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:
Sep. 01, 2015
Filed:
Dec. 12, 2011
Daniel P. Bjorklund, Waukesha, WI (US);
David Kersey, Frankfort, IL (US);
Gregory J. Mandigo, Crivitz, WI (US);
Chandrakant Tiwari, Oconomowoc, WI (US);
Daniel P. Bjorklund, Waukesha, WI (US);
David Kersey, Frankfort, IL (US);
Gregory J. Mandigo, Crivitz, WI (US);
Chandrakant Tiwari, Oconomowoc, WI (US);
AQUATECH INTERNATIONAL CORPORATION, Canonsburg, PA (US);
Abstract
A method for treatment of produced water, particularly deoiled water, by evaporation. Methods use a vertical tube heat exchanger bundle where the brine is distributed in a falling film along the inside of the tube wall. Condensing steam causes a portion of the deoiled water to evaporate; this water vapor travels upward in a counterflow direction relative to the deoiled water. Evaporator sump volume is minimized, and evaporators may have a multi-piece construction to lower the center of gravity of an evaporator installation. This technology provides several advantages over conventional vertical tube co-current flow evaporators (where the vapor flows downward with the falling film). These advantages include a minimal total installed cost (TIC) and enhanced water chemistry management.