EXHAUST GAS PURIFICATION FILTER AND METHOD FOR MANUFACTURING THE SAME AND EXHAUST GAS PURIFICATION DEVICE

• Main Authors: UETANI MASATOSHI, MISHIMA TAKAHIRO
• Format: Patent
• Language: English; Japanese
• Published: 20.06.2016
• Subjects: BLASTING; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; STEAM ENGINES; THEIR RELEVANT APPARATUS; TRANSPORTING; WEAPONS

PROBLEM TO BE SOLVED: To provide an exhaust gas purification filter that can support a catalyst by a simple method without impregnating a filter into a solution including a catalyst particle or coating a filter with a solution including a catalyst particle after manufacturing an exhaust gas purification filter and has high NOx reduction efficiency, to provide a method for manufacturing the filter and to provide an exhaust gas purification device having the filter.SOLUTION: The exhaust gas purification filter is manufactured by sintering a molded product formed from a mixture including zeolite and a raw material particle as a carrier and after sintering, an alkali metal at an ion exchange site of zeolite is exchanged for a transition metal.SELECTED DRAWING: None 【課題】排ガス浄化フィルタの作製後に触媒粒子を含む溶液に含浸又は触媒粒子を含む溶液を塗布することなく、簡便な方法で触媒を担持させることができ、ＮＯｘ還元効率が高い排ガス浄化フィルタ及びその製造方法、並びに該フィルタを備えた排ガス浄化装置を提供する。【解決手段】ゼオライトと担体の原料粒子とを含む混合物からなる成形体を焼結することにより形成した排ガス浄化フィルタであって、焼結後に、ゼオライトのイオン交換サイトのアルカリ金属を遷移金属に交換したことを特徴とする。【選択図】なし