Purification of gas mixtures
Patent
·
OSTI ID:5167347
The invention concerns a process for the purification of a hydrogen-containing gas mixture comprising up to 45% by volume of hydrogen, together with carbon oxides, hydrogen cyanide and impurities including nitrogen oxides and/or oxygen. The process comprises passing the gas over a sulphur-resistant hydrogenation catalyst at a temperature of from 120 to 250/sup degrees/ C and at a pressure of from 0.5 to 250 bar to remove the nitrogen oxides and/or oxygen therefrom while substantially avoiding hydrogen cyanide removal. The gas may be obtained from a koppers-totzek gasifier and may be used for the production of ammonia after further purification. The sulphur-resistant catalyst may be a nickel molybdate or cobalt molybdate catalyst or a metal from group vi and/or group viii of the periodic table.
- Assignee:
- Aeci Ltd (South Africa)
- Patent Number(s):
- US 4320100
- OSTI ID:
- 5167347
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
090300* -- Inorganic Hydrogen Compound Fuels-- (-1989)
10 SYNTHETIC FUELS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AMMONIA
CARBON COMPOUNDS
CARBON OXIDES
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL GASIFICATION
COBALT COMPOUNDS
CYANIDES
ELEMENTS
FLUIDS
GASES
GASIFICATION
HYDRIDES
HYDROCYANIC ACID
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGENATION
INORGANIC ACIDS
MOLYBDENUM COMPOUNDS
NICKEL COMPOUNDS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NITROGEN OXIDES
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PRODUCTION
PURIFICATION
SHIFT PROCESSES
SULFUR COMPOUNDS
SYNTHESIS GAS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
10 SYNTHETIC FUELS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AMMONIA
CARBON COMPOUNDS
CARBON OXIDES
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL GASIFICATION
COBALT COMPOUNDS
CYANIDES
ELEMENTS
FLUIDS
GASES
GASIFICATION
HYDRIDES
HYDROCYANIC ACID
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGENATION
INORGANIC ACIDS
MOLYBDENUM COMPOUNDS
NICKEL COMPOUNDS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NITROGEN OXIDES
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PRODUCTION
PURIFICATION
SHIFT PROCESSES
SULFUR COMPOUNDS
SYNTHESIS GAS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS