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.

Date of Patent:
Feb. 01, 2011

Filed:

Nov. 21, 2006
Applicants:

Wilbur Widmer, Winter Haven, FL (US);

David Stewart, Boca Raton, FL (US);

Karel Grohmann, Davenport, FL (US);

Mark Wilkins, Stillwater, OK (US);

Inventors:

Wilbur Widmer, Winter Haven, FL (US);

David Stewart, Boca Raton, FL (US);

Karel Grohmann, Davenport, FL (US);

Mark Wilkins, Stillwater, OK (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C 31/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

Method of pretreating citrus waste to break cell structure, pasteurize or sterilize citrus waste solids and remove inhibitory peel oil components (e.g., limonene) involving optionally reducing the particle size of the citrus waste prior to preheating, preheating the citrus waste through indirect heating in a preheater reactor to form preheated citrus waste and conveying the preheated citrus waste to a main reactor, heating the citrus waste through a combination of (simultaneous) indirect heating and direct heating to produce treated citrus waste solids that are pasteurized and a vapor containing water and peel oil components, separating the pasteurized citrus waste solids and the vapor containing water and peel oil components, and collecting the separated vapor containing water and peel oil components by condensation. The method optionally includes cooling the pasteurized citrus waste solids followed by saccharifying with enzymes and fermentation to produce ethanol or other products.


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