CoMoP／13X催化剂上黄土庙煤热解特性研究  

TG-FTIR STUDY ON HUANGTUMIAO COAL PYROLYSIS ON CoMoP/13X CATALYST

作　　者：陈静升[1] 马晓迅[1] 李爽[1] 郝婷[1] 马志超[1] 孙鸣[1] 王汝成[1] 徐龙[1] 

机构地区：[1]西北大学化工学院,陕北能源先进化工利用技术教育部工程研究中心,陕西省洁净煤转化工程技术研究中心,西安710069

出　　处：《煤炭转化》2012年第1期4-8,共5页Coal Conversion

基　　金：国家自然科学基金委员会-神华集团“煤炭联合基金”资助项目(51174281);国家自然科学基金资助项目(21106113);国家自然科学青年基金资助项目(NSFC21006078);国家科技支撑项目(2009BAA20B02);陕西省重大科技创新项目(2009ZKC04-06);陕西省科学技术研究发展计划项目(2010K01-082);陕西省科学技术研究发展计划项目(2007K07-13);陕西省自然科学基金资助项目(2011JY006)

摘　　要：采用等体积浸渍法制备了CoMoP/13X催化剂,利用TG-FTIR技术研究了该催化剂对黄土庙煤热解失重特性和气态产物生成规律的影响,并对不同条件下的煤热解过程进行了动力学分析.结果表明,CoMoP/13X催化剂对黄土庙煤加氢热解有明显的催化作用.与原煤热解相比,催化加氢热解的第二个热解峰温和二次脱气阶段的表观活化能分别降低了27.7℃和7.9kJ/mol.在线FTIR实验结果表明,CoMoP/13X催化剂可以改善黄土庙煤热解产物的组成与分布,热解产物中CO2较大幅度降低,芳烃化合物和脂肪族化合物显著增加,CH4和CO等高热值气体有不同程度的增加.CoMoP/13X catalyst was prepared by incipient wetness impregnation method. The effect of CoMoP/13X catalyst on the pyrolysis characteristics and gas evolution of HTM coal was investigated by TG-FTIR technique. The kinetic parameters of the thermal decomposition re- actions were calculated based on TG experiment. TGA results indicate that the second peak temperature of HTM coal pyrolysis was decrease by 27.67℃ over CoMoP/13X catalyst under hydrogen atmosphere, and the calculated activation energy of second pyrolysis stage （660 ℃-710℃） was decrease by 7.9 kJ/mol, indicating superior catalytic effects of CoMoP/13X on HTM coal pyrolysis under hydrogen atmosphere. FTIR analysis results show that the CoMoP/13X greatly varied distribution of pyrolysis products, in which CH4, CO, aliphatic and aromatic hydrocarbon increase with different extent, while the CO2 yield decrease remarkably.

关 键 词：黄土庙煤 CoMoP/13X 催化热解 动力学分析 TG-FTIR 

分 类 号：TQ530.2[化学工程—煤化学工程]