HIGH-TEMPERATURE STEAM ELECTROLYSIS: TECHNICAL AND ECONOMIC EVALUATION OF ALTERNATIVE PROCESS DESIGNS.

M. A. Liepa, Ali Borhan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

A high-temperature water-vapor electrolysis (HTE) unit operating at an average temperature of 1000 degree C was integrated into a preliminary process design using electrical and thermal energy derived from coal. Process variations with either steam or water feeds under isothermal or nonisothermal HTE operation were considered. Operating and capital costs were estimated for each process flowsheet, with the lowest costs being obtained for operation with high steam conversions in the electrolyzer. Estimated hydrogen production costs were compared with estimates obtained from the literature for other hydrogen production processes. The estimated HTE hydrogen production costs ranged from 0. 17 to 0. 22 per standard cubic meter of hydrogen produced (13 to 17/GJ, using the higher heating value), assuming 1. 90/GJ for thermal energy and 13. 90/GJ for electrical energy.

Original languageEnglish (US)
Title of host publicationAdvances in Hydrogen Energy
EditorsT.Nejat Veziroglu, J.Bryan Taylor
PublisherPergamon Press
Pages813-823
Number of pages11
ISBN (Print)0080309534
StatePublished - Dec 1 1984

Publication series

NameAdvances in Hydrogen Energy
Volume2
ISSN (Print)0276-2412

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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