| 络合浸渍法制备Ni/ZrO_2催化剂及其催化顺酐液相加氢性能 |
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| 引用本文： | 徐爱军,梁二艳,王杰,张因,赵永祥.络合浸渍法制备Ni/ZrO_2催化剂及其催化顺酐液相加氢性能[J].工业催化,2018,26(2):28-32. |
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| 作者姓名： | 徐爱军 梁二艳 王杰 张因 赵永祥 |
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| 作者单位： | 1.河南能源化工集团精细化工有限公司,河南 鹤壁 458000;2.山西大学精细化学品工程研究中心,山西 太原 030006 |
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| 基金项目： | 国家自然科学基金青年科学基金项目(21303097); 国家国际科技合作专项(2013DFA40460) |
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| 摘 要： | 分别以柠檬酸、乙二胺、乙酰丙酮以及乙二胺四乙酸二钠为络合剂,采用络合浸渍法制备Ni质量分数为10%的Ni/ZrO_2催化剂,考察催化顺酐液相加氢性能,并利用XRD、H2-TPR、H2-TPD等对其进行表征。结果表明,各络合剂对催化剂中金属-载体相互作用、活性金属分散度以及C=O加氢活性的影响均不相同。引入乙酰丙酮的Ni/ZrO_2-AC催化剂具有最高的活性金属分散度和C=O加氢活性,表现出最高的γ-丁内酯选择性,该催化剂在反应温度210℃、氢压5 MPa条件下反应3 h,顺酐转化率约100%,γ-丁内酯选择性47.0%。
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| 关 键 词： | 催化化学 顺酐加氢 Ni/ZrO 2催化剂 络合剂 γ-丁内酯 |
Preparation of Ni/ZrO2 catalysts for liquid hydrogenation of maleic anhydride by complex impregnation |
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| Xu Aijun,Liang Eryan,Wang Jie,Zhang Yin,Zhao Yongxiang.Preparation of Ni/ZrO2 catalysts for liquid hydrogenation of maleic anhydride by complex impregnation[J].Industrial Catalysis,2018,26(2):28-32. |
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| Authors: | Xu Aijun Liang Eryan Wang Jie Zhang Yin Zhao Yongxiang |
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| Affiliation: | 1.Henan Energy and Chemical Group Fine Chemical Co.,Ltd,Hebi 458000,China;2.Engineering Research Center of Ministry of Education for Fine Chemicals,Shanxi University,Taiyuan 030006,Shanxi,China |
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| Abstract: | Ni/ZrO2 catalysts with Ni content of 10wt% were prepared by complexing-impregnation method,using citric acid,ethylenediamine,acetylacetone and disodium ethylene diaminetetraacetate as complexing agent respectively.Catalytic performances of these catalysts for liquid phase hydrogenation of maleic anhydride were evaluated.Catalysts were characterized by XRD,H2-TRP and H2-TPD.Results showed that different complexing agents had different effects on interaction between metal and support,dispersion of active metal and C=O hydrogenation activity.Ni/ZrO2-AC catalyst prepared using acetylacetone as complexing agent exhibited the highest metal dispersion,C=O hydrogenation activityand γ-butyrolactone selectivity.When reaction conditions were 210 ℃ and 5 MPa of hydrogen pressure,conversion of maleic anhydride on Ni/ZrO2-AC catalyst was 100% and selectivity of γ-butyrolactonewas 47.0%. |
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| Keywords: | catalytic chemistry maleic anhydride hydrogenation Ni/ZrO2 catalyst complexing agent γ-butyrolactone |
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