Reducing the side distillate volume (when other conditions remain unchanged) will cause the side oil to dry out ( ).
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Reducing the side distillate volume (when other conditions remain unchanged) will cause the side oil to dry out ( ). A. rise ； B. Decline ； C. Help me choose and explain.
B. Decline； To reduce the amount of side distillation, the distillate must be pressed down, and the heavy components will enter the lower side line. The tail will be lighter, the dry point will be lowered, and the distillation range will also be narrowed.
Choose B. If the dry point of the side stream product is high, the distillation volume of the side stream can be reduced to make the product lighter and the dry point lowered. ； The product dry point can also be lowered by lowering the side stream outlet temperature, or the side stream outlet temperature can be affected by lowering one or the top distillation temperature and the distillation amount, thereby affecting the product dry point. This post was last edited by maysee on 2007-12-24 08:19 ]
What you are talking about is the semi-extraction outlet, which is itself a means of adjusting the side line product. After reducing the extraction, the remaining liquid phase components serve as internal reflux, which is equivalent to increasing the reflux volume. When other conditions remain unchanged, the distillation effect is increased and the dry point of the side line oil is reduced.
It should be decreasing. If you think about it conversely, increasing the amount of extraction will increase the dry point temperature! In addition, reducing the amount of extraction will definitely change the extraction temperature.
B. Decline； Because the side draw volume is reduced, the side draw temperature will decrease.