《Table 2 U ltimate analysis and atomic ratios of TDSFs》

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《次烟煤与木质素共热溶物的液化及其Ni-Mo-S/Al_2O_3催化剂循环利用性能（英文）》

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In our previous w ork[5]w e found that SF coal gave high yields of TDSF at the TD temperature 320-360℃.The TDSY decreased at 380℃，and it w as low er w hen the TD temperature w as less than 320℃.Therefore the TD temperatures of 320-360℃w ere chosen in this study.Four kinds of TDSFs w ith different TDSYs w ere prepared，they w ere TDSF from the TD of SF coal in 1-M N at 360℃（TD-1-M N-360），TDSFs from the CTD of SF coal and lignin in 1-M N at 360℃（CTD-1-M N-360），320℃（CTD-1-MN-320）and 320℃with 10%ethanol addition in 1-M N（CTD-1-M N+ET-320）.Their TDSYs w ere 58%，74%，60%and 80%respectively.The TDSY from the TD of lignin in 1-M N at 360℃w as 83%，therefore the w eighted mean value of TDSY in the CTD of SF coal and lignin（1∶1 in w eight）w as 70%.The TDSY increased to 74%in the CTD of SF coal and lignin at 360℃，w hich is higher than the w eighted mean value of 70%，suggesting that depolymerization of lignin can promote the TD of SF coal[9].Addition of 10%ethanol in 1-M N in the CTD at 320℃increased TDSY greatly from 60%to 80%compared to that of w ithout ethanol addition.This means that addition of a certain amount of ethanol in the non-polar solvent 1-M N is one of effective methods to increase the TDSY in CTD of SF coal and lignin at low temperature，and ethanolysis may be responsible for this promotion[7].Table 2 show s the ultimate analysis and atomic ratios of the four TDSFs.The TDSF from the TD of SF coal contained more carbon and less hydrogen and oxygen，resulting in its low er H/C and O/C comparing to those from CTD of SF coal and lignin.This is because lignin contains less carbon and more hydrogen and oxygen than SF coal，and parts of lignin enter the TDSF in the CTD process.The elemental compositions and H/C，O/C atomic ratios of TDSFs from CTD of SF coal and lignin w ere similar.