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Reforming process

Patent ·
OSTI ID:6417641
In reforming natural gas to produce ammonia or hydrogen, du Pont has improved the catalyst-tube life and plant utility by adding hydrogen to the steam-natural gas mixture fed to the reformer. Continuous addition (at 0.5 to 10% by volume, based on natural gas) of hydrogen to this mixture prevents the formation of hot spots on the tubes containing the nickel catalyst. The added hydrogen reacts with nickel oxide in the catalyst to reduce it to nickel, the active form of the catalyst. No changes are required in the conventional steam-to-carbon ratio or other operating conditions.
Assignee:
E.I. du Pont de Nemours and Co.
Patent Number(s):
US 3827987
OSTI ID:
6417641
Country of Publication:
United States
Language:
English

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Related Subjects

08 HYDROGEN
080103* -- Hydrogen-- Production-- Steam Reformer Processes
090320 -- Inorganic Hydrogen Compound Fuels-- Preparation-- (1976-1989)
10 SYNTHETIC FUELS
AMMONIA
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDRIDES
HYDROGEN COMPOUNDS
HYDROGEN PRODUCTION
NATURAL GAS
NICKEL COMPOUNDS
NICKEL OXIDES
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
OXIDES
OXYGEN COMPOUNDS
PRODUCTION
REFORMER PROCESSES
TRANSITION ELEMENT COMPOUNDS