公开(公告)号：US20210016227A1

公开(公告)日：2021-01-21

申请号：US17061279

申请日：2020-10-01

Applicant: BL Technologies Inc.

Inventor： Hua WANG ,  Hareesh Kumar Reddy KOMMEPALLI ,  Andrew Philip SHAPIRO

IPC: B01D61/02 ,  B01D61/08 ,  C02F1/44 ,  E21B43/20 ,  C02F1/00

Abstract: A reverse osmosis unit for processing a feed solution is provided. The unit includes a pressure vessel includes an inlet end, an outlet end, and a vessel body extending between the inlet end and the outlet end. The reverse osmosis unit further includes a plurality of first membrane modules positioned within the pressure vessel. Each first membrane module of the plurality of first membrane modules has a first salt permeance value. At least one second membrane module is positioned within the pressure vessel and coupled in flow communication to the plurality of first membrane modules. The at least one second membrane module has a second salt permeance value that is different from the first salt permeance value.

公开(公告)号：US20180311620A1

公开(公告)日：2018-11-01

申请号：US15739569

申请日：2016-07-08

Applicant: BL TECHNOLOGIES, INC.

Inventor： Xianguo YU ,  Hui LEI ,  Andrew Philip SHAPIRO ,  Hai YANG ,  Rihua XIONG ,  Markus HANKE ,  Jens RUETTEN ,  Bernardo Alves CINELLI ,  Ana COSTA

IPC: B01D61/36 ,  B01D53/22

CPC classification number: B01D61/364 ,  B01D2311/25

Abstract: A multistage membrane distillation device includes a plurality of membrane distillation cells each having at least one membrane. Each membrane defines a feed space at one surface thereof and a vapor space at an opposite surface thereof, and is configured to allow a part of a feed flowing in the feed space to evaporate and pass through the membrane as a vapor phase into the vapor space where the vapor phase is condensed to a distillate including a volatile and condensable substance, and the non-evaporated feed to exit the feed space as a concentrated fluid. The device further includes a fluid connection for allowing the distillate from an ith cell to flow as a feed into the feed space of an (i+1)th cell to produce a further distillate with a higher concentration of the volatile and condensable substance. The concentrated fluid from each cell is prevented from entering the feed space of other cells.