Patent · US Active

Method and apparatus for making acetic acid with improved light ends column productivity

US8173076B2 · kind B2 · utility

10Cited by

2References

4Claims

0Family size

Assignee

Celanese International Corporation · US

Inventors

Nathan Kirk Powell · Waxahachie, US
Nathan Jeremy Nagel · Houston, US
Fred Ronald Olsson · Port Aransas, US
Wayne David Picard · Houston, US
Ronald D. Shaver · Houston, US
Ismael Torres Tejeda · Seabrook, US

Key dates

Filing date	Jun 23, 2011
Grant date	May 8, 2012
Priority date	—
Expiry date	Jun 23, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C51/44
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An improved apparatus and method of producing acetic acid includes condensing overhead vapor to provide reflux to the light ends column as well as condensing vapor from a central portion of the light ends column to increase capacity. Throughput or load on the light ends column is substantially reduced without compromising product quality.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.