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首页> 外国专利> PARTICULATE MATTER PURIFYING MATERIAL, FILTRATION CATALYST FOR PURIFYING PARTICULATE MATTER USING PARTICULATE MATTER PURIFICATION MATERIAL AND METHOD OF REGENERATION OF FILTER CATALYST TO PURIFY PARTICULATE MATTER.

PARTICULATE MATTER PURIFYING MATERIAL, FILTRATION CATALYST FOR PURIFYING PARTICULATE MATTER USING PARTICULATE MATTER PURIFICATION MATERIAL AND METHOD OF REGENERATION OF FILTER CATALYST TO PURIFY PARTICULATE MATTER.

机译：颗粒物纯化材料，使用颗粒物纯化材料纯化颗粒物的过滤催化剂和将催化剂再生为颗粒物的方法。

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A particulate matter purifying material is used for a filter catalyst for purifying particulate matter that is disposed in an exhaust gas flow path of an internal combustion engine, traps the particulate matter in exhaust gas generated in the internal combustion engine, and burns the particulate matter to be deposited, so as to be regenerated. The particulate matter purifying material includes an oxide containing cerium (Ce) having an oxygen storage-release capacity, and at least one metal (Me) selected from the group consisting of Zr, Y, La, Pr, Sr, Nb and Nd, wherein a content ratio (Ce:Me) of cerium to the metal is 6:4 to 9:1 in terms of an atomic ratio, and a degree of crystallinity (CR) represented by the following formula (1) is within a range of 25 to 60%: Degree of crystallinity CR = I / I 0 × 100 % wherein I represents an X-ray diffraction peak intensity with regard to a (111) plane of a CeO 2 phase in the particulate matter purifying material, and I 0 represents the X-ray diffraction peak intensity with regard to the (111) plane of the CeO 2 phase after the particulate matter purifying material is baked in air at 1000 °C.
机译：颗粒物净化材料用于设置在内燃机的排气流路中的，用于净化颗粒物的过滤催化剂，将颗粒物捕集在内燃机产生的排气中，并将颗粒物燃烧至沉积，以便再生。颗粒物净化材料包括具有氧存储释放能力的包含铈的氧化物（Ce），以及选自Zr，Y，La，Pr，Sr，Nb和Nd的至少一种金属（Me），其中铈与金属的含量比（Ce：Me）以原子比计为6：4至9：1，并且由下式（1）表示的结晶度（CR）在25的范围内〜60％：结晶度CR ＝ I / I 0×100％其中，I表示颗粒物净化材料中相对于CeO 2相的（111）面的X射线衍射峰强度，I 0表示在1000℃的空气中烘烤了颗粒物净化材料之后，关于CeO 2相的（111）面的X射线衍射峰强度。

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