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Establishing the liquid level in low-temperature methanol washing

2009-03-25View Original

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When establishing the liquid level during the initial startup of low-temperature methanol washing, the wash tower needs to be pressurized to 5.0 MPA in order to start the lean methanol pump; however, if there is no liquid level in the wash tower, could there be air leakage? Does simply closing the downstream control valve and the inlet and outlet shut-off valves ensure no cross-ventilation?

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