山西地区1/3焦煤显微组分的热解特性研究  

Study on pyrolysis characteristics of 1/3 coking coal macerals in Shanxi

作　　者：范文生 党帅 韩新杰 田国亮 侯瑞芳 Fan Wensheng;Dang Shuai;Han Xinjie;Tian Guoiang;Hou Ruifang(Shanxi Coking Coal Group Co.,Ltd.,Taiyuan 030024,China;Shanxi Coking Coal Group Co.,Ltd.Laboratory of Clean Coking Coal Utilization,Taiyuan 030024,China)

机构地区：[1]山西焦煤集团有限责任公司,太原030024 [2]山西焦煤集团有限责任公司炼焦煤清洁利用实验室,太原030024

出　　处：《燃料与化工》2024年第1期5-8,共4页Fuel & Chemical Processes

基　　金：山西省科技重大专项(20181102020)。

摘　　要：利用密度梯度离心法对山西3种1/3焦煤显微组分进行分离富集,同时研究其各显微组分热解特征。结果表明:随着热解温度的升高,显微组分在350~600℃均出现明显的失重现象。热重(TG)和微商热重(DTG)曲线表明,惰质组与镜质组相比,有较高的剧烈热解开始温度、最大热解速率峰温和最大热解速率,原煤的热解参数介于镜质组与惰质组之间。热解过程中镜质组的质量损失最大,其次是原煤,惰质组的质量损失最小。The density gradient centrifugation method is used to separate and enrich three types of 1/3 coking coal macerals from Shanxi,and the pyrolysis characteristics of each macerals are studied.The results show that:with the increase of pyrolysis temperature,the maceral shows obvious weight loss at 350~600℃.The thermogravimetry(TG)and derivative thermogravimetry(DTG)curves indicate that the inertinite has intense pyrolysis starting temperature,maximum pyroly sis rate peak,and maximum pyrolysis rate compared to the vitrinite,the pyrolysis parameters of raw coal are between vitrinite and inertinite.The mass loss of vitrinite is the largest during pyrolysis,followed by raw coal,and the mass loss of iner tinite is the least.

关 键 词：1/3焦煤 显微组分 热重 失重率 

分 类 号：TQ530.2[化学工程—煤化学工程]