Testing of a Ni‐Al 2 O 3 Catalyst for Methane Steam Reforming Using Different Reaction Systems
Abstract Ni‐Al 2 O 3 catalyst activity was tested for methane steam reforming using two different reaction systems: a catalyst particle bed (0.42–0.5 mm catalyst particles diluted in SiC) with a surface area‐to‐volume ratio SA/V of 910 m –1 and a porosity ϵ of 52 % and a catalyst‐coated metal monoli...
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| Published in | Chemical engineering & technology Vol. 35; no. 4; pp. 720 - 728 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
01.04.2012
|
| Online Access | Get full text |
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| Summary: | Abstract
Ni‐Al
2
O
3
catalyst activity was tested for methane steam reforming using two different reaction systems: a catalyst particle bed (0.42–0.5 mm catalyst particles diluted in SiC) with a surface area‐to‐volume ratio SA/V of 910 m
–1
and a porosity ϵ of 52 % and a catalyst‐coated metal monolith with an SA/V of 3300 m
–1
and an ϵ of 86 %. Under a steam‐to‐carbon ratio of 2.5 and at a temperature of 700 °C, the highest specific reaction rates were found for the catalyst‐coated monolith. The high SA/V and ϵ, together with the high rate of heat transfer of the metal monolith were found to be responsible of this optimum behavior. However, in both systems, the Ni‐Al
2
O
3
catalyst suffered a catalyst deactivation during operation. |
|---|---|
| ISSN: | 0930-7516 1521-4125 |
| DOI: | 10.1002/ceat.201100348 |