Fe-CN_x复合材料用于煤直接液化催化的试验研究  

Application of Fe-CN_x composite in direct coal liquefaction

作　　者：李永伦[1] 刘旗[2] 谢晶[1] 李克健[1] 王利军[2] 

机构地区：[1]中国神华煤制油化工有限公司上海研究院,上海201108 [2]上海第二工业大学环境与材料工程学院,上海201209

出　　处：《洁净煤技术》2016年第2期42-46,共5页Clean Coal Technology

基　　金：国家自然科学基金资助项目(51174274);上海市曙光计划资助项目(09SG54);上海市教育委员会科研创新项目(12ZZ195)

摘　　要：为提高＂863＂催化剂的煤直接液化催化性能,以二乙胺为碳源和氮源,Fe/Na Y为催化剂,采用化学气相沉积法（CVD）制备得到氮掺杂碳纳米管材料（CNx）,并在其上浸渍Fe SO4·7H2O得到可用于煤直接液化助剂的Fe-CNx复合材料。采用拉曼光谱（Raman）、X射线衍射光谱（XRD）和扫描电子显微镜（SEM）等手段表征了氮掺杂碳纳米管结构组成和形貌,考察了Fe-CNx复合材料分别作为＂863＂催化剂助剂和单独作为催化剂时的煤液化加氢反应催化性能。结果表明,制备的氮掺杂碳纳米管形态规整,直径为50-100 nm,石磨化程度较高。煤直接液化反应表明,添加量为0.3%的Fe-CNx复合材料单独作为煤直接液化催化剂使用时,可达到与＂863＂催化剂相当的煤液化性能;作为助剂使用时,仅添加0.1%的Fe-CNx即可分别提高煤液化煤转化率和油收率1.54%和3.42%,表现出极强的助催化煤液化加氢性能。In order to improve catalytic performance of ＂ 863＂ catalyst in direct coal liquefaction,a N-doped carbon nanotubes（ CNx） was synthesized by chemical vapor deposition（ CVD） using diethylamine as carbon source and nitrogen source,Fe / Na Y as catalyst. The FeCNxcomposite was obtained by impregnation of CNxin Fe SO4 solution. The structure and surface morphology of CNxwere characterized by Ranman spectra,X ray diffraction（ XRD） and scanning electron microscopy（ SEM）. The catalytic performances of Fe- CNxwhich was used as catalyst promoter and catalyst in direct coal liquefaction were investigated. The results showed that the N-doped carbon nanotubes,with diameter of 50 ~ 100 nm and high degree of graphitization,were efficiently synthesized. The results of direct coal liquefaction indicated that the catalytic performance was equivalent to that of the ＂ 863＂ catalyst when using 0. 3% Fe-CNxas unique catalyst,and the conversion rate of coal and oil yield could be increased by 1. 54% and 3. 42% respectively when only using 0. 1% Fe- CNxas promoters for ＂ 863＂ catalyst.

关 键 词：氮掺杂碳纳米管 煤直接液化 催化剂 催化性能 

分 类 号：TQ536[化学工程—煤化学工程]