Operation issues of the absorption stabilization system
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During the operation of the absorption and stabilization system, such a problem arises: the feed rate to the stripping tower is much higher than the discharge rate from the bottom of the tower (which violates material balance). The temperatures at the three temperature points inside the stripping tower are essentially the same. Under these conditions, it is difficult to control the liquid level at the bottom of the stripping tower, and this level continues to drop. The amount of gas being processed is very high, which causes the pressure in the separation tower to rise; however, the pressure in the stabilization tower is also high. What is the reason for this, and how can it be resolved?
This problem may be caused by uneven fluid flow within the parsing tower. First, it is necessary to check whether there is any backflow within the tower, that is, whether the liquid flows back from the bottom of the tower to the top, while the gas passes through the bottom of the tower along its normal flow path. This results in the discharge volume at the bottom of the tower being less than the feed volume, and it is difficult to control the liquid level. Additionally, it is necessary to check whether stratification occurs within the tower, that is, whether the light and heavy components separate within the tower, leading to uneven temperature distribution and increased pressure. It is recommended to adjust the feed position or add equipment inside the tower to promote fluid mixing, thereby solving the problem. .