The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 08, 2014
Filed:
Nov. 08, 2008
Cunping Huang, Cocoa, FL (US);
Ali T-raissi, Melbourne, FL (US);
Nazim Muradov, Melbourne, FL (US);
University of Central Florida Research Foundation, Inc., Orlando, FL (US);
Abstract
Two classes of hybrid/thermochemical water splitting processes for the production of hydrogen and oxygen have been proposed based on (1) metal sulfate-ammonia cycles (2) metal pyrosulfate-ammonia cycles. Methods and systems for a metal sulfate MSO—NHcycle for producing Hand Ofrom a closed system including feeding an aqueous (NH)SOsolution into a photoctalytic reactor to oxidize the aqueous (NH)SOinto aqueous (NH)SOand reduce water to hydrogen, mixing the resulting aqueous (NH)SOwith metal oxide (e.g. ZnO) to form a slurry, heating the slurry of aqueous (NH)SOand ZnO(s) in the low temperature reactor to produce a gaseous mixture of NHand HO and solid ZnSO(s), heating solid ZnSOat a high temperature reactor to produce a gaseous mixture of SOand Oand solid product ZnO, mixing the gaseous mixture of SOand Owith an NHand HO stream in an absorber to form aqueous (NH)SOsolution and separate Ofor aqueous solution, recycling the resultant solution back to the photoreactor and sending ZnO to mix with aqueous (NH)SOsolution to close the water splitting cycle wherein gaseous Hand Oare the only products output from the closed ZnSO—NHcycle.