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Composite particles, honeycomb structure, method for manufacturing honeycomb structure, and exhaust gas purifying apparatus
Composite particles, honeycomb structure, method for manufacturing honeycomb structure, and exhaust gas purifying apparatus
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机译:复合粒子,蜂窝结构体,蜂窝结构体的制造方法以及废气净化装置
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摘要
An object of the invention is to provide composite particles that have excellent NOx purification performance and can suppress water adsorption-caused contraction and water desorption-caused expansion and to provide a honeycomb structure that has excellent NOx purification performance and can suppress the breakage of the honeycomb unit due to the adsorption or desorption of water, a method for manufacturing the honeycomb structure, and an exhaust gas purifying apparatus including the honeycomb structure. The composite particles of the invention are composite particles having a metallic oxide attached to silicoaluminophosphate particles with a ratio of an amount of Si to a sum of amounts of Al and P in a range of 0.16 to 0.33, in which a specific surface area is in a range of 250 m2/g to 450 m2/g, and an external surface area is in a range of 30 m2/g to 90 m2/g.
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机译:本发明的目的是提供一种具有优异的NOx净化性能并且可以抑制水吸附引起的收缩和水解吸引起的膨胀的复合颗粒,并且提供一种蜂窝结构,其具有优异的NOx净化性能并且可以抑制蜂窝的破裂。由于水的吸附或脱附而产生的单元,用于制造蜂窝状结构的方法以及包括该蜂窝状结构的废气净化装置。本发明的复合颗粒是具有附着在硅铝磷酸盐颗粒上的金属氧化物的复合颗粒,其中Si的量相对于Al和P的总量之比在0.16至0.33的范围内,其中250 m 2 Sup> / g到450 m 2 Sup> / g的范围,并且外部表面积在30 m 2 Sup> / g至90 m 2 Sup> / g。
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