发明名称 |
Cu/zeolite SCR catalyst for NOx reduction in exhaust gases and manufacture method thereof |
摘要 |
The present invention describes a method of preparation and/or modification of Cu/zeolite catalysts designed for the SCR of nitrogen oxides with ammonia, including commercial catalysts. The method is comprising a removal of extra-lattice (extra-framework) aluminum species together with copper ions using citrate solution and a following re-insertion of copper or insertion of Cu/M ions, where M = Mg, Ca, Sr, La, Pr, B, Zr or Mg-Fe or Mg-Ce, using ion-exchange and/ or impregnation. The modified catalyst has improved and high NOx reduction properties at temperatures 170-600°C and excellent hydrothermal stability up to 900°C. |
申请公布号 |
EP2308596(B1) |
申请公布日期 |
2016.09.21 |
申请号 |
EP20090172402 |
申请日期 |
2009.10.07 |
申请人 |
FORD GLOBAL TECHNOLOGIES, LLC |
发明人 |
UKROPEC, ROBERT;CHIGAPOV, ALBERT;DUBKOV, ALEXEI;BALENOVIC, MARIO;REICHERT, MARTINA;CARBERRY, BRENDAN |
分类号 |
B01J29/072;B01D53/94;B01J29/46 |
主分类号 |
B01J29/072 |
代理机构 |
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代理人 |
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地址 |
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