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:
May. 23, 2023
Filed:
Dec. 08, 2020
Applicant:
Nlb Water, Llc, Denver, CO (US);
Inventor:
Ernst Schmidt, Knoxville, TN (US);
Assignee:
NLB Water, LLC, Denver, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 9/00 (2023.01); B01D 61/04 (2006.01); B01D 61/58 (2006.01); C02F 1/40 (2023.01); C02F 1/44 (2023.01); C02F 1/66 (2023.01); C02F 1/52 (2023.01); C02F 1/76 (2023.01); C02F 101/32 (2006.01); C02F 103/36 (2006.01); C02F 1/469 (2023.01); B01D 61/42 (2006.01); B01D 61/44 (2006.01); B01D 61/14 (2006.01); B01D 61/02 (2006.01); C02F 1/467 (2023.01);
U.S. Cl.
CPC ...
C02F 9/00 (2013.01); B01D 61/04 (2013.01); B01D 61/58 (2013.01); B01D 61/025 (2013.01); B01D 61/026 (2022.08); B01D 61/147 (2013.01); B01D 61/422 (2013.01); B01D 61/445 (2013.01); B01D 2311/04 (2013.01); B01D 2311/06 (2013.01); B01D 2311/08 (2013.01); B01D 2311/18 (2013.01); B01D 2311/25 (2013.01); B01D 2311/268 (2013.01); B01D 2311/2626 (2013.01); B01D 2311/2634 (2013.01); B01D 2311/2642 (2013.01); B01D 2311/2669 (2013.01); B01D 2311/2673 (2013.01); C02F 1/40 (2013.01); C02F 1/441 (2013.01); C02F 1/442 (2013.01); C02F 1/444 (2013.01); C02F 1/4672 (2013.01); C02F 1/4693 (2013.01); C02F 1/5245 (2013.01); C02F 1/66 (2013.01); C02F 1/76 (2013.01); C02F 2101/32 (2013.01); C02F 2101/322 (2013.01); C02F 2103/365 (2013.01); C02F 2303/16 (2013.01);
Abstract
An integrated, membrane-based process to produce purified water and conversion of salt to high value chemicals from oil and gas well produced water is described. A liquid stream including water and dissolved salt is flowed through pretreatment units and one or more desalination and concentration units which remove at least a portion of the water to form a brine enriched in dissolved salt. The purified high-density brine may be subjected to electrically-enforced salt dissociation techniques to produce chemicals from oil and gas produced water.