Abstract:

The thermal decomposition characteristics of common carburants and the dependence of the carbon-potential on the furnace atomsphere constituents from an unballanced angle of furnace atomsphere habe been studied. The test results show an existence of a close linear relation between the methane contents and the carbon-potential and the feasibility to use methane as a control parameter. Moreover, it is recommendable to use the methane parameter to control ethyl acetate. When methanol and ethyl acetate are used to be carburants and methane parameter is controlled automatically. the carbon-potential control precision and its repeatability are able to reach a higher level, where the precision≤ ± 0.03%. A new point concerning the reaction during methane-used carburization has been brought in on the basis of dynamic tests and their analysis.

Key words: carbon-potential control, thermal decomposition, methane