Why does amine solution foaming cause an increase in the pressure difference in the circulating hydrogen desulfurization tower?
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Why does amine solution foaming cause an increase in the pressure difference in the circulating hydrogen desulfurization tower?
Amine solution foaming leads to flooding, resulting in liquid accumulation inside the tower and an increase in pressure drop.
How is the pressure drop measured? Is there a dedicated differential pressure gauge, or are the pressures at the inlet and outlet of the desulfurization tower displayed as well? Thank you!
1. A dedicated differential pressure gauge is certainly much more sensitive than monitoring the inlet and outlet pressures of the desulfurization tower. 2. This is first manifested at the liquid level at the bottom of the tower, namely a sudden drop in the liquid level of the absorption tower over a short period of time – liquid can no longer enter. 3. For absorption towers, since the pressures at their inlet and outlet are relatively high, slight fluctuations in these pressures generally do not draw the attention of operators. However, in amine regeneration towers and sulfur off-gas absorption towers, the pressure changes caused by amine foaming are quite noticeable……