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Performance Assessment Study on the Na‐O‐H Thermochemical Water Splitting Cycle for Hydrogen Generation
Author(s) -
Oruc Onur,
Dincer Ibrahim
Publication year - 2021
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.202000497
Subject(s) - hydrogen production , thermochemical cycle , hydrogen , chemistry , decomposition , water splitting , hydrogen purifier , oxygen , sodium , inorganic chemistry , thermodynamics , catalysis , organic chemistry , physics , photocatalysis
The sodium‐oxygen‐hydrogen (Na‐O‐H) thermochemical cycle is investigated, as one of the potential methods of thermochemical water decomposition and hydrogen generation. The hydrogen production reaction, metal separation reaction, and hydrolysis reaction, forming the Na‐O‐H thermochemical cycle, are examined by RGibbs reactor modeling. The parameters for the three reactions are optimized in terms of hydrogen yield, pressure, temperature, and heat requirement. The metal separation reaction is carried out under vacuum pressure, while other reactions can be conducted under atmospheric pressure.