Downstream process options for the ABE fermentation
Title | Downstream process options for the ABE fermentation |
Publication Type | Journal Article |
Year of Publication | 2016 |
Authors | Friedl A |
Journal | FEMS Microbiology Letters |
Volume | 363 |
Pagination | fnw073 |
Keywords | ABE fermentation, biobutanol, downstream process optimization, gas-stripping, liquid–liquid extraction, Pervaporation |
Abstract | Butanol is a very interesting substance both for the chemical industry and as a biofuel. The classical distillation process for the removal of butanol is far too energy demanding, at a factor of 220% of the energy content of butanol. Alternative separation processes studied are hybrid processes of gas-stripping, liquid–liquid extraction and pervaporation with distillation and a novel adsorption/drying/desorption hybrid process. Compared with the energy content of butanol, the resulting energy demand for butanol separation and concentration of optimized hybrid processes is 11%–22% for pervaporation/distillation and 11%–17% for liquid–liquid extraction/distillation. For a novel adsorption/drying/ desorption process, the energy demand is 9.4%. But all downstream process options need further proof of industrial applicability. |
URL | https://www.ncbi.nlm.nih.gov/pubmed/27020411 |
DOI | 10.1093/femsle/fnw073 |