Oil extraction aids in grain processing

摘要

A method is provided for the use of a process additive system to improve the separation of oil from a process stream (whole stillage, thin stillage, or syrup) generated as a byproduct in grain to ethanol production.

主权项

1. A method for recovering oil from grain to ethanol production, the method comprising the addition of a process additive system to a process stream in a grain to ethanol production wherein the method comprises adding at least one chemical additive and at least one hydrophobic silica with particle size of at least 0.01 μm, wherein the total silica content of the process additive system is in an amount of from 3% to 50% by weight based on the weight of the process additive system and wherein the chemical additive comprises at least one functionalized polyol derived from a sorbitol, a sorbitan, isosorbide, sucrose, or glycerol.