METHODS AND COMPOSITIONS FOR IMPROVING OIL RECOVERY IN CORN PROCESSING

摘要

Methods and composition are provided for recovering oil from an oil containing mixture or emulsion. The invention is particularly applicable for recovery of oil from corn in a corn to oil process. The process and compositions comprise a combination of two non-ionic surfactants i) and ii). The non-ionic surfactant i) is a non- ionic surfactant comprising a polyol derived from a sorbitol, a sorbitan, or isosorbide. The non-ionic surfactant ii) is an ester of a) polyethylene glycol and b) a fatty acid. In accordance with the methods, the combination of surfactants i) and ii) is brought into contact with a process stream mixture existing in a corn to ethanol process.