发明名称 |
PURIFICATION OF ISOPRENE FROM RENEWABLE RESOURCES |
摘要 |
Methods and apparatus for the purification of isoprene, such as the purification of a bioisoprene composition from fermentor off-gas. The apparatus includes two columns that process the fermentor off-gas, which includes isoprene and various impurities. A solvent is added to the off-gas in the first column, and the isoprene is stripped from the solvent in the second column. Also provided is a downstream further purification process. Also provided are the resulting purified isoprene compositions. |
申请公布号 |
US2014187839(A1) |
申请公布日期 |
2014.07.03 |
申请号 |
US201314035746 |
申请日期 |
2013.09.24 |
申请人 |
The Goodyear Tire & Rubber Company ;Danisco US Inc. |
发明人 |
FEHER Frank J.;KAN John Kaluen;MCAULIFFE Joseph C.;MCCALL Thomas F.;PICKERT Lawrence J.;PLOETZ Christopher D.;RODEWALD Stephan;SABO Timothy A.;WONG Tang H. |
分类号 |
C07C7/10 |
主分类号 |
C07C7/10 |
代理机构 |
|
代理人 |
|
主权项 |
1. A method of purifying isoprene from a fermentor off-gas comprising:
contacting a fermentor off-gas comprising isoprene, volatile impurity, and bio-byproduct impurity, with a solvent in a first column to form: an isoprene-rich solution comprising the solvent, a major portion of the isoprene and a major portion of the bio-byproduct impurity present in the off-gas; and a vapor comprising a portion of the volatile impurity present in the off-gas; transferring the isoprene-rich solution from the first column to a second column; and stripping isoprene from the isoprene-rich solution in the second column to form: an isoprene-lean solution comprising a portion of the bio-byproduct impurity present in the off-gas; and a purified isoprene composition. |
地址 |
Akron OH US |