Continuous process for sustainable production of hydrogen
AssigneeUniversity of Surrey
InventorsBahman Amini Horri, Sai Gu
Life of this patent
Estimating the term…
Abstract
The disclosure provides a method of producing hydrogen. The method comprises conducting a thermochemical reaction by contacting a metal, or an alloy thereof, with steam to produce a metal oxide and/or a metal hydroxide and hydrogen. The method then comprises contacting the metal oxide and/or the metal hydroxide produced in the thermochemical reaction with water or a basic aqueous solution to produce a solution comprising a metal ion. Finally, the method comprises conducting an electrochemical reaction by applying a voltage across an anode and a cathode, whereby at least a portion of the cathode contacts the solution comprising the metal ion, to produce hydrogen, oxygen and the metal, or the alloy thereof.
Claims18
A method of producing hydrogen, the method comprising:
- conducting a thermochemical reaction by contacting zinc or tin, or an alloy thereof, wherein the zinc or tin, or the alloy thereof, is a solid;
- with steam to produce zinc oxide and/or zinc hydroxide or tin oxide and/or tin hydroxide and hydrogen;
- contacting the zinc oxide and/or zinc hydroxide or the tin oxide and/or tin hydroxide produced in the thermochemical reaction with water or a basic aqueous solution to produce a solution comprising a zinc ion or a tin ion;
- and
- conducting an electrochemical reaction by applying a voltage across an anode and a cathode, wherein the voltage is applied by a power supply and whereby at least a portion of the cathode contacts the solution comprising the zinc ion or the tin ion, to simultaneously produce hydrogen and the zinc or tin, or the alloy thereof at the cathode and to produce oxygen at the anode.
A method of producing hydrogen, the method comprising:
- contacting zinc oxide and/or zinc hydroxide or tin oxide and/or tin hydroxide with water or a basic aqueous solution to produce a solution comprising a zinc ion or a tin ion;
- conducting an electrochemical reaction by applying a voltage across an anode and a cathode, wherein the voltage is applied by a power supply and whereby at least a portion of the cathode contacts the solution comprising the zinc ion or the tin ion, to simultaneously produce hydrogen and zinc or tin, or an alloy thereof, at the cathode and to produce oxygen at the anode;
- and
- conducting a thermochemical reaction by contacting the zinc or tin, or the alloy thereof, produced in the electrochemical reaction, wherein the zinc or tin, or the alloy thereof, is a solid;
- with steam to produce the zinc oxide and/or zinc hydroxide or tin oxide and/or tin hydroxide and hydrogen.
Dependencies are inferred from the claim text.