| 双助剂对CuO/SiO_2催化甲醇乙醇合成异丁醛的影响 |
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| 引用本文： | 刘翠改,吴静,王康军,李海花.双助剂对CuO/SiO_2催化甲醇乙醇合成异丁醛的影响[J].石油化工,2011,40(5):550-553. |
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| 作者姓名： | 刘翠改 吴静 王康军 李海花 |
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| 作者单位： | 沈阳化工大学化学工程学院,辽宁沈阳,110142 |
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| 基金项目： | 2010年辽宁省教育厅科研项目L2010440) |
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| 摘 要： | 采用溶胶-凝胶法制备了CuO-Fe2O3-ZrO2/SiO2双助剂型催化剂,将其用于催化甲醇与乙醇一步合成异丁醛的反应,考察了助剂Fe2O3和ZrO2含量对催化剂性能的影响;采用BET,XRD,H2-TPR等手段对催化剂的结构进行了表征。实验结果表明,在CuO质量分数为20%时,适量加入助剂Fe2O3和ZrO2,可以使二者产生协同作用,一方面增大了催化剂的比表面积;另一方面促进了CuO的分散,改善了催化剂的还原性能,从而提高了催化剂的活性和异丁醛的选择性。以Fe2O3质量分数为20%、ZrO2质量分数为10%的CuO-Fe2O3-ZrO2/SiO2为催化剂,在常压、反应温度320℃、n(甲醇)∶n(乙醇)=2∶1的反应条件下,乙醇转化率为58.81%,异丁醛的选择性和收率分别为73.96%和43.50%。
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| 关 键 词： | 甲醇 乙醇 异丁醛 助剂 氧化铜/二氧化硅催化剂 |
Effect of Double Promoters on CuO/SiO2 Catalyst for Synthesis of Isobutyraldehyde from Methanol and Ethanol |
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| Liu Cuigai,Wu Jing,Wang Kangjun,Li Haihua.Effect of Double Promoters on CuO/SiO2 Catalyst for Synthesis of Isobutyraldehyde from Methanol and Ethanol[J].Petrochemical Technology,2011,40(5):550-553. |
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| Authors: | Liu Cuigai Wu Jing Wang Kangjun Li Haihua |
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| Affiliation: | Liu Cuigai,Wu Jing,Wang Kangjun,Li Haihua(College of Chemical Engineering,Shenyang University of Chemical Technology,Shenyang Liaoning 110142,China) |
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| Abstract: | Double promoter catalysts CuO-Fe2O3-ZrO2/SiO2 were prepared by sol-gel method and used in one-step synthesis of isobutyraldehyde from methanol and ethanol.Influence of the double promoters Fe2O3 and ZrO2 on the catalyst performance in the synthesis was investigated.The catalysts were characterized by means of BET,XRD and H2-TPR.The results showed that,at CuO mass fraction 20%,a synergetic effect between the double promoters could take place when the promoters Fe2O3 and ZrO2 were appropriately added to the C... |
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| Keywords: | methanol ethanol isobutyraldehyde promoter copper oxide/silica catalyst |
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