| 耐高温焦炉煤气氨分解催化剂的研究 |
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| 引用本文： | 贾志轩,张晓宁,沈立嵩,汪强,朱志华,赫崇衡.耐高温焦炉煤气氨分解催化剂的研究[J].煤化工,2008,36(3). |
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| 作者姓名： | 贾志轩 张晓宁 沈立嵩 汪强 朱志华 赫崇衡 |
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| 作者单位： | 1. 华东理工大学,上海,200237
2. 马鞍山钢铁股份公司焦化分公司,马鞍山,243000 |
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| 摘 要： | 研究了经过改进的MgO载体对NH3分解活性和反应热稳定性的影响。在容易造成催化剂烧结的高温、水蒸气等条件下,对催化剂进行活性评价;通过超高温处理,观察催化剂活性下降情况,配合XRD分析结果以及SEM照片,发现通过ZrO2修饰载体和特定方法制备的催化剂,在高温下能够较好地抑制Ni、Co活性组分的烧结,具有良好的热稳定性。
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| 关 键 词： | 高温 氨分解 镍催化剂 MgO载体 ZrO2 |
Study on Thermo-stable Catalyst for Ammonia Decomposition at High Temperature |
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| Jia Zhixuan,Zhang Xiaoning,Shen Lisong,Wang Qiang,Zhu Zhihua,He Chongheng.Study on Thermo-stable Catalyst for Ammonia Decomposition at High Temperature[J].Coal Chemical Industry,2008,36(3). |
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| Authors: | Jia Zhixuan Zhang Xiaoning Shen Lisong Wang Qiang Zhu Zhihua He Chongheng |
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| Abstract: | Ammonia decomposition catalysts were prepared with different MgO materials as supporters,and the influence of the different materials on the activity and the thermo-stability of the catalyst for ammonia decomposition were investigated.These catalysts were continuously aged in an harsh condition of high temperature(up to 1 400℃) and steam atmosphere.The catalytic activities of different catalysts for NH3 decomposition after aging at high temperature were compared at performance temperature(1 280℃).The catalysts were characterized by XRD and SEM technics.The experiments show that Ni-Co/MgO catalyst modified by ZrO2 additive has high activity and thermo-stability. |
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| Keywords: | high temperature Ni catalyst MgO supporter ZrO2 |
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