A catalytic plasma exhaust purification system
Conference
·
· Fusion Technol.; (United States)
OSTI ID:5850078
For the plasma exhaust clean-up of a fusion reactor a process concept based on the hydrogen isotope purification through palladium/silver alloy permeators combined with selective catalytic reaction steps is proposed, which avoids intermediate conversion of impurities into water. To recover tritium from tritiated impurities ammonia is decomposed into the elements inside the permeators; water is reduced catalytically by carbon monoxide into carbon dioxide and hydrogen; and hydrocarbons are cracked into carbon and hydrogen on a nickel catalyst. Experimental results on the reactivity, consumption and regeneration of the catalysts are given. The permeation rate of hydrogen through palladium/silver alloy was found to be largely independent of the impurities CO, CO/sub 2/, H/sub 2/O and CH/sub 4/. Technological requirements in view of NET are discussed.
- Research Organization:
- Kernforschungszentrum Karlsruhe G.m.b.H. (Germany, F.R.). Inst. fuer Radiochemie; Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan)
- OSTI ID:
- 5850078
- Report Number(s):
- CONF-880505-
- Conference Information:
- Journal Name: Fusion Technol.; (United States) Journal Volume: 14:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700205 -- Fusion Power Plant Technology-- Fuel
Heating
& Injection Systems
700206* -- Fusion Power Plant Technology-- Environmental Aspects
ALKANES
ALLOYS
ATOM TRANSPORT
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CATALYSIS
CHALCOGENIDES
CLEANING
DIFFUSION
ELEMENTS
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
HYDROCARBONS
HYDROGEN
IMPURITIES
INDUSTRIAL PLANTS
ISOTOPE SEPARATION PLANTS
METALS
METHANE
NET TOKAMAK
NEUTRAL-PARTICLE TRANSPORT
NICKEL
NONMETALS
NUCLEAR FACILITIES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PALLADIUM ALLOYS
PLATINUM METAL ALLOYS
PURIFICATION
RADIATION TRANSPORT
SILVER ALLOYS
TECHNOLOGY ASSESSMENT
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
TRANSITION ELEMENTS
TRITIUM EXTRACTION PLANT
WASTES
400201 -- Chemical & Physicochemical Properties
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700205 -- Fusion Power Plant Technology-- Fuel
Heating
& Injection Systems
700206* -- Fusion Power Plant Technology-- Environmental Aspects
ALKANES
ALLOYS
ATOM TRANSPORT
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CATALYSIS
CHALCOGENIDES
CLEANING
DIFFUSION
ELEMENTS
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
HYDROCARBONS
HYDROGEN
IMPURITIES
INDUSTRIAL PLANTS
ISOTOPE SEPARATION PLANTS
METALS
METHANE
NET TOKAMAK
NEUTRAL-PARTICLE TRANSPORT
NICKEL
NONMETALS
NUCLEAR FACILITIES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PALLADIUM ALLOYS
PLATINUM METAL ALLOYS
PURIFICATION
RADIATION TRANSPORT
SILVER ALLOYS
TECHNOLOGY ASSESSMENT
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
TRANSITION ELEMENTS
TRITIUM EXTRACTION PLANT
WASTES