US 12,136,725 B2
Electrolyzer system with steam generation and method of operating same
David Weingaertner, San Jose, CA (US); and Martin Perry, San Jose, CA (US)
Assigned to BLOOM ENERGY CORPORATION, San Jose, CA (US)
Filed by Bloom Energy Corporation, San Jose, CA (US)
Filed on Sep. 30, 2022, as Appl. No. 17/937,364.
Claims priority of provisional application 63/278,741, filed on Nov. 12, 2021.
Prior Publication US 2023/0155214 A1, May 18, 2023
Int. Cl. C25B 1/02 (2006.01); C25B 1/04 (2021.01); C25B 1/042 (2021.01); H01M 8/1246 (2016.01); H01M 16/00 (2006.01); H01M 8/12 (2016.01)
CPC H01M 16/003 (2013.01) [C25B 1/042 (2021.01); H01M 8/1246 (2013.01); H01M 2008/1293 (2013.01); H01M 2300/0071 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An electrolyzer system, comprising:
a steam generator configured to generate steam;
one or more stacks of solid oxide electrolyzer cells configured to generate a hydrogen stream using the steam generated by the steam generator;
a hotbox housing the one or more stacks;
a hydrogen blower configured to pressurize the hydrogen stream generated by the one or more stacks;
a hydrogen processor configured to compress the pressurized hydrogen stream output from the hydrogen blower;
a first output conduit fluidly connecting a hydrogen outlet of the hotbox to the hydrogen blower; and
a second output conduit fluidly connecting an outlet of the hydrogen blower to an inlet of the hydrogen processor,
wherein the hydrogen processor is configured to compress the pressurized hydrogen stream provided from the hydrogen blower to the hydrogen processor through the second output conduit;
wherein the hydrogen blower is configured to prevent pressure fluctuations generated by the hydrogen processor from being transmitted to the one or more stacks; and
wherein the hydrogen processor includes a hydrogen pump that receives hydrogen streams from multiple hotboxes.