{"id":248048,"date":"2023-03-20T06:20:02","date_gmt":"2023-03-19T22:20:02","guid":{"rendered":"\/\/m.iemloyee.com\/?p=248048"},"modified":"2023-03-17T10:25:25","modified_gmt":"2023-03-17T02:25:25","slug":"%e4%b8%8a%e6%b5%b7%e7%94%b5%e5%8a%9b%e5%a4%a7%e5%ad%a6%e9%83%ad%e7%91%9e%e5%a0%82%e6%95%99%e6%8e%88%e8%af%be%e9%a2%98%e7%bb%84fuel%ef%bc%9anb%e6%94%b9%e6%80%a7%e7%9a%84cuceox-%e5%82%ac%e5%8c%96","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=248048","title":{"rendered":"\u4e0a\u6d77\u7535\u529b\u5927\u5b66\u90ed\u745e\u5802\u6559\u6388\u8bfe\u9898\u7ec4Fuel\uff1aNb\u6539\u6027\u7684CuCeOx \u50ac\u5316\u5242\u5bf9\u4f4e\u6e29NH3-SCR\u6280\u672f\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539f NO\u7684\u4fc3\u8fdb\u4f5c\u7528"},"content":{"rendered":"
\u4e00\u3001<\/b><\/strong>\u3010<\/b><\/strong>\u5bfc\u8bfb<\/b><\/strong>\u3011<\/b><\/strong><\/p>\n \u00a0 \u00a0 NO\u662f\u4e3b\u8981\u7684\u5de5\u4e1a\u70df\u6c14\uff0c\u5176\u6392\u653e\u4f1a\u5bf9\u751f\u6001\u73af\u5883\u9020\u6210\u4e25\u91cd\u6c61\u67d3\uff0c\u4e0d\u4ec5\u4f1a\u5f15\u8d77\u5149\u5316\u5b66\u96fe\u973e\uff0c\u8fd8\u4f1a\u4ea7\u751fPM10<\/sub>\u548cPM2.5<\/sub>\u7b49\u9897\u7c92\u7269\uff0c\u4e25\u91cd\u635f\u5bb3\u4eba\u4eec\u7684\u5065\u5eb7\u3002\u5229\u7528NH3<\/sub>-SCR\u6280\u672f\u9009\u62e9\u6027\u50ac\u5316\u8fd8\u539fNO\uff0c\u5177\u6709\u8f83\u9ad8\u7684NO\u8f6c\u5316\u7387\u548c\u6ca1\u6709\u4e8c\u6b21\u6c61\u67d3\u7684\u4f18\u52bf\uff0c\u662f\u76ee\u524d\u6700\u6210\u719f\u3001\u6700\u6709\u6548\u7684\u8131\u785d\u6280\u672f\u3002\u5176\u4e2d\uff0c\u5546\u7528\u7684V2<\/sub>O5<\/sub>-WO3<\/sub>\uff08MoO3<\/sub>\uff09\/TiO2<\/sub>\u50ac\u5316\u5242\u5728\u53bb\u9664NO\u65b9\u9762\u5177\u6709\u826f\u597d\u7684\u6027\u80fd\uff0c\u5728\u70df\u6c14\u8131\u785d\u9886\u57df\u5177\u6709\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u4f46\u4ecd\u7136\u5b58\u5728\u4e00\u5b9a\u7684\u5c40\u9650\u6027\uff0c\u5982\u5de5\u4f5c\u6e29\u5ea6\u8303\u56f4\u8f83\u7a84\uff08350-400\u2103\uff09\uff0cVOx<\/sub>\u7684\u751f\u7269\u6bd2\u6027\u4e25\u91cd\uff0cSO2<\/sub>\u7684\u5b58\u5728\u6781\u5bb9\u6613\u5f62\u6210\u786b\u9178\u6c22\u94f5\u76d0\uff0c\u5bfc\u81f4\u50ac\u5316\u5242\u90e8\u5206\u5931\u6d3b\u3002\u56e0\u6b64\uff0c\u63a2\u7d22\u5728\u4f4e\u6e29\u8303\u56f4\u5185\u7814\u5236\u5177\u6709\u9ad8\u6d3b\u6027\u3001\u8010SO2<\/sub>\u80fd\u529b\u5f3a\u7684\u65b0\u578bNH3<\/sub>-SCR\u50ac\u5316\u5242\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002<\/p>\n \u00a0 \u00a0 \u76ee\u524d\uff0c\u8bb8\u591a\u8fc7\u6e21\u91d1\u5c5e\u6c27\u5316\u7269\u50ac\u5316\u5242\u4f53\u7cfb\uff0c\u5982CeO2<\/sub>-MnOx<\/sub>\u00a0\u3001CeO2<\/sub>-TiO2<\/sub>\u00a0\u3001CuO-MnOx<\/sub>\u00a0\u548cCeO2<\/sub>-CuO \uff0c\u5728\u4f4e\u6e29NH3<\/sub>-SCR\u6280\u672f\u4e2d\u5f97\u5230\u4e86\u5e7f\u6cdb\u7684\u7814\u7a76\u3002\u4f46\u662f\u8fd9\u7c7b\u50ac\u5316\u4f53\u7cfb\u4ecd\u7136\u5b58\u5728\u5de5\u4f5c\u6e29\u5ea6\u8303\u56f4\u72ed\u7a84\u7684\u95ee\u9898\uff0c\u8fd9\u6781\u5927\u7684\u9650\u5236\u4e86\u5176\u5728\u5de5\u4e1a\u4e2d\u7684\u5e94\u7528\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898,\u7814\u7a76\u4eba\u5458\u6dfb\u52a0\u4e86\u7b2c\u4e09\u79cd\u91d1\u5c5e\u5143\u7d20\u5230\u50ac\u5316\u4f53\u7cfb\u4e2d\uff0c\u8fd9\u4e9b\u8fc7\u6e21\u91d1\u5c5e\u6c27\u5316\u7269\u4e2dNbO\u56e0\u5176\u8f83\u5f3a\u7684\u9178\u6027\u548c\u6c27\u5316\u8fd8\u539f\u80fd\u529b\u5f97\u5230\u4e86\u5e7f\u6cdb\u7684\u7814\u7a76\uff0c\u4f46\u50ac\u5316\u5242\u5728\u4f4e\u6e29\u4e0b\u7684\u5f31\u6c34\u963b\u529b\u5374\u9650\u5236\u4e86\u5176\u5de5\u4e1a\u5e94\u7528\u3002\u56e0\u6b64\uff0c\u5229\u7528\u4e0d\u540c\u7684\u5236\u5907\u65b9\u6cd5\u5408\u6210\u4e00\u79cd\u5177\u6709\u9ad8\u6c34\u963b\u529b\u548c\u8f83\u5bbd\u6e29\u5ea6\u8303\u56f4\u7684NbCuCe\u50ac\u5316\u5242\u5df2\u7ecf\u5f97\u5230\u4e86\u5e7f\u6cdb\u7684\u7814\u7a76\u3002<\/p>\n <\/p>\n \u4e8c\u3001<\/b><\/strong>\u3010<\/b><\/strong>\u6210\u679c\u63a0\u5f71<\/b><\/strong>\u3011<\/b><\/strong><\/p>\n \u00a0 \u00a0 \u8fd1\u65e5\uff0c\u4e0a\u6d77\u7535\u529b\u5927\u5b66\u90ed\u745e\u5802\u6559\u6388\u8bfe\u9898\u7ec4\u91c7\u7528\u67e0\u6aac\u9178\u6cd5\u83b7\u5f97\u4e86\u4e0d\u540cNb\u63ba\u6742\u6bd4\u7684CuCeOx<\/sub>\u548cCuCeNbOx<\/sub>-k \uff0c\u5e76\u5e94\u7528\u4e8eNH3<\/sub>-SCR\u6280\u672f\u3002\u6d3b\u6027\u6d4b\u8bd5\u7ed3\u679c\u8868\u660e\uff0cNb\u7684\u6dfb\u52a0\u6709\u6548\u5730\u6539\u5584\u4e86\u4f4e\u6e29SCR\u6027\u80fd\u3002\u5176\u4e2d\uff0cCuCeNbOx<\/sub>-0.4\u50ac\u5316\u5242\u5177\u6709\u6700\u597d\u7684SCR\u6d3b\u6027,\u5728185-370\u2103\u4e0bNO\u8f6c\u5316\u7387\u5927\u4e8e90%\u3001\u6700\u9ad8\u7684N2<\/sub>\u9009\u62e9\u6027\u3001\u4f18\u5f02\u7684SO2<\/sub>&H2<\/sub>O\u963b\u529b\u548c\u70ed\u7a33\u5b9a\u6027\u3002\u5927\u91cf\u8868\u5f81\u5206\u6790\u8868\u660e\uff0cCuCeNbOX<\/sub>-0.4\u5177\u6709\u6700\u5927\u7684\u6bd4\u8868\u9762\u79ef\u3001\u6700\u5f3a\u7684\u8868\u9762\u9178\u6027\u548c\u6700\u4f18\u5f02\u7684\u6c27\u5316\u8fd8\u539f\u6027\u80fd\u3002\u539f\u4f4dDRIFT\u7ed3\u8bba\u8868\u660eNb\u4fee\u9970\u53ef\u4ee5\u4ea7\u751f\u66f4\u591a\u7684\u6d3b\u5316\u7269\u79cd\uff0c\u589e\u5f3aad-NH3<\/sub>\u548cad-NOX<\/sub>\u7684\u53cd\u5e94\u6d3b\u6027\uff0cCuCeNbOx<\/sub>-0.4\u4e0a\u7684SCR\u53cd\u5e94\u4e3b\u8981\u9075\u5faa Langmuir-Hinshelwood(LH)\u548c Eley-Rideal(ER\uff09\u673a\u5236\u3002\u6b64\u5916\uff0cNb\u63ba\u6742\u8fd8\u5f62\u6210\u4e86\u53cc\u6c27\u5316\u8fd8\u539f\u5faa\u73af\uff08Cu2+<\/sup>+Nb4+<\/sup>\u2194 Cu+<\/sup>+Nb5+<\/sup>\uff0cCu2+<\/sup>+Ce3+<\/sup>\u2194 Cu+<\/sup>+Ce4+<\/sup>\uff09,\u6709\u5229\u4e8e\u4f4e\u6e29SCR\u53cd\u5e94\u3002\u76f8\u5173\u7814\u7a76\u6210\u679c\u4ee5\u201cPromotional role of Nb modification on CuCeO<\/i><\/em>x<\/i><\/sub><\/em>\u00a0catalyst for low temperature selective catalytic reduction of NO with NH<\/i><\/em>3<\/i><\/sub><\/em>: A mechanism investigation<\/i><\/em>\u201d\u4e3a\u9898\u53d1\u8868\u5728Fuel<\/i><\/em>\u4e0a\u3002<\/p>\n <\/p>\n \u4e09\u3001<\/b><\/strong>\u3010<\/b><\/strong>\u6838\u5fc3\u521b\u65b0\u70b9<\/b><\/strong>\u3011<\/b><\/strong><\/p>\n \u00a0 \u00a0 Nb\u7684\u5f15\u5165\u589e\u52a0\u4e86Ce3+<\/sup>\u3001Cu2+<\/sup>\u548cO\u03b2<\/sub>\u7684\u6bd4\u503c\uff0c\u4fc3\u8fdb\u4e86\u53cd\u5e94\u7269\u7684\u6d3b\u5316\uff0c\u5e76\u901a\u8fc7\u5feb\u901fSCR\u53cd\u5e94\u63d0\u9ad8\u4e86\u6837\u54c1\u7684\u50ac\u5316\u6d3b\u6027\u3002\u539f\u4f4dDRIFT\u8c31\u8868\u660e\uff0cNb\u4fee\u9970\u589e\u5f3a\u4e86ad-NH3<\/sub>\u548cad-NOx<\/sub>\u7684\u53cd\u5e94\u6d3b\u6027\u3002\u6b64\u5916\uff0cNb\u7684\u63ba\u6742\u4e0d\u4ec5\u63d0\u9ad8\u4e86CuCeNbOx-0.4\u7684\u8868\u9762\u9178\u5ea6\uff0c\u8fd8\u5f62\u6210\u4e86\u53cc\u6c27\u5316\u8fd8\u539f\u5faa\u73af\uff08Cu2+<\/sup>+Nb4+<\/sup>\u2194 