| 组合催化剂上丙烷选择氧化制丙烯酸 |
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| 引用本文： | 方雯,葛庆杰,俞佳枫,徐恒泳.组合催化剂上丙烷选择氧化制丙烯酸[J].催化学报,2011,32(6):1022-1026. |
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| 作者姓名： | 方雯 葛庆杰 俞佳枫 徐恒泳 |
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| 作者单位： | 中国科学院大连化学物理研究所;中国科学院研究生院; |
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| 摘 要： | 考察了在C3H8氧化脱氢的NiZrO催化剂和C3H6选择氧化的Mo基催化剂组成的组合催化剂上C3H8选择氧化制取丙烯酸的反应性能.结果表明,两个催化剂比例适当时,反应的丙烯酸收率可达最大.优化温度、烷氧比、空速以及N2含量等反应条件的结果发现,反应体系中O2的匮乏会严重影响反应性能.在有氧分布器的反应装置中对所选组合催化剂在优化的反应条件下进行了30h稳定性测试,结果表明,在340oC,反应性能基本稳定,C3H8转化率和丙烯酸选择性可分别维持在～20%和～74%.
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| 关 键 词： | 丙烷 选择性氧化 丙烯酸 组合催化剂 氧分布器 |
Propane Selective Oxidation to Acrylic Acid over Combined Catalysts |
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| FANG Wen,GE Qingjie,YU Jiafeng,XU Hengyong.Propane Selective Oxidation to Acrylic Acid over Combined Catalysts[J].Chinese Journal of Catalysis,2011,32(6):1022-1026. |
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| Authors: | FANG Wen GE Qingjie YU Jiafeng XU Hengyong |
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| Institution: | FANG Wen1,2,GE Qingjie1,a,YU Jiafeng1,XU Hengyong1,b 1Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,Liaoning,China 2Graduate University of Chinese Academy of Sciences,Beijing 100049,China |
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| Abstract: | A double-layer catalyst,containing a NiZrO catalyst for propane oxidative dehydrogenation and a Mo-based mixed metal oxide catalyst for propylene selective oxidation,was applied to propane selective oxidation to acrylic acid.The composition of the combined catalyst was first adjusted.When the mass ratio of the two components was 1:1,a maximum acrylic acid yield was achieved.The effects of reaction conditions were studied,including temperature,space velocity,V(C3H8)/V(O2) ratio,and N2 content.Based on the us... |
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| Keywords: | propane selective oxidation acrylic acid combined catalyst O2-distributor |
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