When the wax oil hydrorefining unit is shut down urgently and the emergency pressure relief valve activates, how should the circulator and the fresh hydrogen compressor be operated?
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When the wax oil hydrorefining unit is shut down urgently and the emergency pressure relief valve activates, how should the circulator and the fresh hydrogen compressor be operated?
During an emergency shutdown, once the pressure relief valve activates, the new hydrogen compressor and the circulating hydrogen compressor will shut down in sequence. After shutdown, it is important to close the three-way valve associated with the new hydrogen compressor immediately, as well as the inlet and outlet valves of each compressor. The load on the compressors should be reduced to zero, and crank rotation should be carried out for ventilation purposes! It’s just my personal opinion; thanks for the advice!
When our plant is shut down urgently, manual confirmation is required for the two compressors; as for the circulator, it is necessary to keep it running for a while to use circulating hydrogen to remove the heat generated by the reaction
Emergency pressure relief is faster than cyclic pressure relief, preventing the accumulation of reactor temperature.
0.7 pressure release: new hydrogen generator at 0 load, hydrogen circulation pump continues to operate; 2.1 pressure release: complete shutdown