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Heavy metals emission is a hot topic during coal combustion in the recent years. In this paper, the effect of various sorbents, temperature and air staging combustion on heavy metals emission are experimentally investigated. The results show that the three sorbents(kaolinite, bauxite, and limestone) have the ability of reducing heavy metals emission. Kaolinite is the optimum sorbent for Pb, bauxite...
By introducing two sublattices to the general solution model, a modified model for studying the thermodynamic properties of interstitial solid solutions in multicomponent steels is suggested. The excess Gibbs free energy of mixing in Fe-Σi-C steel can be calculated from the modified model with the thermodynamic parameters of ternary Fe-i-C and binary i-j systems that are easily obtained. As an example,...
The hot deformation behavior of AISI T1 (18W-4Cr-1V) high-speed steel has been investigated in the temperature range 950-1150 o C at strain rates of 0.001-10 s -1 and true strains of 0-0.6. The results show that the activation energy for deformation, Q, decreases with the increase of strain below 1000 o C, and it changes slightly with the strain above 1000 o C...
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