Life Evaluation Of The Co Shift Catalyst

It is said that chlorine poisoning, sulfur poisoning and sintering by heat are major factors of deactivation in a Cu-Zn type CO shift catalyst (3). Chlorine poisoning is excluded, because this process gas is not contaminated with chlorine. With our unique high performance desulfurization process, the steam reforming catalyst is not subjected to sulfur poisoning. Since the CO shift process is a downstream of the steam reforming process, it is almost unnecessary to consider sulfur poisoning of CO shift catalyst.

Accordingly, only sintering has to be taken into consideration as a main factor of deactivation. Thus it is important to accurately evaluate the elapsed time changes in the sintering level and the level of sintering required to satisfy the necessary performance of the

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