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Flushing treatment for the blockage in the circulating hydrogen desulfurization tower of the hydrogenation unit

2023-06-14View Original

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1. Increase the circulation rate of the lean liquid to about 1.6 times (refer to the design value) in order to flush out coke powder or impurities. 2. The deionized water can be pumped into the desulfurization tower using a lean liquid pump for online flushing, in order to dissolve the thermally stable salts. Continue until the pressure difference decreases and the water output becomes clean.

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