Oxidation catalyst for exhaust gas purification, integral-type oxidation catalyst using the same, and exhaust gas purifying method
    52.
    发明专利
    Oxidation catalyst for exhaust gas purification, integral-type oxidation catalyst using the same, and exhaust gas purifying method 有权
    用于排气净化的氧化催化剂,使用其的一体型氧化催化剂和排气净化方法

    公开(公告)号:JP2007111625A

    公开(公告)日:2007-05-10

    申请号:JP2005305542

    申请日:2005-10-20

    摘要: PROBLEM TO BE SOLVED: To provide an oxidation catalyst for exhaust gas purification which is used to purify carbon monoxide, unburned hydrocarbon, soluble organic fraction, and soot exhausted from, particularly, a diesel engine, is hardly affected by catalyst poisoning due to sulfur, and can decrease a catalyst quantity, and exhausts little sulfate in a high temperature exhaust gas circulation, an integral-type oxidation catalyst, and an exhaust gas purifying method using the same. SOLUTION: The oxidation catalyst for exhaust gas purification comprises a silica-alumina system base material supporting a noble metal showing a catalyst activity against an oxidative reaction of hydrocarbon, and a zeolite. The integral-type oxidation catalyst in which the oxidation catalyst for exhaust gas purification is supported on an integral-type carrier is provided. The exhaust gas purifying method is characterized in that the integral-type oxidation catalyst is arranged at an exhaust gas flow path of the diesel engine to circulate the exhaust gas. COPYRIGHT: (C)2007,JPO&INPIT

    摘要翻译: 待解决的问题:为了提供用于净化一氧化碳,未燃烧的烃,可溶性有机馏分和特别是柴油发动机排出的烟灰的废气净化用氧化催化剂几乎不受催化剂中毒的影响 能够降低催化剂量,并且在高温排气循环中排出少量硫酸盐,一体式氧化催化剂和使用其的废气净化方法。 解决方案:用于废气净化的氧化催化剂包括负载贵金属的二氧化硅 - 氧化铝体系基材,显示出对烃的氧化反应的催化剂活性和沸石。 提供了其中用于排气净化的氧化催化剂负载在一体式载体上的整体式氧化催化剂。 排气净化方法的特征在于,一体式氧化催化剂配置在柴油发动机的排气流路上,使废气循环。 版权所有(C)2007,JPO&INPIT