微波功率对低变质煤与塑料共热解的影响  

EFFECT OF MICROWAVE POWER ON CO-PYROLYSIS OF LOW METAMORPHIC COAL AND PLASTIC

作　　者：刘巧妮 宋永辉[2] 曹明 刘钰辉 

机构地区：[1]中煤科工集团西安研究院有限公司,西安710054 [2]西安建筑科技大学冶金学院、陕西省冶金工程技术研究中心,西安710055 [3]中煤西安设计工程有限公司,西安710054

出　　处：《煤炭转化》2015年第3期27-31,共5页Coal Conversion

基　　金：国家科技支撑计划项目(2009BAA20B01);榆林市科技计划项目(2011JY004)

摘　　要：对陕北孙家岔(SJC)煤和聚丙烯塑料(PP)进行了微波共热解实验,采用红外光谱仪、气相色谱-质谱联用仪、煤气分析仪等仪器对热解产物进行了分析表征,主要研究了热解终温为800℃时,不同的微波热解功率对热解产物组成的影响规律.结果表明:随着微波功率的降低,热解后所得固态产物中灰分的含量逐渐降低,挥发分的含量逐渐升高,其他元素的含量变化不大,C元素的含量基本保持在一定区域内而不发生变化;CO和H2含量逐渐减小,CH4含量呈现增加的趋势,CnHm和CO2含量基本不变;热解后所得焦油成分中烷烃类和烯烃类物质的含量逐渐减小,而芳香烃类物质的含量逐渐增大.Sunjiacha （SJC） coal in Northern Shaanxi and polypropylene plastic （PP） were co-pyrolyzed. Pyrolysis productions were analyzed by FTIR, SEM and gas analyzer. Influences of microwave powers on the contents of the production were studied at 800 ℃ （terminal tempera- ture）. The results showed that the ash content in the coke decreased gradually, volatile content increased and the other element content was basically constant with the decrease of the microwave power. The content of CO and H2 reduced, the content of CH4 rised and the content of CnHm and CO2 was constant as the microwave power decreased. Alkane, olefin content in the tar decreased and aromatic hydrocarbon content increased with the increase of the microwave power.

关 键 词：低变质煤 塑料 微波 共热解 

分 类 号：TQ530.2[化学工程—煤化学工程]