000			01668nab a2200193 4500
005			20260520000828.0
008			260224s2009 xxu
245	0	0	_aPyrolysis behavior of weakly reductive coals from Northwest China
260			_a _b _cene. 2009
270			_a27/07/2009 ; 27/07/2009
300			_a5 p. ; 870-875
520			_aTranscripción del resúmen publicado por el autor: Pyrolysis behaviors of three weakly reductive coals from northwest China and one reductive Pingshuo (PS) coal were investigated in a thermogravimetric analyzer and a fixed-bed reactor. The results show that the pyrolysis behaviors of the weakly reductive coals are obviously different from that of the reductive coal despite their similar elemental composition. Compared with PS coal, the weakly reductive coals exhibit a lower weight loss and a lower rate of weight loss, and the peaks corresponding to the maximum rate of weight loss shift to high temperature. During pyrolysis in a fixed-bed reactor, the conversion and tar and gas yields of all the coals increase with temperature. The weakly reductive coals have lower conversions and tar yields than PS coal in the temperature range investigated, which is accordant with the weight loss in thermogravimetric analysis. The tars from coal pyrolysis were characterized by FT-IR, ultimate analysis, and 1H NMR, and the combustion behavior of chars from different coals was compared on a thermogravimetric analyzer.
773	0		_tEnergy & fuels _g23
942			_cARTICULO
100	1		_aZhao, Yunpeng _941616
100	1		_aHu, Haoquan _918131
100	1		_aJin, Lijun _941617
999			_c170208 _d170208