摘要
在气流床快速热解装置上,系统地研究了内蒙东胜烟煤在氢气和氮气气氛中的快速热解行为。结果表明:在常压、700℃,煤在氢气氛中快速热解获得的液态烃的产率达2.6%,比在氮气氛中提高了80%,在6.0MPa的压力下,在氢气氛中的液态烃的产率是氮气氛的17倍;在常压、800℃时,在氢气氛中热解获得的甲烷产率达8.0%,比在同条件的氮气氛中提高了2.5倍,6.0MPa、700℃时,在氢气氛中的甲烷产率是氮气氛的5.3倍。烟煤在氢气氛中快速热解更有利于获取三苯(苯,甲苯,二甲苯)、三酚(苯酚,甲酚。
The flash pyrolysis of Dongsheng bituminous coal in H 2 and N 2 atmospheres were studied in a small entrained reactor The results showed that the yield of HCL (liquid hydrocarbon) produced in H 2 reached 2 6% at normal pressure and 700℃ which was 80% more than that produced in N 2 at the same condition. The yield of HCL in H 2 at 6 0MPa and 700℃ were 17 times larger than that produced in N 2 A large amount of free radical produced during coal pyrolysis can be fixed by hydrogen, so pyrolysis in H 2 can provide more HCL than pyrolysis in N 2 The yield of methane produced in H 2 was increased by 2 5 times of that produced in N 2 at normal pressure and 800℃ The yield of methane produced in H 2 was 4 3 times larger than that produced in N 2 at 6 0MPa pressure and 700℃ Production of methane needs enough hydrogen Pyrolysis in H 2 provides large amount of hydrogen for production of methane
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
1996年第5期411-415,共5页
Journal of Fuel Chemistry and Technology
基金
国家自然科学基金
关键词
烟煤
热解
加氢热解
bituminous coal, pyrolysis atmosphere, flash pyrolysis