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:
Dec. 16, 2025
Filed:
Sep. 15, 2022
Korea Institute of Science and Technology, Seoul, KR;
Ung Lee, Seoul, KR;
Hyun Joo Lee, Seoul, KR;
Hong Gon Kim, Seoul, KR;
Kyeong Su Kim, Seoul, KR;
Jae Hyung Im, Seoul, KR;
He Won Lee, Seoul, KR;
Korea Institute of Science and Technology, Seoul, KR;
Abstract
Disclosed is a methanol and sulfuric acid co-production system capable of producing methanol and sulfuric acid in equal equivalents. Specifically, the system includes an oxidation reaction unit configured to produce methyl bisulfate (CHOSOH) by reacting methane gas with an acid solution in the presence of a catalyst, a reactive distillation unit disposed downstream of the oxidation reaction unit and configured to esterify methyl bisulfate (CHOSOH) supplied from the oxidation reaction unit with trifluoroacetic acid (CFCOOH) to obtain a product and to separate the product into methyl trifluoroacetate (CFCOOCH) and sulfuric acid (HSO) through thermal distillation, and a hydrolysis reaction unit disposed downstream of the reactive distillation unit and configured to produce methanol by hydrolyzing methyl trifluoroacetate (CFCOOCH) supplied from the reactive distillation unit, in which the reactive distillation unit recirculates the sulfuric acid resulting from separation to the oxidation reaction unit.