CATALYST CARRIER AND EXHAUST GAS PURIFYING CATALYST

• Main Authors: IMADA, YASUNORI, NAKAHARA, YUNOSUKE
• Format: Patent
• Language: English; French; Japanese
• Published: 07.01.2016
• 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

The present invention relates to a catalyst carrier that contains an apatite-type composite oxide, and proposes a catalyst carrier which is capable of enhancing NOx removal performance by improving phosphorus poisoning. Proposed is a catalyst carrier which contains a composite oxide represented by composition formula (LaM1)9.33-δM26O27.00-γ (wherein 0.5 ≤ δ ≤ 3.0; 0.0 < γ ≤ 6.0; M1 includes Ba and Y; and M2 includes one or more elements selected from among Si, P and Fe). La présente invention concerne un support de catalyseur qui contient un oxyde composite de type apatite, le support de catalyseur permettant d'améliorer les performances d'élimination des NOx par l'amélioration de l'empoisonnement par le phosphore. Le support de catalyseur selon l'invention contient un oxyde composite représenté par la formule de composition (LaM1)9,33-δM26O27,00-γ (dans laquelle 0,5 ≤ δ ≤ 3,0 ; 0,0 < γ ≤ 6,0 ; M1 comprend Ba et Y ; et M2 comprend un ou plusieurs éléments choisis parmi Si, P et Fe). 　アパタイト型複合酸化物を含有する触媒担体に関し、リン被毒性の改善により、ＮＯｘの浄化性能を高めることができる触媒担体を提案せんとする。　組成式：（ＬａＭ１）９．３３-δＭ２６Ｏ２７．００-γ（式中、0.5≦δ≦3.0、0.0＜γ≦6.0、Ｍ１はＢａ及びＹを含み、Ｍ２はＳｉ、Ｐ及びＦｅの中から選ばれる一種又は二種以上を含む。）で表される複合酸化物を含有する触媒担体を提案する。