US 12,330,966 B2
Deionization system with heat management
Jake Christensen, Elk Grove, CA (US); Münir M. Besli, San Jose, CA (US); Saravanan Kuppan, San Jose, CA (US); and Sondra Hellstrom, East Palo Alto, CA (US)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on Aug. 27, 2021, as Appl. No. 17/458,804.
Prior Publication US 2023/0063865 A1, Mar. 2, 2023
Int. Cl. C02F 1/469 (2023.01); C02F 1/00 (2023.01); C02F 1/461 (2023.01); C02F 103/08 (2006.01)
CPC C02F 1/4691 (2013.01) [C02F 1/008 (2013.01); C02F 1/46104 (2013.01); C02F 2103/08 (2013.01); C02F 2201/46115 (2013.01); C02F 2201/4612 (2013.01); C02F 2201/46155 (2013.01); C02F 2209/02 (2013.01); C02F 2209/05 (2013.01); C02F 2301/046 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrochemical deionization system for removing ions from a solution stream, the system comprising:
an upstream capacitive deionization cell having at least one upstream compartment including an upstream compartment inlet and an upstream compartment outlet and configured to flow the solution stream between the upstream compartment inlet and the upstream compartment outlet;
a downstream capacitive deionization cell having at least one downstream compartment including a downstream compartment inlet and a downstream compartment outlet and configured to flow the solution stream between the downstream compartment inlet and the downstream compartment outlet, the at least one upstream compartment in fluid communication with the at least one downstream compartment;
a first thermal device configured to heat the solution stream before entering the at least one upstream compartment to an elevated temperature; and
a second thermal device configured to cool the solution stream before entering the at least one downstream compartment to a reduced temperature less than the elevated temperature, the reduced and elevated temperatures are in an operating temperature range of the electrochemical deionization system in which one or more electrochemical impedances and one or more degradation mechanisms effects are reduced within the operating temperature range.