For a kettle equipped with a top condenser, how should temperature rise issues be handled later on?
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For reactors equipped with a top condenser, degassing is usually taken into account during design, but sometimes the temperature rises towards the end of the reaction. Those who have experience working with large reactors – do any of you have any knowledge regarding controls for this issue?
The flow rate of the reactor circulation water was increased to its maximum, and the power of the reactor top condenser was also set at its maximum level; yet the temperature continued to rise. A stop agent was added manually every 5 minutes or so to monitor the temperature changes
Sometimes the condenser doesn’t exchange heat well, and increasing the power level doesn’t help either
Increasing the volume doesn’t work either; then a terminator needs to be added and observed
If the temperature gets out of control, take emergency action: stop the reaction, release pressure by venting, and add a terminator. What kind of production is this?
We use reactors with a capacity of 130; tailing issues generally only occur when the condenser stops working, and there are no problems under normal conditions. How long does the later stage of the reaction generally last? How much time is left until discharge?
Is the tailing effect in the later stage caused by an issue with the initiator ratio or insufficient heat exchange capacity during tank cooling? Can the heat exchange capacity of the kettle cooler reach the target value? Was the reactor cooling stopped because the foam level gauge was too high? Recommendation 1: Consider the initiator ratio. 2. Consider kettle cooling for cleaning, on the circulating water side and in the tube side. 3. Check the nitrogen exhaust pipe and the nitrogen exhaust volume setting. 4. Clean the jacket. 5. Various methods to protect the kettle top condenser, including regular coating on the kettle cooler and frequent flushing. 6. The foam level gauge must be accurate and functioning properly. 7. Check whether the indicators of the circulating water meet the requirements, as well as the test parameters and flow rate/pressure.