Regarding the low-methane E16 heat load
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During the operation of the Linde low-temperature methanol wash process, the operation of unit E16 is also quite important. The methanol hydrate separated from V1, along with the methanol-poor stream coming from the C4 heat zone, undergo heat exchange; both streams then enter tower C5. The methanol hydrate separated from V1 passes through E16 before entering V9 for CO2 separation. There is one issue: in actual operation, frosting can occur in V9. Have any of you who work with this system encountered this problem?
No, it’s due to the low flow rate of the heat medium in E16!
If there is an excessive amount of liquid flowing in from V1, while the amount of reflux fluid going from the four towers to the five towers remains constant, this can lead to frosting, which is a result of an imbalance in heat levels and an issue related to the operation