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. 07, 1999
Filed:
Jul. 17, 1998
Kazuto Kobayashi, Hiroshima, JP;
Hideaki Nagai, Tokyo, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Mitsubishi Chemical Company, Inc., Tokyo, JP;
Abstract
Provided is a methanol production process from hydrocarbon which lessens generation of waste water and reduces boiler water. Specifically, there are provided a methanol production process comprising the steps of (a) reacting hydrocarbon with steam to generate a synthesis gas containing hydrogen, carbon monoxide and carbon dioxide as main components, (b) reacting the synthesis gas on a methanol synthesis catalyst and recovering crude liquid methanol, and (c) distilling the recovered crude methanol into refined methanol and waste water, wherein the hydrocarbon comes in contact with the waste water neutralized with alkali metal salt or the like at the step (c) so as to be humidified, and comes in contact with condensed water separated from the synthetic gas obtained at the step (a) so as to be further humidified, and is then supplied to the step (a).