How is the service life of a conversion catalyst calculated?
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How to calculate the service life of conversion catalysts: Z417 and Z418 catalysts
Do you calculate the service life there? It’s usually specified in the catalyst manual; generally, it depends on the CO2/CO content. If the temperature is increased and the level still doesn’t decrease, the catalyst must be replaced even before its service life is reached
The lifespan of conversion catalysts is generally three years
Look at the reaction temperature; it isn’t calculated. The catalyst manual specifies the final temperature for the reaction. If the reaction can continue, production should be maintained; if it can no longer proceed, it means it’s time to replace the catalyst, and further increasing the temperature is not possible at this point
Considering the actual situation, factors such as temperature rise and product quality need to be taken into account. After all, there is a difference between the materials provided to the design institute and those used in actual production; the materials used in production are certainly more complex than those supplied to the design institute. Catalyst manufacturers usually talk about a three-year period
The lifespan generally requires data provided by the manufacturer, along with information on the operating conditions; in most cases, it is three years. But now the factory undergoes a major overhaul every two years, and it’s not impossible to replace the agents as well
The most direct method is to check the temperature – whether the feed rate increases at the same production level, whether the temperature of the converter bed is normal, and whether the outlet temperature has changed. Those equipped with online analyzers can also check whether the methane content in the converted gas has increased.