焙烧温度对CuCoFe@TiO2催化剂上CO2加氢制低碳醇催化性能的影响  

Effect of calcination temperature on the catalytic performance of CuCoFe@TiO catalyst for CO hydrogenation to lower alcohols

作　　者：宋镕鹏 温月丽 王斌[2] 张维中 张倩 王大志 黄伟[2] SONG Rong-peng;WEN Yue-li;WANG Bin;ZHANG Wei-zhong;ZHANG Qian;WANG Da-zhi;HUNAG Wei(College of Environmental Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Key Laboratory of Coal Science and Technology of Education Ministry and Shanxi Province,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学环境科学与工程学院,山西太原030024 [2]太原理工大学煤科学与技术教育部和山西省重点实验室,山西太原030024

出　　处：《天然气化工—C1化学与化工》2020年第4期28-32,70,共6页Natural Gas Chemical Industry

基　　金：国家科技支撑计划项目(2013BAC14B04);国家自然科学基金项目(21336006);山西省重点研发计划项目(国际合作,201803D421099);山西省留学基金委资助项目(2017-035)。

摘　　要：采用溶胶-凝胶法制备了CuCoFe@TiO2催化剂,并在固定床反应器上考察了不同焙烧温度下制备的催化剂用于CO2加氢制低碳醇反应的性能差异。结合X射线衍射(XRD)、N2物理吸脱附(BET)、SEM等表征,发现在压力4 MPa、反应温度300℃、空速2000 h^-1时,焙烧温度为300℃的催化剂的CO2转化率为7.11%,总醇选择性可达24.12%,乙醇选择性为15.70%,其中C2+醇选择性为21.48%,在总醇中的分布可达89.08%。CuCoFe@TiO2 catalysts were prepared by the sol-gel method.The performance differences of the catalysts prepared at different calcination temperatures for CO2 hydrogenation to lower alcohols were investigated on a fixed bed reactor.X-ray diffraction(XRD),N2 physical adsorption and desorption and SEM were applied to characterize the catalysts.It showed that the CO2 conversion was 7.11%,the selectivity of total alcohol and ethanol reached 24.12%and 15.70%,the alcohol distribution of C2+alcohol in the total alcohol reached 89.09%at 300℃,4 MPa,GHSV=2000 h-1.

关 键 词：CuCoFe@TiO2催化剂 CO2加氢 焙烧温度 C2+醇 

分 类 号：O643.3[理学—物理化学]