Patent ID: 11932560
Assignee: XEROX CORPORATION
Field: Chemical engineering (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 13:
14. A system comprising:
a fluid feed stream;
a membraneless electrochemical device, comprising:
a first electrode comprising a first redox-active material configured to have a proton-coupled oxidation reaction with a first portion of the fluid feed stream in response to a first electrical potential across the first electrode and a second electrode;
the second electrode comprising a second redox-active material configured to have a proton-coupled reduction reaction with a second portion of the fluid feed stream in response to the first electrical potential, wherein the first portion and the second portion are separated;
a first effluent stream comprising the first portion and having a first pH, wherein the first pH is the pH value of the first effluent stream;
a second effluent stream comprising the second portion and having a second pH different from the first pH, wherein the second pH is the pH value of the second effluent stream;

an energy source configured to apply the first electrical potential and a second, reverse electrical potential across the first and second electrodes;
a first receptacle configured to receive an effluent stream having the first pH;
a second receptacle configured to receive an effluent stream having the second pH; and
a switching valve coupled to the first and second effluent streams and the first and second receptacles.