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CN103282327B 多孔陶瓷蜂窝体制品及其制造方法 有权

多孔陶瓷蜂窝体制品及其制造方法
摘要：
一种多孔陶瓷蜂窝体制品，其包含由堇青石陶瓷形成的蜂窝体，其中所述蜂窝体的孔隙率P%≥55%，并且孔通道密度CD≥150cpsi。多孔通道壁的壁厚为T，T满足如下关系：(11+(300-CD)*0.03)≥T≥(8+(300-CD)*0.02)，中值孔径≤20微米，孔径分布的d因子≤0.35。所述蜂窝体的比孔体积VP≤0.22。当涂覆了100g/L修补基面涂覆催化剂并负载5g/L的烟炱之后，26.5立方英尺/分钟的流速下多孔陶瓷蜂窝体制品的涂覆压降的增加≤8kPa。
摘要（英）：

A porous ceramic honeycomb article comprising a honeycomb body formed from cordierite ceramic, wherein the honeycomb body has a porosity P %>=55% and a cell channel density CD >=150 cpsi. The porous channel walls have a wall thickness T, wherein (11+(300-CD)*0.03)>=T>=(8+(300-CD)*0.02), a median pore size @20 microns, and a pore size distribution with a d-factor of @0.35. The honeycomb body has a specific pore volume of VP@0.22. The porous ceramic honeycomb article exhibits a coated pressure drop increase of @8 kPa at a flow rate of 26.5 cubic feet per minute when coated with 100 g/L of a washcoat catalyst and loaded with 5 g/L of soot.

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