VCM device re*** question

Is this the calcium carbide method? When posting the topic, please make a distinction: ethylene method or calcium carbide method?

Got it, thanks for the advice, senior. This is the calcium carbide method

1. Why is it necessary to drain water from the liquid-phase monomer before distillation? To reduce the consumption of solid alkali, lower the load on the high tower, and prevent freezing in the subsequent systems. 2. What are the basic tasks of the distillation unit? Ensure qualified products. 3. What are the shutdown steps for the distillation unit? Stop the compressor to maintain pressure. 4. Why must the pressure in front of the machine be kept at a positive level? What are the causes of negative pressure? Air may enter under negative pressure, posing a safety risk. 5. Why is it necessary to visit the tail cooler regularly? Under what circumstances is it necessary to go to the tail cooler? All those I’ve come across are types of processes for tail cooling. What are the reasons for the large variations in the flow rate of the raw gas in pressure swing adsorption? What impact does high traffic have on the proper operation of the backend system? How to make adjustments? The distillation cooling effect is poor; there are many low-boiling substances, and there is a lot of nitrogen at the start of operation. High flow rates have a slight impact on pressure swing adsorption, resulting in increased load and unqualified exhaust gas. 7. What are the working principles of pressure swing adsorption and hydrogen adsorption? Working principle of repeated adsorption and desorption 8. What are the reasons for excessive acetylene content in the monomer? The low tower does not perform well: the temperature is low, or the pressure is high, resulting in excessive conversion of acetylene. 9. Why is compression necessary before monomer distillation? After compression, only a small amount of cooling is required to liquefy it