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:
Jul. 02, 2019
Filed:
May. 03, 2016
Applicant:
Veolia Water Technologies, Inc., Moon Township, PA (US);
Inventors:
Assignee:
Veolia Water Technologies, Inc., Moon Township, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/24 (2006.01); E21B 43/40 (2006.01); B01D 19/00 (2006.01); C02F 9/00 (2006.01); C02F 1/20 (2006.01); C02F 1/04 (2006.01); C02F 101/10 (2006.01); C02F 1/40 (2006.01); C02F 1/66 (2006.01);
U.S. Cl.
CPC ...
E21B 43/24 (2013.01); B01D 19/001 (2013.01); B01D 19/0005 (2013.01); B01D 19/0036 (2013.01); B01D 19/0063 (2013.01); C02F 9/00 (2013.01); E21B 43/40 (2013.01); C02F 1/048 (2013.01); C02F 1/20 (2013.01); C02F 1/40 (2013.01); C02F 1/66 (2013.01); C02F 2101/10 (2013.01); C02F 2101/101 (2013.01); C02F 2301/063 (2013.01);
Abstract
A method for treating produced water or a feedwater stream with an evaporator. The feedwater stream or produced water is directed to and through a deaerator located upstream of the evaporator. Steam produced by the evaporator is utilized to strip dissolved gases from the produced water or feedwater stream passing through the deaerator. To efficiently strip dissolved gases, the vapor pressure in the deaerator is maintained at below atmospheric pressure and the produced water or feedwater stream is heated to a temperature greater than the saturated vapor temperature in the deaerator.