| NiB/Al_2O_3非晶态合金催化剂抗硫性能研究 |
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| 引用本文： | 张荣斌,李凤仪,石秋杰. NiB/Al_2O_3非晶态合金催化剂抗硫性能研究[J]. 江西科学, 2002, 0(2) |
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| 作者姓名： | 张荣斌 李凤仪 石秋杰 |
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| 作者单位： | 华南理工大学化工学院 广州510640(张荣斌)，南昌大学应用化学研究所 南昌330047(李凤仪)，南昌大学应用化学研究所 南昌330047(石秋杰) |
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| 基金项目： | 国家自然科学基金资助项目 (2 9963 0 0 1 )，江西省自然科学基金资助项目 (992 0 0 3 7) |
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| 摘 要： | 采用化学还原法制备了非晶态NiB合金及负载型非晶态NiB/Al2 O3合金 ,用浸渍法制备了Ni/Al2 O3催化剂。用ICP、BET、TPD及氢吸附等方法对催化剂进行了表征。以苯加氢为探针反应 ,以CS2 为毒物 ,对各催化剂的催化活性和抗硫性能进行了比较。研究结果表明 ,非晶态合金由于有更高的活性镍面积而表现出更高的催化活性及抗硫性能 ,载体能改善非晶态合金的性能 ,并对毒物有一定的吸附作用。在非晶态合金表面有三种中心 ,CS2 优先中毒高温吸附中心。
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| 关 键 词： | 非晶态合金 苯加氢 抗硫性能 载体 |
Study on the Sulfur Resistance Over Amorphous NiB/Al_2O_3 Alloy Catalyst |
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| ZHANG Rong_bin ,LI Feng_yi ,SHI Qiu_jie. Study on the Sulfur Resistance Over Amorphous NiB/Al_2O_3 Alloy Catalyst[J]. Jiangxi Science, 2002, 0(2) |
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| Authors: | ZHANG Rong_bin LI Feng_yi SHI Qiu_jie |
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| Affiliation: | ZHANG Rong_bin 1,LI Feng_yi 2,SHI Qiu_jie 2 |
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| Abstract: | Amorphous NiB alloy and supported amorphous NiB/Al 2O 3 alloy are prepared by chemical reduction.Ni/Al 2O 3 is prepared by impregnation.Some characterisitcs of catalysts are investigated by using ICP,BET,TPD and hydrogen adsorption.Benzene hydrogenation is used to evaluate the catalytic activity and carbon disulfide is used as the poison for comparing the sulfur resistance of catalysts.Experimental results show that amorphous alloy is good at catalytic activity and sulfur resistance due to higher active nickel areas on amorphous alloy.Support can improve the properties of amorphous alloy and adsorb poison to some extent.Three kinds of adsorption center exist on the surface of amorphous alloy.Carbon disulfide poisons the high temperature center prior to other centers. |
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| Keywords: | Amorphous alloy Benzene hydrogenation Sulfur resistance Support |
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