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The company has a solvent recovery system; one of the towers is a dehydration tower (distillation tower). The product collected at the top of this tower is a water-containing mixed solvent, which needs to be sent to the second tower for further distillation. The light components are obtained from the top of that tower, while the heavy components and water are obtained from the bottom. Finally, the three towers are used to separately separate the Reorganization components from water again through distillation. Considering energy savings, I plan to change the full condensation method at the top of Tower 1 to partial condensation, with the condensed liquid being recycled back to Tower 1 to maintain equilibrium within the tower. The uncondensed vapor phase enters the second column directly; previously, the second column would heat the products from the first column using a reboiler to turn them into rising gas. In this way, throughout the entire process, less condensate water is used in one tower, which helps to save some energy consumption, and steam is also saved in the second tower. The initial idea is to modify the existing condenser in Tower 1; the gas pipeline that originally led to the catcher will be widened so that the gas can flow directly to the bottom of Tower 2. If necessary, a heat exchanger can be used for further heating in between. So how can a condenser that needs to be modified achieve separate condensation? Is it by reducing the heat exchange area? Lower cooling water flow rate? Or increase the temperature of the cooling water? What are the differences between them respectively? I hope the experts on this forum will be kind enough to share their insights. Thank you!