Patent ID: 9518331
Filing Date: 2016-12-13
CPC Classification: B01D,C25B,Y02E

Claim Text:
1. A system for providing hydrogen, comprising: a first electrochemical cell or cell stack comprising a first membrane electrode assembly comprising a cathode and an anode separated by a proton exchange membrane, an inlet in controllable fluid communication with a variably-available source of a first gas that comprises hydrogen in fluid communication with the anode side of the first electrochemical cell or cell stack, and an outlet in fluid communication with the cathode side of the first membrane electrode assembly; a second electrochemical cell or cell stack comprising a second membrane electrode assembly comprising a cathode and an anode separated by a proton exchange membrane, a water inlet in fluid communication with the second membrane electrode assembly, and an outlet in fluid communication with the cathode side of the second membrane electrode assembly; and a controller in communication with the first and second electrochemical cells or cell stacks, configured to receive a hydrogen demand signal and: