Hybrid sulfur cycle operation for high-temperature gas-cooled reactors

Gorensek, Maximilian B

Title: Hybrid sulfur cycle operation for high-temperature gas-cooled reactors

Patent · Tue Feb 17 00:00:00 EST 2015

OSTI ID:1170384

Gorensek, Maximilian B

A hybrid sulfur (HyS) cycle process for the production of hydrogen is provided. The process uses a proton exchange membrane (PEM) SO.sub.2-depolarized electrolyzer (SDE) for the low-temperature, electrochemical reaction step and a bayonet reactor for the high-temperature decomposition step The process can be operated at lower temperature and pressure ranges while still providing an overall energy efficient cycle process.

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Research Organization:: Savannah River Ecology Laboratory (SREL), Aiken, SC (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC09-08SR22470

Assignee:: Savannah Nuclear Solutions, LLC (Aiken, SC)

Patent Number(s):: 8,956,526

Application Number:: 13/570,516

OSTI ID:: 1170384

Country of Publication:: United States

Language:: English

References (6)

System using SO.sub.2 as an anode depolarizer in a solid oxide electrolyte electrolysis cell for H.sub.2 production from steam Lu, Wen https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4412895 US Patent Document 4,412,895	patent	November 1983
Integrated boiler, superheater, and decomposer for sulfuric acid decomposition Moore, Robert C.; Pickard, Paul S.; Parma, Edward J. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7645437 US Patent Document 7,645,437	patent	January 2010
Hydrogen generation process with dual pressure multi stage electrolysis Lahoda, Edward J.; McLaughin, David F. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7976693 US Patent Document 7,976,693	patent	July 2011
Methods and systems for producing syngas Hawkes, Grant L.; O'Brien, James E.; Stoots, Carl M. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8366902 US Patent Document 8,366,902	patent	February 2013
Hybrid sulfur cycle flowsheets for hydrogen production using high-temperature gas-cooled reactors Gorensek, Maximilian B. International Journal of Hydrogen Energy, Vol. 36, Issue 20, p. 12725-12741 https://doi.org/10.1016/j.ijhydene.2011.07.033	journal	October 2011
Energy Efficiency Limits for a Recuperative Bayonet Sulfuric Acid Decomposition Reactor for Sulfur Cycle Thermochemical Hydrogen Production Gorensek, Maximilian B.; Edwards, Thomas B. Industrial & Engineering Chemistry Research, Vol. 48, Issue 15 https://doi.org/10.1021/ie900310r	journal	August 2009

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