PROCESS FOR THE PRODUCTION OF ETHANOL BY HYDROGENATION OF VAPORIZED ACETIC ACID
摘要
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.
申请公布号
HK1169647(A1)
申请公布日期
2014.10.10
申请号
HK20120110380
申请日期
2012.10.18
申请人
CELANESE INTERNATIONAL CORPORATION
发明人
HORTON, TRINITY T;JEVTIC, RADMILA R;JOHNSTON, VICTOR J. VJ;WARNER, R. JAY RJ;WEINER, HEIKO H;AMLEH, WAEL W;GRUSENDORF, GERALD G