At what concentration can the alcohol-washing water used in methanol synthesis be discharged into the crude alcohol pipeline?
Thread Content
May I ask everyone, what concentration of the alcohol-washing water used in methanol synthesis is required before it can be sent to the crude alcohol pipeline? Is it a continuous or intermittent operation?
Generally, a concentration of around 10% is required before it can be sent out, but it is usually sent out right away; with cyclic concentration, continuous delivery becomes impossible, which is rather troublesome. Direct delivery results in higher water consumption; there are no other significant effects.
It seems we don’t have any specific requirements. In our company, the operations are continuous, and the crude methanol coming out of the separator all goes into the crude methanol expansion tank.
There is no need to require a high concentration; it can be sent to the reflux tank or the crude alcohol tank.
It can be placed in the dilute alcohol tank; generally, 30% is sent out, as a lower percentage affects distillation.
Direct delivery means increasing the processing capacity of distillation; that’s all there is to it!