PURIFICATION OF ISOPRENE FROM RENEWABLE RESOURCES

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...

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Main Authors MCAULIFFE, JOSEPH, C, KAN, JOHN, KALUEN, RODEWALD, STEPHAN, SABO, TIMOTHY, A, WONG, TANG, H, FEHER, FRANK, J, PICKERT, LAWRENCE, J, MCCALL, THOMAS, F, PLOETZ, CHRISTOPHER, D
Format Patent
LanguageEnglish
French
Published 12.04.2012
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Summary: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. L'invention porte sur des procédés et un appareil pour la purification d'isoprène, telle que la purification d'une composition de bioisoprène à partir d'un gaz d'échappement de fermenteur. L'appareil comprend deux colonnes qui traitent le gaz d'échappement de fermenteur, qui comprend de l'isoprène et diverses impuretés. Un solvant est ajouté au gaz d'échappement dans la première colonne, et l'isoprène est retiré du solvant par strippage dans la seconde colonne. L'invention porte également sur un procédé de purification supplémentaire en aval. L'invention porte aussi sur des compositions d'isoprène purifiées résultantes.
Bibliography:Application Number: WO2010US60552