Method of dewatering thin stillage processing streams

Details Method of dewatering thin stillage processing streams Method of dewatering thin stillage processing streams

C - Chemistry, Metallurgy

02

F

C02F 1/56 (2006.01)

Patent

CA 2573296

A method dewatering thin stillage process streams generated in the processing of grain to ethanol comprising adding to the process streams an effective coagulating and flocculating amount of an anionic copolymer comprising acrylic acid sodium salt, methacrylic acid sodium salt or 2-acrylamido-2-methyl-l- propanesulfonic acid sodium salt to form a mixture of water and coagulated and flocculated solids; and separating the water from the coagulated and flocculated solids using a dewatering device.

L'invention concerne un procédé de déshydratation de flux de traitement de résidus solubles de distillation générés dans la transformation de grain en éthanol, qui consiste à ajouter aux flux de traitement une quantité coagulante et flocculante d'un copolymère anionique comprenant du sel de sodium d'acide acrylique, du sel de sodium d'acide méthacrylique ou du sel de sodium d'acide 2-acrylamido-2-méthyl-l-propanesulfonique pour former un mélange d'eau et de solides coagulés et flocculés ; et à séparer l'eau des solides coagulés et flocculés au moyen d'un dispositif de déshydratation.

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