METHODS AND SYSTEMS FOR IMPROVING FERMENTATION EFFICIENCY

摘要

Processes, as well as associated systems, are disclosed for biological conversion of CO into desired end products such as ethanol and 2,3-butanediol. The pre-treatment of industrial gas streams comprising CO, such that the level of contaminants selected from the group comprising benzene, toluene, xylene and ethylbenzene, are maintained below a predetermined liquid level in the fermentation broth, has been shown to have positive effects on the fermentation process.