中温煤焦油中类型Fe的分布特征  

Distribution of Fe types in medium temperature coal tar

作　　者：王磊[1] 李冬[1] 黄江流[1] 毕瑶[1] 朱永红[1] 袁扬[1] 

机构地区：[1]西北大学化工学院,陕西西安710069

出　　处：《石油化工》2016年第8期932-935,共4页Petrochemical Technology

基　　金：国家自然科学基金青年基金项目(21206136);教育部博士点新教师基金项目(20126101120013);陕西省科技统筹创新工程计划项目(2014KTCL01-09);陕西省教育厅产业化培育项目(14JF026;15JF031);陕西省青年科技新星项目(2016KJXX-32)

摘　　要：对中温煤焦油中各种类型的Fe进行分离,采用ICP测定煤焦油中各种类型Fe的含量,利用SEM、EDX、FTIR、XRD、元素分析等手段对煤焦油中甲苯不溶物进行表征。实验结果表明,煤焦油中甲苯不溶物Fe含量占总Fe含量的66.64%(w),油溶性Fe含量占总Fe含量的33.03%(w),水溶性Fe含量总Fe含量的0.33%(w)。表征结果显示,煤焦油中甲苯不溶物芳构化程度较高,有机物多为稠环芳烃类物质,Fe可能与含有硫、氮、氧等杂原子的稠环芳烃类物质相结合;甲苯不溶物中少量的Fe存在于黏土类矿物质中,这部分无机矿物质可能来源于煤炼焦时带入的灰分。Different types of Fe in medium temperature coal tar were separated and determined by means of ICE Toluene-insolubles in the coal tar were characterized by means of SEM, EDX, FT1R, XRD and element analysis. The experimental results showed that, toluene-insoluble Fe, oil-soluble Fe and water-soluble Fe in the coal tar were 66.64%（w）, 33.03%（w） and 0.33%（w） of the total Fe content, respectively. The characterization results showed that the toluene-insolubles in the coal tar had high degree of aromatization and contained a lot of polycyclic aromatics. Fe might be combined with the polycyclic aromatics containing sulfur, nitrogen, oxygen and other heteroatoms. A small amount of Fe in the toluene-insolubles existed in clay-like inorganic minerals which might derive from coking coal ash.

关 键 词：中温煤焦油 油溶性Fe 水溶性Fe 甲苯不溶物 

分 类 号：TQ524[化学工程—煤化学工程]