Sudden increase in resistance in the methanol synthesis tower
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The diol system was out of use for two months and has now been put back into operation for a week. One circulation pump has been operating throughout this time; after adding another circulation pump, the resistance in the synthesis tower rose to 40 kg/cm2 in less than half an hour. What caused it? This post was last edited by *aoye613 on 2009-2-17 09:06]
It may be that the increase in circulation rate is too rapid, resulting in damage to the internal components, such as deformation of the heat exchanger.
Is it the excessive volume of the primary circulation that causes an increase in synthesis resistance? The current of the circulation machine shouldn’t exceed a certain level; I’m not sure what type of tower you have
As the flow rate increases, the system resistance certainly increases as well
A pressure difference of 40 kg/cm2 is indeed quite high; it could be due to high pressure and large flow rates, or perhaps prolonged downtime of the system, which leads to an abrupt increase in pressure. As a result, the internal components of the equipment or certain valves may get damaged or clogged. I’m not sure what the manufacturing process is
Is it the gauge that’s broken? You can check the gauge.
The cause has been identified: severe catalyst pulverization led to a large amount of catalyst ash entering the tower’s heat exchangers, water cooling systems, and alcohol separation units, causing blockages. Solution: Stop the system and blow out the catalyst ash inside the tower and the equipment to see if production can be maintained. The treatment is not yet complete, and the operating conditions will be monitored.