scholarly journals Thermochemical processes for hydrogen production. Progress report, January 1--July 31, 1977. [Sulfuric acid-hydrogen bromide cycle]

1977 ◽  
Author(s):  
K Cox
Keyword(s):  
Sulfuric Acid ◽  
Hydrogen Production ◽  
Hydrogen Bromide ◽  
Progress Report ◽  
Thermochemical Processes

scholarly journals Review of Sulfuric Acid Decomposition Processes for Sulfur-Based Thermochemical Hydrogen Production Cycles

Processes ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 1383
Author(s):  
Claudio Corgnale ◽  
Maximilian B. Gorensek ◽  
William A. Summers
Keyword(s):  
Sulfuric Acid ◽  
Hydrogen Production ◽  
Critical Review ◽  
Operating Conditions ◽  
Thermochemical Processes ◽  
Production Cycles ◽  
Thermal Section ◽  
And Performance ◽  
Sulfuric Acid Decomposition ◽  
Renewable Hydrogen

Thermochemical processes based on sulfur compounds are among the most developed systems to produce hydrogen through water splitting. Due to their operating conditions, sulfur cycles are suited to be coupled with either nuclear or solar plants for renewable hydrogen production. A critical review of the most promising sulfur cycles, namely the Hybrid Sulfur, the Sulfur Iodine, the Sulfur Bromine and the Sulfur Ammonia processes, is given, including the work being performed for each cycle and discussing their maturity and performance for nuclear and solar applications. Each sulfur-based process is comprised of a sulfuric acid thermal section, where sulfuric acid is concentrated and decomposed to sulfur dioxide, water and oxygen, which is then separated from the other products and extracted. A critical review of the main solutions adopted for the H2SO4 thermal section, including reactor configurations, catalytic formulations, constitutive materials and chemical process configurations, is presented.

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