| 焙烧处理对甲醇合成催化剂结构的影响 |
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| 引用本文： | 郭平均,赵正康,杨菊群.焙烧处理对甲醇合成催化剂结构的影响[J].煤化工,2012,40(1):34-36. |
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| 作者姓名： | 郭平均 赵正康 杨菊群 |
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| 作者单位： | 上海焦化有限公司,上海,200241 |
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| 摘 要： | 采用共沉淀法制备甲醇合成催化剂,研究了沉淀前驱体的制备过程。XRD表明沉淀前驱体主要为(Cu,Zn,Al)的碱式碳酸盐物相。采用TG/MS分析沉淀前驱体的热分解行为,发现其失重过程主要发生在250℃左右。提高焙烧温度会促进前驱体分解完全,导致比表面积的显著变化和Cu晶粒的长大。
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| 关 键 词： | 甲醇合成 催化剂 Cu-Zn-Al 共沉淀 |
Impact of Calcination Treatment on the Structure of the Methanol Synthesis Catalyst |
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| Guo Pingjun
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Zhao Zhengkang
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Yang Juqun.Impact of Calcination Treatment on the Structure of the Methanol Synthesis Catalyst[J].Coal Chemical Industry,2012,40(1):34-36. |
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| Authors: | Guo Pingjun Zhao Zhengkang Yang Juqun |
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| Affiliation: | (Shanghai Coking Chemical Co.,Ltd.,Shanghai 200241,China) |
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| Abstract: | The preparing process of precipitation precursors was studied for the methanol synthesis catalyst.The precursors are mainly Cu-Zn-Al hydroxycarbonates as revealed by the XRD pattern.The decomposition process was investigated with the TG/MS technique,which showed that the loss of weight happened at around 250 ℃.Increasing the calcination temperature could promote the decomposition of the precursors,which resulted in the great change of surface area and growing up of Cu crystals. |
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| Keywords: | methanol synthesis catalyst Cu-Zn-Al co-precipitation |
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