公开(公告)号：US10399880B2

公开(公告)日：2019-09-03

申请号：US15902090

申请日：2018-02-22

Applicant: Chevron U.S.A. Inc.

Inventor： Prakhar Prakash ,  Gini Yash Shah ,  Evan Shigeto Hatakeyama

IPC: C02F9/00 ,  B01D61/36 ,  B01D61/02 ,  B01D61/14 ,  B01D61/58 ,  B01D61/04 ,  B01D61/16 ,  C02F1/44 ,  C02F1/42 ,  C02F1/20 ,  C02F1/463 ,  C02F1/465 ,  C02F1/24

Abstract: A system for treating high temperature produced water includes an electrocoagulation unit, a membrane distillation unit in communication with the outlet of the electrocoagulation unit having a hydrophobic membrane with a feed side for receiving the produced water stream and a product side for receiving a deionized water stream. A heat recovery heat exchanger is in communication with the membrane distillation unit for receiving two streams, one from each side of the hydrophobic membrane, such that heat is exchanged between the two streams. A line leaving the heat exchanger returns a heated stream from the heat exchanger to a location in a line upstream of the membrane distillation unit. A brine tank in communication with the membrane distillation unit receives a portion of a stream from the membrane product side and contains a concentrated brine solution containing the portion of the stream from the membrane product side and sodium chloride.

公开(公告)号：US20180179096A1

公开(公告)日：2018-06-28

申请号：US15902090

申请日：2018-02-22

Applicant: Chevron U.S.A. Inc.

Inventor： Prakhar Prakash ,  Gini Yash Shah ,  Evan Shigeto Hatakeyama

IPC: C02F9/00

CPC classification number: C02F9/00 ,  B01D61/025 ,  B01D61/04 ,  B01D61/145 ,  B01D61/147 ,  B01D61/16 ,  B01D61/364 ,  B01D61/58 ,  B01D2311/04 ,  B01D2311/06 ,  B01D2311/10 ,  B01D2311/25 ,  C02F1/20 ,  C02F1/24 ,  C02F1/42 ,  C02F1/441 ,  C02F1/444 ,  C02F1/447 ,  C02F1/463 ,  C02F1/465 ,  C02F2001/425 ,  C02F2303/16 ,  Y02A20/131 ,  B01D2311/12 ,  B01D2311/18 ,  B01D2311/2642 ,  B01D2311/26 ,  B01D2311/2623

Abstract: A system for treating high temperature produced water includes an electrocoagulation unit, a membrane distillation unit in communication with the outlet of the electrocoagulation unit having a hydrophobic membrane with a feed side for receiving the produced water stream and a product side for receiving a deionized water stream. A heat recovery heat exchanger is in communication with the membrane distillation unit for receiving two streams, one from each side of the hydrophobic membrane, such that heat is exchanged between the two streams. A line leaving the heat exchanger returns a heated stream from the heat exchanger to a location in a line upstream of the membrane distillation unit. A brine tank in communication with the membrane distillation unit receives a portion of a stream from the membrane product side and contains a concentrated brine solution containing the portion of the stream from the membrane product side and sodium chloride.