Distribution and occurrence of sodium in high oil coal in Xinjiang
ZHU Chuan
ZHANG Jing
WANG Yue
Abstract：The high oil coal with tar yield more than 12% in Xinjiang province would be high quality feedstock of separate utilization.But the yield and rate of pyrolysis products are influenced by the sodium-rich as the same with Zhundong coal.The coal exploration data of Baishihu mining area-a representative high oil coal area in Xinjiang province was analyzed in this paper.In addition, samples from No.1 and No.3 district were collected for the chemical extraction experiment.The results showed that Na2 O content in ash was mainly 2.5% to 3.5%, and the tar yield tend to increase with increasing volatile matter and vitrinite, but less correlation with the Na2 O in ash.The sodium in Baishihu coal showed a tendency of coal-phile, and the molar content of which was obviously higher than the chlorine.The main occurrence mode of sodium in Baishihu coal is H 2 O-soluble, accounting for 80% and existing as NaCl, Na2 SO 4 and hydrated sodium ions.
Keywords：high oil coalsodiumtar yieldchemical extraction experimentoccurrencevolatile mattervitrinite
Publication Date：2016-01-01
Pages：4( 7-10 )