| 摘要 |
PURPOSE:To provide a catalyst having high exhaust gas purification ability for efficient removal of NOx from exhaust gas contg. excess oxygen as well as NOx and hydrocarbon. CONSTITUTION:This exhaust gas purification catalyst is a catalyst for removal of NOx from exhaust gas contg. excess oxygen as well as NOx and hydrocarbon, and contains Co, Pd and at least one among Mo, W and V in zeolite. |
