The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 2017
Filed:
Nov. 19, 2010
John H. Collins, Bloomingdale, IL (US);
David W. Scheimann, Joliet, IL (US);
Jason S. Van't Hul, Harrisburg, SD (US);
Philip M. Eastin, Saint Louis, MO (US);
John H. Collins, Bloomingdale, IL (US);
David W. Scheimann, Joliet, IL (US);
Jason S. Van't Hul, Harrisburg, SD (US);
Philip M. Eastin, Saint Louis, MO (US);
Nalco Company, Naperville, IL (US);
Abstract
A method of processing thin stillage in an ethanol refining operation is provided. The method comprises treating thin stillage upstream of a concentration or evaporation step with an inverse emulsion comprising at least one anionic flocculant and an emulsifying agent selected from a sorbitan ester of a fatty acid, an ethoxylated sorbitan ester of a fatty acid, and combinations thereof, thereby forming treated thin stillage; clarifying the treated thin stillage via at least one of dissolved air flotation and induced air flotation, thereby forming clarified thin stillage and a float layer comprising oil and solids; separating the oil from the solids of the float layer; and recovering the oil.