The SHU reactor cannot reach the desired temperature
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I’m having trouble increasing the SHU temperature in my company. Some time ago, the temperature of the medium-pressure steam reached 260 degrees, which is slightly above the recommended level. Is it possible that diene coking leads to poor heat exchange efficiency? Thank you
Are metal ions in the raw materials tested, and are their levels above the allowed limits?；
Is the pressure difference before and after the preheater subject to large fluctuations? If it gets too large, coking will occur; by keeping the steam temperature in the preheater below 200°C from the beginning, the coking cycle can be **extended!
Can’t increase the temperature in the pre-hydrogenation reactor? ? Coking is determined by observing the pressure difference; changes in the pressure difference in the reactor and heat exchanger, along with high temperatures of medium-pressure steam over short periods of time, indicate a low likelihood of coking ； If the pressure difference is not significant, check whether there is leakage in the cold bypass ? If there is no leakage, check the changes in steam volume or the temperature of the intermediate heat exchanger to determine whether there is a problem with the heat source. Especially in cases where medium-pressure steam is temperature-regulated using deoxygenated water, a large amount of this deoxygenated water may enter, leading to difficulties in raising the temperature
Can’t lift it at the entrance? I can help you come up with a plan: P