| HG—1型稀土氨合成催化剂作用机理探讨 |
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| 引用本文： | 林维明,黄传荣,甘世凡. HG—1型稀土氨合成催化剂作用机理探讨[J]. 华南理工大学学报(自然科学版), 1987, 0(1) |
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| 作者姓名： | 林维明 黄传荣 甘世凡 |
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| 作者单位： | 华南工学院化学工程系(林维明，黄传荣)，华南工学院化学工程系(甘世凡) |
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| 摘 要： | 本文着重探讨HG-1型稀土氨合成催化剂的表面结构和元素分布.发现在催化剂晶粒的基体中和边界上,主催化剂Fe和助剂Ce、K等的分布不均匀;在未经使用(未还原)催化剂中,Ce、K几乎都富集于边界上,使用过程中,助剂由边界向基体扩散,但Ce的扩散速度明显低于K;工业使用一年的HG-1型催化剂中未发现有元素硫的存在.上述结果很好地解释了稀土元素Ce对氨合成催化剂的活性的促进作用、抗衰老作用以及抗毒作用.
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| 关 键 词： | 氨 金属氧化物催化剂 稀土元素 促进剂 |
A RESEARCH OF MECHANISM ON THE HG-1 RARE EARTH AMMONIA CATALYST |
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| Lin Weiming,Huang Chuanrong and Gan Shifan The. A RESEARCH OF MECHANISM ON THE HG-1 RARE EARTH AMMONIA CATALYST[J]. Journal of South China University of Technology(Natural Science Edition), 1987, 0(1) |
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| Authors: | Lin Weiming Huang Chuanrong Gan Shifan The |
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| Affiliation: | Lin Weiming,Huang Chuanrong and Gan Shifan The Department of Chemical Engineering South China Institute of Technology |
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| Abstract: | The authors analyzed the distribution of compositions in the HG-1 ammonia catalyst promoted by RE oxide (developed successfully by the authors) with EPM. The authors adopted the results to explain the mechanism of additives effect on the activity of the catalyst and resistance to poisons, and to explain why the catalyst had a longer lifetime than the others. |
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| Keywords: | ammonia metal oxide catalyst rare earth clements promotor. |
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