| SO2及水蒸汽对新型钒氧化物脱氮催化剂活性的影响 |
| |
| 引用本文： | 戴华,叶代启,田柳青.SO2及水蒸汽对新型钒氧化物脱氮催化剂活性的影响[J].工业催化,2005,13(6):47-50. |
| |
| 作者姓名： | 戴华 叶代启 田柳青 |
| |
| 作者单位： | 华南理工大学环境科学与工程学院，广东 广州 510640 |
| |
| 基金项目： | 国家自然科学基金项目(29100028)，广东省自然科学基金项目(920111)，广东省重大科技项目(2KB0660IS) |
| |
| 摘 要： | 以TiO2/Al2O3/堇青石蜂窝陶瓷为载体、V2O5-MoO3-WO3为活性组分，采用溶胶-凝胶法和浸渍法制备了用于氨法选择性催化还原烟气中NO的新型催化剂，考察了SO2和水蒸汽对其脱氮活性的抑制作用。结果表明，SO2和水蒸汽对其活性抑制不明显，催化剂在最佳温度仍然能保持90%的脱氮率。运用红外表征手段对活性抑制后的催化剂表面进行研究，发现有微量的硫酸盐生成。
|
| 关 键 词： | 选择性催化还原 整体式催化剂 钒系催化剂 SO2抑制 水蒸汽抑制
|
| 文章编号： | 1008-1143(2005)06-0047-04 |
| 修稿时间： | 2005年4月21日 |
Influence of SO2 and vapor on the activity of a novel vanadium oxide NO reduction catalyst |
| |
| DAI Hua,YE Dai-qi,TIAN Liu-qing.Influence of SO2 and vapor on the activity of a novel vanadium oxide NO reduction catalyst[J].Industrial Catalysis,2005,13(6):47-50. |
| |
| Authors: | DAI Hua YE Dai-qi TIAN Liu-qing |
| |
| Affiliation: | Department of Environmental Science and Engineering, South China University of Technology,; Guangzhou 510640, China |
| |
| Abstract: | A novel V_2O_5-MoO_3-WO_3/TiO_2/Al_2O_3/cordierite catalyst prepared by sol-gel and impregnation method was investigated on its tolerance to SO_2 and vapor in selective reduction of NO with NH_3. The results indicated that the catalyst exhibited high tolerance to SO_2 and vapor, with little inhibition of its activity by SO_2 and vapor. De-NOx efficiency of 90% was attained at optimal temperature. IR characterization showed that there was traced sulfate formed on surface of the catalyst after its activity was inhibited. |
| |
| Keywords: | selective catalytic reduction(SCR) monolithic catalyst vanadium catalyst inhibition by SO_2 inhibition by vapor |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《工业催化》浏览原始摘要信息 |
|
点击此处可从《工业催化》下载全文 |
