Celanese International Corporation

Gerald Gruesendorf

Victor J Johnston

R Jay Warner

Radmila Jevtic

Heiko Weiner

Lincoln Sarager

Trinity Horton

Nathan Kirk Powell

Fred Ronald Olsson

Al Amleh

Samuel Roundy

Murray Viard

A denatured fuel ethanol composition for blending with fuels, including gasoline and diesel fuel. The composition includes an ethanol composition comprising at least 92 wt. % ethanol; and from 95 wppm to 1,000 wppm isopropanol; and at least 1.96 vol. % fuel denaturant.

Denatured fuel ethanol compositions for blending with gasoline or diesel fuel for use as motor fuels

Ethanol production from the hydrogenation of acetic acid requires energy to drive the hydrogenation reaction and the purification of the crude ethanol product. Heat integration process to recover heat from one part of the production process to be used within the process improves efficiencies and reduces costs.

Process for heat integration for ethanol production and purification process

Vaporizing acetic acid in the presence of hydrogen to provide a vapor feed stream for a hydrogenation process that produces ethanol. The vaporizer forms a vapor feed stream and a blowdown stream having a weight ratio of the vapor feed stream to the blowdown stream of at least 2:1. The acetic acid may vaporized at a temperature below acetic acid's boiling point at the operating pressure of the reactor. The hydrogenation process produces a crude ethanol product and ethanol is separated from the crude product. In addition, at least one recycle stream comprising acetic acid and less than 1.0 wt. % compounds having a boiling point higher than acetic acid, may also be separated. The recycle streams may be introduced to the vaporizer along with acetic acid to form the vapor feed stream.

Process for vaporizing acetic acid for hydrogenation processes to produce ethanol

Growing community of inventors

Rosharon, TX, United States of America

Gerald Gruesendorf