2-10　Applicability of the Low Temperature Plasma Ashing for Evaluation of Coal Ash.

Abstract

Low-temperature plasma ashing (LTA) is a pretreatment method that is used to preserve volatile ash contents. LTA was applied to the conditions of pulverized coal which used in actual boilers, and it was investigated to its status. The results showed that, it was confirmed that sulfur was preserved with progression of LTA. On the other hand, the coal which could not progress of LTA showed the fine ash accumulation on the surface of its coal particles. And, it was considered that the LTA reaction was inhibited with this phenomenon.