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:
Apr. 07, 2015
Filed:
Aug. 15, 2013
Frederick J Schendel, Oakdale, MN (US);
Marc Von Keitz, Minneapolis, MN (US);
Kenneth J Valentas, Golden Valley, MN (US);
Steven M Heilmann, Afton, MN (US);
Lindsey R Jader, Maplewood, MN (US);
Brandon M Wood, Menomonie, WI (US);
Frederick J Schendel, Oakdale, MN (US);
Marc von Keitz, Minneapolis, MN (US);
Kenneth J Valentas, Golden Valley, MN (US);
Steven M Heilmann, Afton, MN (US);
Lindsey R Jader, Maplewood, MN (US);
Brandon M Wood, Menomonie, WI (US);
Other;
Abstract
The present invention concerns a process for producing synthetic coal and aqueous liquid plant fertilizing solution products from a fermentation residue such as is left over from the corn based process of producing ethanol. The synthetic coal has a high heat value commensurate with naturally occurring coals and is lower in ash and sulfur content and thus has value as a clean burning energy source. The aqueous fertilizer includes commercially useful amounts of phosphorous, potassium and nitrogen in solution. The process of the invention is also energy efficient in that the products produced thereby involve the use of substantially less energy as compared to the traditional methods of processing fermentation residues in the corn based ethanol production industry.