All-fluid-phase hydrogenation
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For the all-liquid-phase diesel hydrogenation process, how can the temperature of the reactor be reduced quickly in emergency situations, and under what circumstances is it necessary to lower the reactor temperature? For example, disruptions in the supply of new hydrogen or raw materials – what are the different approaches to handling accidents in this context compared to traditional hydrogenation processes?
To lower the temperature, use the cold oil pump to supply more cold oil, turn off the heating furnace, and switch to a higher voltage line. Reduce processing volume, switch to straight-run oil
The reactor is equipped with a safety valve and an emergency pressure relief device.
In general, for full liquid-phase hydrogenation, hydrogen is mixed with the oil in a mixer located before the reactor; to ensure adequate reaction depth, a separate hydrogen heating device is used. For an emergency cooling, I think one approach is to turn off the hydrogen heating device, and the other is to shut down the furnace.
Emergency pressure relief is required during overheating; emergency pressure relief is generally used to protect the catalyst