Abstract
Present situation of low rank powder coal used in combustion majority will be solved with the solid heat carrier pyrolysis process, which is also a effective way to improve the comprehensive utilization efficiency of powder coal. Yining long flame coal was carbonized by solid heat carrier. The coal tar pitch collected from coal tar by atmospheric distillation in the same condition, for researching the temperature and constant temperature solid heat carrier other factors on the properties change trend of coal tar pitch from volatile and coked value, toluene insoluble, β-resin, softening point. The results showed that the coal pitch prepared of coal tar at different heat carrier temperature and constant temperature put up various properties change trend very clearly.
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