Liquid in the dry gas desulfurization tower

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Our company has two dry gas desulfurization systems: one is a catalytic dry gas desulfurization tower, and the other is a coking dry gas desulfurization tower. Recently, the catalytic dry gas desulfurization tower has frequently experienced liquid entrainment (tower flooding), wherein the liquid level in the upper liquid collection tank rises rapidly, even carrying the amine solution into the subsequent amine recovery unit. The specific operating conditions are as follows: the system pressure is 0.87 Mpa; the pressure difference between the top and bottom of the tower is around -3 Kpa when normal, and around -10 Kpa when there is liquid present. The amount of dry gas stabilized by catalytic absorption is approximately 29,000 standard cubic meters, showing relative stability. The temperature of the dry gas entering the desulfurization tower is 33°C, and the temperature at the bottom of the desulfurization tower is 44°C, which is also relatively stable. The circulation volume of the amine solution is 45 tons. The concentration of the amine solution is around 30%. The amine solution used in the coking dry gas desulfurization tower and that used in the catalytic dry gas desulfurization tower both come from the same buffer tank, whereas this has never happened in the coking dry gas desulfurization tower. I would appreciate it if experts could give me some advice. Thank you!