Cu+<\/sup>+Nb5+<\/sup>\uff0cCu2+<\/sup>+Ce3+<\/sup>\u2194 Cu+<\/sup>+Ce4+<\/sup>\uff09\uff0c\u63d0\u9ad8\u4e86\u50ac\u5316\u5242\u7684\u6c27\u5316\u8fd8\u539f\u6027\u80fd\uff0c\u4fc3\u8fdb\u4e86\u4f4e\u6e29SCR\u53cd\u5e94\u3002<\/p>\n <\/p>\n \u56db\u3001<\/b><\/strong>\u3010<\/b><\/strong>\u6570\u636e\u6982\u89c8<\/b><\/strong>\u3011<\/b><\/strong><\/p>\n \u56fe1 <\/b><\/strong>\u00a0(A) Nb<\/b><\/strong>2<\/b><\/sub><\/strong>O<\/b><\/strong>5<\/b><\/sub><\/strong>\u3001CuCeO<\/b><\/strong>x<\/b><\/sub><\/strong>\u548cCuCeNbO<\/b><\/strong>x<\/b><\/sub><\/strong>-k\u6837\u54c1<\/b><\/strong>\u7684<\/b><\/strong>SCR\u6d3b\u6027<\/b><\/strong>\u00a0<\/b><\/strong>(B) Nb<\/b><\/strong>2<\/b><\/sub><\/strong>O<\/b><\/strong>5<\/b><\/sub><\/strong>\u3001CuCeO<\/b><\/strong>x<\/b><\/sub><\/strong>\u548cCuCeNbO<\/b><\/strong>x<\/b><\/sub><\/strong>-k\u6837\u54c1<\/b><\/strong>\u5bf9N<\/b><\/strong>2<\/b><\/sub><\/strong>\u7684\u9009\u62e9\u6027\u3002\u53cd\u5e94\u6761\u4ef6\uff1a[<\/b><\/strong>NH<\/b><\/strong>3<\/b><\/sub><\/strong>]=[NO]=600ppm\uff0c5% O<\/b><\/strong>2<\/b><\/sub><\/strong>\uff0cAr\u4e3a\u5e73\u8861\uff0cGHSV=108,000h<\/b><\/strong>\u22121<\/b><\/sup><\/strong>\u00a0\u00a0<\/b><\/strong>\u00a9<\/b><\/strong>2022 Elsevier Ltd. <\/b><\/strong><\/p>\n <\/p>\n \u00a0 \u56fe2<\/b><\/strong>\u00a0<\/b><\/strong>\u00a0<\/b><\/strong>(A<\/b><\/strong>)CuCeO<\/b><\/strong>x<\/b><\/sub><\/strong>\u548cCuCeNbO<\/b><\/strong>x<\/b><\/sub><\/strong>-0.4\u6837\u54c1\u5bf9<\/b><\/strong>H<\/b><\/strong>2<\/b><\/sub><\/strong>O<\/b><\/strong>\u548cSO2\u7684\u6297\u6027<\/b><\/strong>\u00a0<\/b><\/strong>(B)CuCeO<\/b><\/strong>x<\/b><\/sub><\/strong>\u548cCuCeNbO<\/b><\/strong>x<\/b><\/sub><\/strong>-0.4\u6837\u54c1<\/b><\/strong>\u7684\u7a33\u5b9a\u6027\uff0c<\/b><\/strong>\u53cd\u5e94\u6761\u4ef6\uff1a600 ppm NO\uff0c600 ppm<\/b><\/strong>NH<\/b><\/strong>3<\/b><\/sub><\/strong>\uff0c5% O<\/b><\/strong>2<\/b><\/sub><\/strong>,<\/b><\/strong>\u00a0<\/b><\/strong>5%<\/b><\/strong>H<\/b><\/strong>2<\/b><\/sub><\/strong>O<\/b><\/strong>\u548c100ppmSO<\/b><\/strong><\/p>\n
<\/p>\n
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