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公开(公告)号:US09751820B2
公开(公告)日:2017-09-05
申请号:US14682930
申请日:2015-04-09
发明人: Frank J. Feher , John Kaluen Kan , Joseph C. McAuliffe , Thomas F. McCall , Lawrence J. Pickert , Christopher D. Ploetz , Stephan Rodewald , Timothy A. Sabo , Tang H. Wong
CPC分类号: C07C11/18 , B01D11/0426 , B01D11/0492 , C07C7/04 , C07C7/10
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.