| 催化剂组成对酸-碱交替沉淀法制备铜基甲醇合成催化剂的影响 |
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| 引用本文： | 岑亚青,郑遗凡,李小年,刘化章.催化剂组成对酸-碱交替沉淀法制备铜基甲醇合成催化剂的影响[J].现代化工,2006,26(3):46-49. |
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| 作者姓名： | 岑亚青 郑遗凡 李小年 刘化章 |
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| 作者单位： | 浙江工业大学催化研究所,绿色化学合成技术国家重点实验室培育基地,浙江,杭州,310032 |
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| 摘 要： | 采用酸-碱交替沉淀法制备了一种新型的低压甲醇合成催化剂。研究了催化剂组成的影响。当Al和Zr含量固定,随着Cu/Zn摩尔比的增加,催化剂活性先升高后下降,当Cu/Zn摩尔比为1时,活性最高。XRD结果表明,Cu/Zn摩尔比为1时制备的催化剂CuO与ZnO组分间相互均匀分散程度最大。Zr较明显地提高催化剂的活性和耐热性,Mn对催化剂的耐热性提高有一定的作用,La和Ce对提高催化剂活性的作用不大。
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| 关 键 词： | 甲醇合成 铜基催化剂 酸-碱交替沉淀法 Cu/Zn摩尔比 助催化剂 |
| 文章编号： | 0253-4320(2006)03-0046-04 |
| 修稿时间： | 2005年12月7日 |
Effect of catalyst composition on catalytic activity of copper-based catalysts for methanol synthesis prepared by alternant precipitation between acid and alkali |
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| CEN Ya-qing,ZHENG Yi-fan,LI Xiao-nian,LIU Hua-zhang.Effect of catalyst composition on catalytic activity of copper-based catalysts for methanol synthesis prepared by alternant precipitation between acid and alkali[J].Modern Chemical Industry,2006,26(3):46-49. |
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| Authors: | CEN Ya-qing ZHENG Yi-fan LI Xiao-nian LIU Hua-zhang |
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| Abstract: | A new catalyst for methanol synthesis was prepared by alternant precipitation between acid and alkali.It showed that the activity of catalysts increased first and then decreased with increasing Cu/Zn ratio,among which the maximum appeared at Cu/Zn=1.From XRD pattern it showed that the characteristic peaks of CuO and ZnO of the catalyst that Cu/Zn ratio was 1 were the most dispersed.Addition of Zr could increase the activity and thermal stability of catalyst obviously.Addition of Mn could increase the thermal stability of the catalyst.And addition of La and Ce could not influence the activity much. |
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| Keywords: | methanol synthesis copper-based catalysts precipitation method of alteration between acid and alkali (Cu/Zn) ratio promoter |
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