Daily Question: Methanol Technology Exchange Edition 20180706
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Thermal aging of methanol synthesis catalysts refers to the aggregation and growth of active copper crystals, which in turn block the catalyst’s micropores and reduce its available volume. Therefore, in actual methanol production, it is crucial to control excessive heating of the catalyst. In addition to regulating the inlet temperature and removing the heat of reaction through by-product steam, we also need to utilize the flow rate of the recycled gas to carry away this heat. Adjusting the appropriate amount of recycle gas and maintaining an appropriate space velocity are of great importance for the synthesis process.
Regarding catalyst aging, grain growth is just one form of aging