| 丙烯醛氧化制备丙烯酸催化剂失活原因浅析 |
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| 引用本文： | 刘肖飞,南洋,葛汉青,朱金明. 丙烯醛氧化制备丙烯酸催化剂失活原因浅析[J]. 石油炼制与化工, 2011, 42(3): 47-50 |
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| 作者姓名： | 刘肖飞 南洋 葛汉青 朱金明 |
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| 作者单位： | 兰州化工研究中心; |
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| 摘 要： | 针对目前国产丙烯酸催化剂在工业应用中出现的问题，分别对新鲜丙烯酸催化剂和工业应用2年后丙烯酸催化剂的物理和化学性能进行比较，采用XRD、X荧光、热重分析、孔吸附等分析方法对催化剂进行表征，认为丙烯酸催化剂失活的主要原因是主活性组分Mo、V和助剂组分Cu、Sr等的流失，Sb+3Sb+5O4相态向Sb2O3相态的转变也是催化剂活性下降的部分原因。
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| 关 键 词： | 丙烯 丙烯醛 丙烯酸 催化剂 失活 |
| 收稿时间： | 2010-05-10 |
| 修稿时间： | 2010-10-19 |
A BRIEF ANALYSIS OF CATALYST DEACTIVATION IN OXIDIZING ACROLEIN To PREPARE ACRYLIC ACID |
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| Liu Xiaofei,Nan Yang,Ge Hanqing,Zhu Jinming. A BRIEF ANALYSIS OF CATALYST DEACTIVATION IN OXIDIZING ACROLEIN To PREPARE ACRYLIC ACID[J]. Petroleum Processing and Petrochemicals, 2011, 42(3): 47-50 |
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| Authors: | Liu Xiaofei Nan Yang Ge Hanqing Zhu Jinming |
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| Affiliation: | (Lanzhou Petrochemical Research Center,Petrochemical Research Institute,PetroChina,Lanzhou 730060) |
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| Abstract: | Catalysts of oxidizing acrolein to acrylic acid were developed by Lanzhou Petrochemical Research Center and applied in some industrial units. However, with the prolongation of operation period the yield of acrylic acid was gradually reduced. In order to investigate the main causes of catalyst deactivation, the physical-chemical properties of fresh catalyst and catalyst used for 2.5-year were compared using XRD, X-fluorescence, TGA and other techniques. Results showed that the loss of main active components, Mo and V, and co-components, Cu and Sr, was one of the main causes for catalyst deactivation. Besides, the phase transition of Sb+3Sb+5O4 to Sb2O3 might also have negative effect on catalyst activity. However, the yield of acrylic acid could be increased after used catalyst regeneration. |
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| Keywords: | Propylene Acrolein Acrylic Acid Catalyst deactivation |
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