氮改性介孔碳的制备、表征及其对乙炔氢氯化反应的催化活性  

Preparation and Characterization of Nitrogen Modified Mesoporous Carbons and Its Catalytic Activity for Acetylene Hydrochlorination Reaction

作　　者：马宁[1] 朱明远[1] 代斌[1] 

机构地区：[1]石河子大学化学化工学院/新疆兵团化工绿色过程重点实验室/省部共建国家重点实验室培育基地,石河子832000

出　　处：《石河子大学学报（自然科学版）》2013年第3期377-381,共5页Journal of Shihezi University(Natural Science)

基　　金：国家重点基础研究发展计划(973计划)项目(2012CB720302);教育部长江学者和创新团队发展计划项目(IRT1161)

摘　　要：采用三元共组装法制备了一系列不同氮改性的介孔碳及其Au/MOMC催化剂,探索了介孔碳制备的最佳条件,利用BET、元素分析仪(EA)对样品进行了表征,考察了介孔碳作为载体及其Au/MOMC催化剂,在固定床反应装置上进行乙炔氢氯化反应的催化性能。实验结果表明,在180℃、C2H2(GHSV)=180h-1、VHCl/VC2H2=1.15、Au的负载量为1%的反应条件下,Au/MOMC催化剂的乙炔转化率可达到89%(比Au/OMC提高34%),选择性接近99.99%。A series of nitrogen modified mesoporous carbons and Au/MOMC catalysts were prepared by triconstituent co-assembly and characterized by BET and EA methods. The catalytic performance of mesoporous carbons and Au/MOMC catalysts for acetylene hydrochlorination to vinyl chloride in a packed bed reactor and the optimal preparation conditions was studied. Under the reaction conditions of temperature 180 ℃, Cz Hz hourly space velocity （GHSV） 180 h-1, feed volume ratio V （HCI）/V （C2H2） = 1.15 and Au loading of 1 （wt）%, the acetylene conversion of Au/MOMC were 89 % （higher than Au/MOMC by 34 %）,and vinyl chloride monomer selectivity was approximately 99.99%.

关 键 词：乙炔氢氯化 介孔碳 尿素 三聚氰胺 

分 类 号：TQ203[化学工程—有机化工]