Status report on sulfur iodine thermochemical water-splitting cycle
Conference
·
OSTI ID:5536911
Major process improvements which had been identified in an earlier phase of this program were investigated and their feasibility demonstrated. The engineering process flowsheet was revised to incorporate the newest process improvements. It is now being used for an estimate of hydrogen production cost from the General Atomic Company (GAC) cycle. An energy storage cycle for a solar adaptation of the sulfur-iodine cycle has been identified and is being evaluated along with features particularly concerning the availability and level of insolation and how it affects engineering design of the chemical plant. Efforts are also underway with Lawrence Livermore National Laboratory (LLNL) to design the sulfur-iodine cycle around the Tandem Mirror Fusion Reactor. Potential systems for HI purification are being investigated which could eliminate the need for the present phosphoric acid treatment completely and could result in significant savings in capital cost for this part of the process. Potential catalysts for the liquid HI decomposition step were evaluated. Noble metals appear to have highest activity; however, attrition of the catalyst occurs.
- Research Organization:
- General Atomic Co., San Diego, CA (USA)
- DOE Contract Number:
- AC01-80CS80004; AC02-80ET26225
- OSTI ID:
- 5536911
- Report Number(s):
- GA-A-16610; CONF-8109102-2; ON: DE82007164
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
08 HYDROGEN
080102* -- Hydrogen-- Production-- Thermochemical Processes
080400 -- Hydrogen-- Economic
Industrial
& Business Aspects
COST
DIAGRAMS
ELEMENTS
FLOWSHEETS
HALOGEN COMPOUNDS
HALOGENS
HYDRIODIC ACID
HYDROGEN COMPOUNDS
HYDROGEN PRODUCTION
INORGANIC ACIDS
IODINE
IODINE COMPOUNDS
NONMETALS
OXYGEN
OXYGEN COMPOUNDS
PRODUCTION
SULFUR
SULFURIC ACID
THERMOCHEMICAL PROCESSES
WATER
080102* -- Hydrogen-- Production-- Thermochemical Processes
080400 -- Hydrogen-- Economic
Industrial
& Business Aspects
COST
DIAGRAMS
ELEMENTS
FLOWSHEETS
HALOGEN COMPOUNDS
HALOGENS
HYDRIODIC ACID
HYDROGEN COMPOUNDS
HYDROGEN PRODUCTION
INORGANIC ACIDS
IODINE
IODINE COMPOUNDS
NONMETALS
OXYGEN
OXYGEN COMPOUNDS
PRODUCTION
SULFUR
SULFURIC ACID
THERMOCHEMICAL PROCESSES
WATER