The corrosion behaviors of pure iron and two commercial steels were examined in presence of ZnCl2-KCl deposits in controlled atmosphere containing HCl at 500℃.

Sulfur removal and its distribution during coal pyrolysis in fluidized bed reactor under oxidative atmospheres;

The experimental study on desulfurization of mixture of coal and poplar powder through pyrolysis in oxidative atmosphere;

The raw Heshan coal was pyrolyzed in a fixed-bed reactor in oxidative atmosphere to examine the sulfur removal efficiency and the volatilization content.

Experimental results show that the fixation proportions of chromium, nickel, copper and arsenic would increase with the elevation of their melting and boiling points under oxidizing atmosphere.

Based on the theory of Stefan flow, reduction mechanism of pellet containing carbon in oxidizing atmosphere has been studied and the minimum reduction rate vRL of pellet without oxidation may be calculated.

The caboratorial tests have illustrated that the carbon-containing pellets can be quickly reduced at thehigh temperaturesunder oxidizing atmosphere.

A sharp increased removal of pyrite sulfur in coal under the low oxidizing atmosphere is also observed during mild thermal upgrading,but the removal of organic sulfur in coal is not obvious.