Process for the generation of a low dew-point, oxygen-free prote

Details Process for the generation of a low dew-point, oxygen-free prote Process for the generation of a low dew-point, oxygen-free prote

1998-03-11

2000-04-18

Straub, Gary P.

Compositions

Gaseous compositions

252373, 252374, 252375, 252376, 423210, 423220, 423230, 423235, 4232391, 4232451, 4232453, 423246, 423247, 423248, B01J 800, B01D 4700, C01B 300, C01B 2100, C01B 3118, C07C 100

Patent

active

060511621

ABSTRACT:
A process for the generation of a protective nitrogen-based atmosphere for the performance of heat treatments of metal articles in three phases, including an initial phase in which a gaseous hydrocarbon feed and an oxidant containing oxygen react on a first catalyst to form a reaction product, a second phase in which the reaction product is added to nitrogen contaminated by the presence of oxygen and a third phase in which the reaction product is conveyed to a second catalyst to form a low-dew point gaseous mixture as a protective atmosphere.

REFERENCES:
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patent: 5779826 (1998-07-01), Nayar et al.
patent: 5856585 (1999-01-01), Sanfilippo et al.
O. V. Krylov, Catalytic Reactions of Partial Methane Oxidation, Catalysis Today 18 (1993) 209-302.

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