US 12,486,586 B2
Separators for gaseous products in oxocarbon electrolyzers
Jonathan Maistrello, La Garenne Colombes (FR); David Wakerley, Paris (FR); Sarah Lamaison, Paris (FR); Paul S Wallace, Austin, TX (US); Raphaël Sanjuan, St Maur des Fossés (FR); Joshua A. Rabinowitz, San Francisco, CA (US); and Fanny Bétermier, Paris (FR)
Assigned to Dioxycle, Saint Ouen sur Seine (FR)
Filed by Dioxycle, Saint Ouen sur Seine (FR)
Filed on Feb. 14, 2025, as Appl. No. 19/054,351.
Claims priority of provisional application 63/554,907, filed on Feb. 16, 2024.
Claims priority of provisional application 63/667,749, filed on Jul. 4, 2024.
Claims priority of provisional application 63/675,255, filed on Jul. 24, 2024.
Prior Publication US 2025/0263854 A1, Aug. 21, 2025
Int. Cl. C25B 3/03 (2021.01); C25B 1/02 (2006.01); C25B 1/23 (2021.01); C25B 3/26 (2021.01); C25B 9/67 (2021.01); C25B 15/021 (2021.01); C25B 15/029 (2021.01); C25B 15/08 (2006.01)
CPC C25B 9/67 (2021.01) [C25B 1/02 (2013.01); C25B 1/23 (2021.01); C25B 3/03 (2021.01); C25B 3/26 (2021.01); C25B 15/021 (2021.01); C25B 15/029 (2021.01); C25B 15/083 (2021.01); C25B 15/087 (2021.01)] 27 Claims
OG exemplary drawing
 
1. A method comprising:
supplying an oxocarbon to an input stream of a cathode chamber of an oxocarbon electrolyzer;
converting the oxocarbon to a product gas in the cathode chamber;
obtaining an output stream, with the product gas and residual oxocarbon, from the oxocarbon electrolyzer;
recycling a portion of the product gas, from the output stream, to the input stream; and
supplying the output stream to a first separator;
wherein (i) the first separator is a membrane separator, a pressure swing adsorption separator, a temperature swing adsorption separator, a cryogenic separator, or a lean oil absorption separator; (ii) the first separator comprises two or more stages, wherein each separator stage can be a same or different type; and (iii) the product gas is recycled from the output stream between two stages in the two or more stages.