| 镍催化剂制备条件对羰化性能的影响 |
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| 引用本文： | 刘金红,张倩,姚虎卿.镍催化剂制备条件对羰化性能的影响[J].天然气化工,2007,32(4):12-15. |
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| 作者姓名： | 刘金红 张倩 姚虎卿 |
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| 作者单位： | 1. 南京工业大学化学化工学院,江苏南京,210009;南通职业大学化学工程系,江苏南通,226007
2. 南京工业大学化学化工学院,江苏南京,210009 |
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| 基金项目： | 江苏省高校自然科学基金 |
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| 摘 要： | 研究了催化剂制备因素对Ni/AC催化剂的甲醇气相羰化活性的影响。结果表明,水洗能明显增大载体比表面积,载体经0.4mol/L酸洗后制得的催化剂羰化活性较高。甲醇的转化率和羰化产物的总收率在催化剂w(Ni)为8%时达到最高。低温焙烧几乎无醋酸生成,适宜的焙烧温度为450℃、还原温度为550℃;还原温度过高,会导致少量活性中心聚集,影响催化活性。
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| 关 键 词： | 甲醇 气相羰基化 镍催化剂 醋酸 |
| 文章编号： | 1001-9219（2007）04-12-03 |
| 修稿时间： | 2007-03-24 |
The Effect of Preparation Conditions on the Carbonylation performance of Nickel Catalyst |
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| LIU Jin-hong,ZHANG Qian,YAO Hu-qing.The Effect of Preparation Conditions on the Carbonylation performance of Nickel Catalyst[J].Natural Gas Chemical Industry,2007,32(4):12-15. |
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| Authors: | LIU Jin-hong ZHANG Qian YAO Hu-qing |
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| Affiliation: | 1. College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China; 2. Department of Chemical Engineering, Nantong Vocational College, Nantong 226007, China |
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| Abstract: | Effects of preparation factors on the catalytic activity of Ni/AC catalyst in gas-phase carbonylation of methanol were studied.The results showed that the specific surface area of the active carbon support was markedly increased after it was washed with water,and the support treated with the nitric acid of 0.4mol/L concentration could improve much the catalytic activity of Ni/AC catalyst.Both the conversion of methanol and the yield of carbonyl products reached the highest at 8% Ni loading.Little acetic acid was formed for the catalyst calcined in low temperature.The optimum calcining and reducing temperature were 450℃ and 550℃,respectively.High reducing temperature would cause the aggregation of some active centers and decrease catalytic activity. |
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| Keywords: | methanol gas-phase carbonylation nickel catalyst acetic acid |
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