助剂对K-CuFe/ZrO_2催化剂CO加氢制低碳醇的改性研究  

Study on Modification of K-CuFe/ZrO_2 Catalyst for CO Hydrogenation to Lower Alcohol

作　　者：丁羽佳 张兴 段昌林 郑长征[1] Ding Yujia;Zhang Xing;Duan Changlin;Zheng Changzheng(Xi’an Polytechnic University,School of Environmental and Chemical Engineering,Xi’an 710048,China)

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048

出　　处：《云南化工》2018年第12期44-45,共2页Yunnan Chemical Technology

基　　金：陕西省工业技术攻关项目(2016GY-171)

摘　　要：通过共沉淀法制备了不同助剂改性的K-CuFe/ZrO_2催化剂。采用X射线粉末衍射(XRD)和N2物理吸附-脱附(BET)等手段对改性的K-CuFe/ZrO_2催化剂物理结构进行了表征,研究了改性的K-CuFe/ZrO_2催化剂上CO加氢制混合醇的催化活性。结果表明:加入一定量的Mn助剂,可增大催化剂的比表面积,促进CO加氢形成低碳醇。The K-CuFe/ZrO2 catalysts modified by different additives were prepared by cocurrent precipitation method.The physical structure of the modified K-CuFe/ZrO2 catalyst was characterized by X-ray powder diffraction(XRD)and N2 physical adsorption-desorption(BET).The catalytic activity of CO hydrogenation to mixed alcohols on modified K-CuFe/ZrO2 catalysts was investigated.The results show that the addition of a certain amount of Mn additive can increase the specific surface area of the catalyst and promote the hydrogenation of CO to form C2+OH.When the Cu/Mn molar ratio in the K-CuFeMn/ZrO2 catalyst is 7/1,the specific surface area of the catalyst is the largest.

关 键 词：K-CuFe/ZrO2催化剂 助剂 合成气 低碳醇 

分 类 号：O643[理学—物理化学]