Briefly describe the emergency shutdown steps for double-column distillation?

2015-11-28View Original

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Briefly describe the emergency shutdown steps for double-column distillation?

Reply #22015-11-28

Emergency shutdown of the double-tower distillation unit: This is not part of the normal shutdown procedure; it occurs suddenly during production when an accident happens, preventing continued operation and forcing a shutdown. 1) Immediately close the main steam valve and all steam inlet valves. 2) Cut off the power supply to each pump. 3) Stop feeding to the two towers and all extractions. 4) Stop adding the alkaline solution and extraction condensate water. 5) Residual liquid discharge valve. 6) Inlet valves for the pre-cooler, main tower condenser, pure methanol cooler, and fusel oil cooler (can remain open during short-term shutdowns).

Reply #32015-12-04

Stop the heat source, cease output and feed intake, stop the pumps, stop the cooling source, and isolate related factors.

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