| 发明名称 | Exhaust gas treating catalyst and exhaust gas purification apparatus using the same | ||
| 摘要 | An exhaust gas treating catalyst further improved in denitrification performance is provided. It is an exhaust gas treating catalyst containing a complex oxide represented by the general formula ABO3, where the A-site is composed of a lanthanoid (La) and barium (Ba), and the B-site is composed of iron (Fe), niobium (Nb) and palladium (Pd). | ||
| 申请公布号 | US9174170(B2) | 申请公布日期 | 2015.11.03 |
| 申请号 | US200913126965 | 申请日期 | 2009.04.28 |
| 申请人 | MITSUBISHI HEAVY INDUSTRIES, LTD.;NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY | 发明人 | Katsuki Masatoshi;Fujii Shuuji;Ueda Atsushi;Yamada Yusuke |
| 分类号 | B01J23/40;B01D53/94;B01J23/00;B01J23/89;F01N13/00 | 主分类号 | B01J23/40 |
| 代理机构 | Birch, Stewart, Kolasch & Birch, LLP | 代理人 | Birch, Stewart, Kolasch & Birch, LLP |
| 主权项 | 1. An exhaust gas treating catalyst for reducing nitrogen oxides in an exhaust gas to purify the exhaust gas, the exhaust gas treating catalyst containing a complex oxide represented by a general formula ABO3, where the A-site is composed of a lanthanoid (La) and barium (Ba), the B-site is composed of iron (Fe), niobium (Nb), and palladium, and fulfills {LaxBa(1-x)} {FeyNb(1-y)}(1-z)PdzO3, where x is in a range of more than 0.30, but 0.95 or less, y is in a range of 0.07 or more, but 0.94 or less, and z is in a range of 0.01 or more, but 0.10 or less, and the complex oxide has such a structure that the barium functions as a NOx storing agent, and the niobium act on the palladium to accelerate NO oxidation and NOx reduction. | ||
| 地址 | Tokyo JP | ||