| 摘要 |
<p>This invention relates to processes and apparatus for the manufacture of ethanol, glycerol, succinic acid and a free flowing distiller's dry grain and solubles useful as an animal feed. In accordance with the processes disclosed, production of glycerol and succinic acid during a biomass fermentation and distillation process for producing ethanol is enhanced by selection of certain defined, favorable process variables such as immobilization of yeast cells, yeast cell concentration, pH and osmotic pressure. Glycerol and succinic acid is then recovered by processing the mash to clarify it and then separate by ion exclusion techniques then purifying the desired by-product constituents.</p> |
