During the commissioning of my gasoline hydrogenation unit, the bottom pump of the pre-distillation tower often experiences vacuum conditions. Please help analyze the reasons for this
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During the commissioning of my gasoline hydrogenation unit, the bottom pump of the pre-distillation tower often experiences vacuum conditions. Please help analyze the reasons for this
There may be several reasons for the lack of flow: 1. The opening degree of the pump outlet valve is too large; it can be reduced slightly. 2. The lightness of the inhaled components causes the pump to evacuate. There may be other reasons as well.
The pre-fractionation bottom pump is presumably the reaction feed pump; at startup, it might be due to the bottom temperature not being adjusted properly, water in the bottom oil, or a clogged filter in the bottom pump
Generally, it’s caused by two reasons: the temperature not rising enough and the presence of water.
The bottom pump of the pre-fractionation tower isn’t the reaction feed pump, right? There’s also a raw material buffer tank. The reason for the reduced flow rate isn’t that the pump outlet is set wide open, as there’s a control valve in place to regulate it. I think it’s due to the lighter composition of the fluid, or perhaps the high pressure at the top of the tower, which results in a greater head pressure on the pump and thus better pumping performance