摘要
Abstract
As a potential platform compound,2,3-butanediol is used widely and can replace the traditional platforms——four carbon hydrocarbons.With the requirements of energy security and environmental protection,biological refinery of 2,3-butanediol have gained substantial interest due to its obvious advantages over the chemical method. However,due to the high boiling point and hydrophilicity of 2,3-butanediol,it is very difficult to be recovered from fermentation broth,which has become the bottle-neck of industrial production of 2,3-butanediol. Therefore,it is important to develop cost effective process to separate 2,3-butanediol. The progress is reviewed on the downstream processing of 2,3-butanediol fermentation. The process contains mainly three steps:solid-liquid separation,deep treatment of broth and purification of 2,3-butanediol. Many technologies have been involved,such as centrifugation,flocculation,membrane filtration,ion exchange,electrodialysis, extraction,distillation and so on,and their optimization and combinations. In the future,researchers should focus on the effective integration of existing technologies and development of new separation process.关键词
2,3-丁二醇/生物炼制/分离Key words
2,3-butanediol/bio-refinery/separation分类
化学化工
