US 12,274,982 B2
Electrodialysis systems with decreased concentration gradients at high recovery rates
Xin Li, Houston, TX (US); and Ethan Demeter, The Woodlands, TX (US)
Assigned to TexOPCO, LLC, Houston, TX (US)
Filed by TexOPCO, LLC, Houston, TX (US)
Filed on Oct. 21, 2022, as Appl. No. 17/971,124.
Application 17/971,124 is a continuation of application No. 16/844,787, filed on Apr. 9, 2020, granted, now 11,478,752.
Claims priority of provisional application 62/831,508, filed on Apr. 9, 2019.
Prior Publication US 2023/0054712 A1, Feb. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 61/46 (2006.01); B01D 61/58 (2006.01); C02F 1/469 (2023.01); C02F 101/10 (2006.01); C02F 101/12 (2006.01); C02F 101/14 (2006.01); C02F 101/20 (2006.01)
CPC B01D 61/463 (2022.08) [B01D 61/58 (2013.01); C02F 1/4693 (2013.01); B01D 2311/2512 (2022.08); B01D 2317/022 (2013.01); C02F 2101/10 (2013.01); C02F 2101/103 (2013.01); C02F 2101/12 (2013.01); C02F 2101/14 (2013.01); C02F 2101/20 (2013.01); C02F 2301/046 (2013.01); C02F 2301/08 (2013.01)] 23 Claims
OG exemplary drawing
 
1. An electrodialysis system comprising: a feed stream; and
a first electrodialysis device comprising a product inlet stream, a product outlet stream, a brine inlet stream, and a brine outlet stream; and
a second electrodialysis device downstream of the first electrodialysis device, wherein the second electrodialysis device comprises a product inlet stream, a product outlet stream, a brine inlet stream, and a brine outlet stream,
wherein the brine inlet stream of the second electrodialysis device comprises the feed stream and wherein the product inlet stream for the first electrodialysis device comprises the brine outlet stream of the second electrodialysis device.