract
A method for producing methanol allows the temperature of the catalyst layer to fall within an appropriate temperature range, reduces energy used, and achieves higher carbon yield. 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.