04833115 is referenced by 19 patents and cites 13 patents.

A ceramic catalyst carrier has a honeycombed structure which comprises a plurality of elongated parallel preferably square channels and thin, porous walls. The thickness of the walls is between 0.4 mm and 1.2 mm. The open cross-sectional area of the channels is greater than 80% of the total cross-section of the carrier body. Besides an intended low primary porosity, a secondary porosity is produced by an opening material. The pores of the secondary porosity which enlarge the active surface for the catalyst show a selected pore size distribution curve with negative skewness and a modal value ranging from 4,000 nm to 60,000 nm. The total true porosity amounts preferably between 50 and 70 Vol. % of the ceramic, whereby the ratio between total and secondary porosity is in the range of 1:1 to 6:1. By ceramic fibres the mechanical strength of the thin walls of the soft green clot and of the fired porous structure can be improved. According to the process the compounds are mixed to achieve a certain plasticity, aged and extruded to form a honeycombed structure which is thereupon dried and fired.

Title
Ceramic honeycombed elongated catalyst carrier and method for production of same
Application Number
7/98257
Publication Number
4833115
Application Date
September 18, 1987
Publication Date
May 23, 1989
Inventor
Willi Kunkel
Bochum
DE
Martin Heumuller
Bochum
DE
Walter Hartmann
Bochum
DE
Hans Joachim Koschlig
Bochum
DE
Agent
Thomas N Ljungman
Assignee
Dr C Otto Feuerfest
DE
IPC
B23B 3/12
B01J 21/04
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