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Porous ceramics & catalyst carriers

多孔質セラミックス/触媒用担体

Porous ceramics are used as catalyst carriers and filter media in various forms. Catalyst carriers are used in the petrochemicals industry, while filter media are used for water and waste liquid treatment. Noritake has established technologies for controlling pore size distribution and specific surface areas in a sophisticated manner.

Porous ceramic and catalyst carrier manufacturing processes

製造概要

Porous ceramics and catalyst carriers

Catalyst carriers

Noritake's technology of controlling small pore size distributions and specific surface areas enables high activity and selectivity to be realized. Based on 30 years of experience, Noritake meets requirements for partial oxidation catalyst carriers destined for a variety of petrochemical businesses.

<Physical characteristics>

  8 mm dia. Ring
Apparent porosity 35-60%
Water absorption (%) 20-40%
Bulk specific gravity 1.5-2.0
Filling density 0.7-1.0kg/L
Crushing strength 50-150N
Specific surface area 0.1>-2.0m2/g

<Typical pore size distribution
for partial oxidation catalyst carriers.>

細孔径分布の例

<Chemical composition>

  (%)
Al2O3 80~99
SiO2 0.5~20
P2O5 0.3>
Fe2O3 0.2>
CaO 0.2>
MgO 0.1>
Na2O 0.2~0.5
K2O 1.0>

Porous ceramics

Provided with a wide range of pore size and large specific areas, porous ceramics developed for filter media use have excellent adsorption characteristics.

<Chemical composition> 

  (%)
C 0~10
Al2O3 30~45
SiO2 25~35
P2O5 5~10
Fe2O3 1~2
CaO 1~2
MgO 2~4
Na2O 1>
 K2O  1~2

<Typical pore size distribution for porous ceramics>

多孔体細孔径分布の例