NITROGEN OXIDE PURIFICATION CATALYST AND METHOD FOR PRODUCING THE SAME

• Main Authors: CHEN HAIJUN, KAKIUCHI HIROYUKI, NISHIOKA DAISUKE, OSHIMA KAZUNORI, TAKEWAKI TAKAHIKO, MATSUO TAKESHI
• Format: Patent
• Language: English; Japanese
• Published: 21.04.2016
• 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 a nitrogen oxide purification catalyst having high purification ability for nitrogen oxides and a simple and efficient production method with reduced load of waste liquid in the production of the catalyst, and further to provide a catalyst having high purification ability for nitrogen oxides without using expensive precious metals in a catalyst containing zeolite capable of purifying nitrogen oxides.SOLUTION: There is provided a method for producing a nitrogen oxide purification catalyst in which a metal having catalyst activation ability is carried on zeolite prepared by a hydrothermal synthesis using a silicon atom raw material, an aluminum atom raw material, a phosphorus atom raw material and two or more compounds as a template.SELECTED DRAWING: None 【課題】窒素酸化物の浄化性能の高い排気ガス浄化用触媒の提供、および前記触媒の製造において、簡便で効率がよく、廃液負荷も少ない製造方法を提供すること、また、窒素酸化物を浄化することができるゼオライトを含む触媒において、高価な貴金属類を使用することなく、窒素酸化物の浄化性能の高い触媒の提供を課題とする。【解決手段】本発明は、ケイ素原子原料、アルミニウム原子原料、リン原子原料およびテンプレートとして２種以上の化合物を用い、水熱合成してゼオライトを製造したゼオライトに、触媒活性能を有する金属を担持させることを特徴とする窒素酸化物浄化用触媒の製造方法に関する。【選択図】なし