| 添加硫酸根对燃煤电厂V2O5基脱硝催化剂性能的影响 |
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| 引用本文： | 陈玲霞,金保升,李锋,朱崇兵,刘涛.添加硫酸根对燃煤电厂V2O5基脱硝催化剂性能的影响[J].环境科学学报,2008,28(2):294-298. |
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| 作者姓名： | 陈玲霞 金保升 李锋 朱崇兵 刘涛 |
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| 作者单位： | 1. 东南大学洁净煤发电及燃烧技术教育部重点实验室,南京,210096;南通职业大学,南通,226001
2. 东南大学洁净煤发电及燃烧技术教育部重点实验室,南京,210096 |
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| 摘 要： | 采用浸渍法分别制得活性物质V2O5的含量均为1%和SO2-4的含量不同的催化剂,并通过实验研究了添加SO-24对燃煤电厂SCR法脱硝技术中V2O5基催化剂活性和热稳定性的影响.在固定床反应器上,在NH3/NOx物质的量比为1.0和模拟烟气流量为72 L·h-1条件下,对几种催化剂的活性进行了测试,结果显示,当负载加入5.01%的SO2-4或使用含有8.91%的SO-24载体制备催化剂时,催化剂的活性提高最为显著;在TGA 92热重.差热分析仪上对这两种催化剂进行了热重实验,结果表明,添加的硫酸根对催化剂的热稳定性也有一定提高,且不会影响电厂SCR催化剂的使用.
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| 关 键 词： | SCR 催化活性 NOx脱除率 热稳定性 |
| 文章编号： | 0253-2468（2008）02-294-05 |
| 收稿时间： | 2006-12-27 |
| 修稿时间： | 2007-05-26 |
Effect of added SO42- on the performance of V2O5-based deNOx catalysts |
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| CHEN Lingxi,JIN Baosheng,LI Feng,ZHU Chongbing and LIU Tao.Effect of added SO42- on the performance of V2O5-based deNOx catalysts[J].Acta Scientiae Circumstantiae,2008,28(2):294-298. |
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| Authors: | CHEN Lingxi JIN Baosheng LI Feng ZHU Chongbing and LIU Tao |
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| Institution: | 1. Key Laboratory of Clean Coal Power Generation and Combustion Technology of Ministry of Education, Southeast University, Nanjing 210096; 2. Nantong Vocational College, Nantong 226001,Key Laboratory of Clean Coal Power Generation and Combustion Technology of Ministry of Education, Southeast University, Nanjing 210096,Key Laboratory of Clean Coal Power Generation and Combustion Technology of Ministry of Education, Southeast University, Nanjing 210096,Key Laboratory of Clean Coal Power Generation and Combustion Technology of Ministry of Education, Southeast University, Nanjing 210096 and Key Laboratory of Clean Coal Power Generation and Combustion Technology of Ministry of Education, Southeast University, Nanjing 210096 |
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| Abstract: | Catalysts with the same V2O5 content and different SO2-4 contents were produced. Their DeNOx activities were experimentally investigated in a fixed-bed reactor where the mole ratio of NH3/NOx was 1.0 and the simulated flue gas flux was 72 L·h-1. The results showed that the deNOx activity was most enhanced when the mole ratio of the loading SO2-4 was 5.01% or the added SO2-4 in the TiO2 carrier was 8.91%. Thermogravimetric analysis was used to test the thermal stabilities of three catalysts. The added SO2-4 also enhanced the thermal stability of the catalysts, which would not affect the working of selective catalytic reduction (SCR) catalysts in electric power plants. |
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| Keywords: | SCR catalysis activity removal rate of NOx thermal stability |
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