| 摘要 |
Protective atmosphere for the heat-treatment of metals is obtained by heating a reactor (2) containing a Nickel-based catalyst to a temperature of between 1000 DEG C and 1200 DEG C, feeding the said reactor (2) with a stream of nitrogen having oxygen content of between 0.1% and 9% and a stream of hydrocarbons quantitatively substantially stoichiometric to obtain CO and H2, and sending the gas from the catalytic reactor (2) to a heat-treatment furnace (1). <IMAGE>
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