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:
Jan. 25, 2005
Filed:
Oct. 09, 2003
Daniel Marcel Thiebaut, Lescar, FR;
Daniel Marcel Thiebaut, Lescar, FR;
Acetex (Cyprus) Limited, Limassol, CY;
Abstract
An integrated large capacity, single-train process for making 1,00020,000 MTPD methanol and 3006,000 MTPD acetic acid is disclosed. Syngasis produced by autothermal reformingof natural gaswhere the feedof the natural gas is supplied with oxygen and CO2 recycleto the autothermal reformer (ATR). A portion (5-50%) of the syngas is fed to CO2 removalto obtain the recycle CO2 and cold boxto obtain a hydrogen streamand a CO stream. The 50-95% remaining syngas, hydrogen streamand optionally any CO2 from an associated process are fed to methanol synthesis, which produces the methanol. The methanol is supplied to an acetic acid unitwith the COto make the acetic acid, which in turn can be supplied to a VAM synthesis unit. Oxygen for the ATR and any VAM synthesis can be supplied by a single common air separation unit, and utilities such as steam generation can further integrate the process.