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二维钴配位聚合物的制备及其乙烯选择性齐聚催化性能研究

发表时间:2017-04-14  浏览量:1195  下载量:208
全部作者: 冯光亮,程阿超,韩阳,户艳平,张瑛
作者单位: 中国石油大学(北京)重质油国家重点实验室
摘 要: 采用溶剂热法合成二维钴金属有机配位聚合物(CoBTC),在不同温度下真空活化得到系列CoBTC催化剂。采用热重(thermogravimetric,TG)分析、X射线衍射(X-ray diffraction,XRD)分析、傅里叶变换红外光谱(Fourier transform infrared spectroscopy,FTIR)分析、扫描电子显微镜(scanning electron microscope,SEM)等表征手段对CoBTC催化材料和催化剂进行表征,并将其应用于乙烯选择性齐聚反应,考察反应体系的n(Al)/n(Co)、反应压力、助催化剂种类对催化性能的影响。结果表明,CoBTC催化剂的乙烯齐聚活性达到3.73×105 g•mol-1(Co)•h-1,C8的选择性高达98.68%.
关 键 词: 石油化学工程;金属有机配位聚合物;乙烯齐聚;C8选择性
Title: Synthesis of a two-dimensional cobalt coordination polymer and its catalytic properties for ethylene selective oligomerization
Author: FENG Guangliang, CHENG Achao, HAN Yang, HU Yanping, ZHANG Ying
Organization: The State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing)
Abstract: A two-dimensional cobalt metal organic coordination polymer (CoBTC) was synthesized using a solvothermal method and evacuated under different temperatures to generate a series of CoBTC catalysts for ethylene selective oligomerization. The physicochemical properties of the CoBTC material were characterized by several techniques including thermogravimetric (TG), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM). The effects of oligomerization reaction parameters, including n(Al)/n(Co), pressure and cocatalysts, on the catalytic activities and oligomers distribution were investigated. Results demonstrated that the CoBTC catalytsts exhibited the optimal ethylene oligomerization activity of 3.73×105 g•mol-1(Co) •h-1 with C8 selectivity of 98.68%.
Key words: petroleum chemical engineering; metal organic coordination polymer; ethylene oligomerization; C8 selectivity
发表期数: 2017年4月第7期
引用格式: 冯光亮,程阿超,韩阳,等. 二维钴配位聚合物的制备及其乙烯选择性齐聚催化性能研究[J]. 中国科技论文在线精品论文,2017,10(7):803-809.
 
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