燃料化学学报
燃料化學學報
연료화학학보
Journal of Fuel Chemistry and Technology
2015年
11期
1287-1294
,共8页
崔童敏%李超%周志杰%常清华%高瑞%于广锁%王辅臣
崔童敏%李超%週誌傑%常清華%高瑞%于廣鎖%王輔臣
최동민%리초%주지걸%상청화%고서%우엄쇄%왕보신
快速热解%真密度%官能团%气体释放
快速熱解%真密度%官能糰%氣體釋放
쾌속열해%진밀도%관능단%기체석방
rapid pyrolysis%true density%functional group%release of gas
利用高频电炉对神府煤进行快速热解,研究了不同热解温度和停留时间下,固相和气相产物的性质。结果表明,煤焦的失重率及真密度随温度升高和时间的延长而增长。红外光谱结果表明,热解过程中,煤中含氢/含氧官能团分解,生成H2、CO、CO2、CH4等气体,并且其分解程度随温度的升高和时间的延长而加深。气相产物中H2和CO的释放量随温度的升高和时间的延长而增加,而CO2和CH4存在释放量的峰值。气相产物随温度的升高和时间的延长而增多,导致高温煤焦出现大量的孔隙和裂缝。
利用高頻電爐對神府煤進行快速熱解,研究瞭不同熱解溫度和停留時間下,固相和氣相產物的性質。結果錶明,煤焦的失重率及真密度隨溫度升高和時間的延長而增長。紅外光譜結果錶明,熱解過程中,煤中含氫/含氧官能糰分解,生成H2、CO、CO2、CH4等氣體,併且其分解程度隨溫度的升高和時間的延長而加深。氣相產物中H2和CO的釋放量隨溫度的升高和時間的延長而增加,而CO2和CH4存在釋放量的峰值。氣相產物隨溫度的升高和時間的延長而增多,導緻高溫煤焦齣現大量的孔隙和裂縫。
이용고빈전로대신부매진행쾌속열해,연구료불동열해온도화정류시간하,고상화기상산물적성질。결과표명,매초적실중솔급진밀도수온도승고화시간적연장이증장。홍외광보결과표명,열해과정중,매중함경/함양관능단분해,생성H2、CO、CO2、CH4등기체,병차기분해정도수온도적승고화시간적연장이가심。기상산물중H2화CO적석방량수온도적승고화시간적연장이증가,이CO2화CH4존재석방량적봉치。기상산물수온도적승고화시간적연장이증다,도치고온매초출현대량적공극화렬봉。
A high-frequency furnace was utilized to carry out rapid pyrolysis of Shenfu coal. The effect of temperature and residence time on the properties of solid and gas products was studied. The results show that the mass loss and true density of the char increase with increasing of both temperature and time. The analysis of their infrared spectra indicates that the hydrogen/oxygen functional groups decompose to form H2 , CO, CO2 , CH4 and other gases during pyrolysis, and the decomposition increase with increasing temperature and time. The emission of H2 and CO monotonically increases, however there are emission peaks for CO2 and CH4 . The total gas products increase with temperature and time, leading to the pores and cracks on the char after high temperature pyrolysis.