不同Zr含量对Cu-Zn/ZSM-5催化剂催化CO_(2)加氢制甲醇性能的影响  

Study on catalytic hydrogenation of CO_(2)to methanol over Cu-Zn/ZSM-5 catalysts with different Zr contents

作　　者：李国峰[1] 刘凯楠 李帅 杨伟强 孙庆国[1] 莫文龙[2] Li Guofeng;Liu Kainan;Li Shuai;Yang Weiqiang;Sun Qingguo;Mo Wenlong(College of Petroleum and Chemical Engineering,Xinjiang Career Technical College,Kuitun 833200,Xinjiang,China;State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources,Xinjiang Key Laboratory of Coal Clean Conversion&Chemical Engineering Process,School of Chemical Engineerin gand Technology,Xinjiang University,Urumqi 830046,Xinjiang,China)

机构地区：[1]新疆应用职业技术学院石油与化学工程学院,新疆奎屯833200 [2]省部共建碳基能源资源化学与利用国家重点实验室,煤炭清洁转化与化工过程新疆维吾尔自治区重点实验室,新疆大学化工学院,新疆乌鲁木齐830046

出　　处：《工业催化》2023年第12期48-53,共6页Industrial Catalysis

基　　金：新疆应用职业技术学院产教融合实训基地建设项目“合盛硅业精细化工产教融合实训基地”(CJRH JD2022002);新疆应用职业技术学院2023年科研重点项目“新疆中低温煤焦油催化加氢裂解生成轻质芳烃的研究”(XYZY2023KZD001)。

摘　　要：采用浸渍法制备不同Zr添加量的系列催化剂0%Zr-Cu-Zn/ZSM-5、2%Zr-Cu-Zn/ZSM-5、4%Zr-Cu-Zn/ZSM-5、6%Zr-Cu-Zn/ZSM-5、8%Zr-Cu-Zn/ZSM-5。采用XRD、NH_(3)-TPD、H_(2)-TPR作为表征手段,以CO_(2)加氢制备甲醇作为催化剂性能评价的反应体系,探究不同Zr添加量对催化剂物性结构和加氢性能的影响。结果表明,助剂Zr的加入对催化剂的酸性、孔道结构以及催化性能有显著影响,添加4%Zr的催化剂4%Zr-Cu-Zn/ZSM-5具有最佳的活性,CO_(2)转化率约为14%,甲醇选择性约为85%。A series of catalysts with different Zr content including 0%Zr-Cu-Zn/ZSM-5,2%Zr-Cu-Zn/ZSM-5,4%Zr-Cu-Zn/ZSM-5,6%Zr-Cu-Zn/ZSM-5 and 8%Zr-Cu-Zn/ZSM-5 were prepared by impregnation method.XRD,NH 3-TPD and H 2-TPR were used as characterization methods,and hydrogenation of CO_(2)to produce methanol was used as catalyst performance evaluation reaction system,to explore the effects of different Zr addition levels on the physical structure and hydrogenation performance of the catalyst.The results show that the addition of additive Zr has significant effects on the surface acidity,pore structure and catalytic performance of the catalyst.The catalyst 4%Zr-Cu-Zn/ZSM-5 containing 4%Zr has the best activity,and the conversion of CO_(2)and selectivity of methanol can reach about 14%and 85%,respectively.

关 键 词：催化化学 助剂Zr Cu-Zn/ZSM-5催化剂 CO_(2)加氢 甲醇 

分 类 号：TQ426.6[化学工程] O643.36[理学—物理化学]