发明名称 Catalyst for purifying exhaust gases
摘要 <p>An automotive exhaust catalyst includes a support, which is less likely to adsorb SOx contained in exhaust gases thereon, an NOx storage compound loaded on the support, and a noble metal element loaded on the support. The support is an alumina support with a Ti-Zr composite oxide loaded thereon, or is formed of a Ti-Zr or Ti-Zr-Y composite oxide. The composite oxide inhibits the NOx storage compound, which is selected from alkali metals, alkaline-earth metals and rare-earth elements, from being poisoned by sulfur, and enhances the thermal resistance of the support. Thus, the automotive exhaust catalyst can effectively purify NOx contained in lean-side exhaust gases, even after it is subjected to a thermal durability test.</p>
申请公布号 EP0707882(A1) 申请公布日期 1996.04.24
申请号 EP19950116599 申请日期 1995.10.20
申请人 TOYOTA JIDOSHA KABUSHIKI KAISHA;KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO 发明人 MIYOSHI, NAOTO;SUZUKI, HIROMASA;OGAWA, OSAMU;KIMURA, MAREO;KAWAI, YUZO;YOKOTA, KOJI;TAKAHASHI, NAOKI;TANAKA, TOSHIYUKI
分类号 B01D53/94;B01J23/58;B01J23/63;(IPC1-7):B01D53/94 主分类号 B01D53/94
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