The difference between cyclic reflux and cold reflux
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Could some buddy explain it to me, as in as detailed as possible? I’ll give you a red flower as a reward
Cold reflux (subcooled liquid reflux) – After the vapor phase distillate at the top of the tower is completely condensed in a condenser, it is cooled below its bubble point temperature, resulting in a subcooled liquid. Using this subcooled liquid as reflux is referred to as cold reflux. Circulating reflux is the liquid that is drawn out of the tower, cooled, and then pumped back into the tower.
Circulating reflux is a standard adjustment method, while cold reflux is used when circulating reflux fails to lower the temperature, and it is very effective
Cold reflux (subcooled liquid reflux) – After the vapor phase distillate at the top of the tower is completely condensed in a condenser, it is then cooled below its bubble point temperature, resulting in a subcooled liquid. Using this subcooled liquid as reflux is known as cold reflux. Circulating reflux is isothermal reflux
Cold reflux – After the distillate in the tower is completely condensed in the condenser, it is then used as reflux, which is referred to as cold reflux liquid. Circulating reflux involves pumping the hot liquid drawn from the tower back into the tower.
Does that mean the degree of cooling in this cyclic flow is not as great as that in cold recirculation?
Cold reflux – After the distillate in the tower is completely condensed in the condenser, it is then used as reflux, which is referred to as cold reflux liquid. Circulating reflux involves pumping the hot liquid drawn from the tower back into the tower.
The original poster should now understand the difference. The most important difference is that the components are different
Cold reflux generally refers to the reflux of subcooled liquid, with the vapor at the top of the tower being cooled to below 40 degrees Celsius; circulating reflux involves drawing out a portion of the liquid phase from a certain tray in the tower, cooling it through heat exchange, and then injecting it into the trays located a few layers below.
Cold reflux involves phase change, while cyclic reflux does not; therefore, cold reflux of the same mass has a greater effect than cyclic reflux