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. 29, 2014
Filed:
Mar. 14, 2013
Applicant:
Veolia Water Solutions & Technologies North America Inc., Moon Township, PA (US);
Inventor:
Michael S. Begley, Lisle, IL (US);
Assignee:
Veolia Water Solutions & Technologies North America Inc., Moon Township, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21C 11/10 (2006.01); D21C 11/06 (2006.01); B01D 1/06 (2006.01); B01D 1/16 (2006.01); B01D 3/06 (2006.01);
U.S. Cl.
CPC ...
D21C 11/10 (2013.01); B01D 1/065 (2013.01); B01D 1/16 (2013.01); B01D 3/06 (2013.01);
Abstract
A wood pulping process includes producing weak black liquor and cooling the liquor as well as recovering heat therefrom by directing the weak black liquor through a spray film evaporator. A feed or condensate is directed into the spray film evaporator and the feed or condensate is sprayed onto the outer surfaces of a bundle of tubes. This results in the feed or the condensate being vaporized and producing a vapor that can be utilized as a heat source for other processes in a pulp mill.