Advanced thermochemical hydrogen cycles
The overall objective of this program is to contribute to the development of practical thermochemical cycles for the production of hydrogen from water. Specific goals are: investigate and evaluate the technical and economic viability of thermochemical cycles as an advanced technology for producing hydrogen from water; investigate and evaluate the engineering principles involved in interfacing individual thermochemical cycles with the different thermal energy sources (high temperature fission, solar, and fusion); and conduct a continuing research and development effort to evaluate the use of solid sulfates, oxides and other compounds as potentially advanced cycles and as alternates to H/sub 2/SO/sub 4/ based cycles. Basic thermochemistry studies have been completed for two different steps in the decomposition of bismuth sulfate. Two different bismuth sulfate cycles have been defined for different sulfuric acid strengths. The eventual best cycle will depend on energy required to form sulfuric acid at different concentrations. A solids decomposition facility has been constructed and practical studies of solid decompositions are being conducted. The facility includes a rotary kiln system and a dual-particle fluidized bed system. Evaluation of different types of cycles for coupling with different heat sources is continuing.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6603862
- Report Number(s):
- LA-UR-81-1279; CONF-810535-1
- Country of Publication:
- United States
- Language:
- English
Similar Records
LASL thermochemical hydrogen program status on September 30, 1980
LASL bismuth sulfate thermochemical hydrogen cycle
Related Subjects
080102* -- Hydrogen-- Production-- Thermochemical Processes
BISMUTH COMPOUNDS
BISMUTH SULFATES
CHEMICAL REACTIONS
CHEMISTRY
DECOMPOSITION
ELEMENTS
HYDROGEN COMPOUNDS
HYDROGEN PRODUCTION
INORGANIC ACIDS
NONMETALS
OXYGEN
OXYGEN COMPOUNDS
PRODUCTION
RESEARCH PROGRAMS
SULFATES
SULFUR COMPOUNDS
SULFURIC ACID
THERMOCHEMICAL PROCESSES
WATER