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不同催化剂对霍林河褐煤热解产物收率的影响

发表时间:2011-04-15  浏览量:1585  下载量:652
全部作者: 田靖,武建军,胡长娥,刘琼
作者单位: 中国矿业大学化工学院,煤炭加工与高效洁净利用教育部重点实验室
摘 要: 利用格金低温干馏炉研究4种催化剂CaO, MgO, K2CO3和Na2CO3在不同添加量条件下对内蒙古霍林河褐煤热解产物收率的影响,并分别对添加CaO, K2CO3的原煤半焦进行红外分析。结果表明:碱土金属氧化物CaO和MgO的添加可以提高半焦收率、降低焦油收率,而碱金属碳酸盐K2CO3和Na2CO3的添加可以提高煤气收率、降低焦油和半焦收率;由半焦红外分析可知CaO可能以碳酸盐的形式存在半焦中。
关 键 词: 煤化学工程;催化;褐煤;热解
Title: Effects of different catalysts on yield of products of Huolinhe lignite pyrolysis
Author: TIAN Jing, WU Jianjun, HU Chang’e, LIU Qiong
Organization: Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, School of Chemical Engineering and Technology, China University of Mining and Technology
Abstract: In this paper, the effect of the addition of catalysts CaO, MgO, K2CO3 and Na2CO3 in different rations on the yield of catalytic pyrolysis products of Huolinhe lignite were estimated by Gray-King (G-K) low temperature experimental oven and the Fourier transform infrared spectroscopy (FTIR) analysis of char with the addition of CaO, K2CO3 was separately carried out. The results show that the addition of CaO and MgO can increase the char yield and reduce the tar yield, while K2CO3 and Na2CO3 can increase the gas yield and reduce the tar and semi-coke yield. The FTIR analysis of the char indicates that CaO may remain in the semi-coke in the form of carbonate.
Key words: coal chemical engineering; catalytic; lignite; pyrolysis
发表期数: 2011年4月第7期
引用格式: 田靖,武建军,胡长娥,等. 不同催化剂对霍林河褐煤热解产物收率的影响[J]. 中国科技论文在线精品论文,2011,4(7):661-666.
 
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