On salt formation in distillation columns and heat distribution

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The salt formed is mainly ammonium chloride NH4Cl; its decomposition temperature is around 350°C, and it dissolves easily in hot water. The vapor pressure of oil and gas at the top of the tower is increasing, so salt formation is less likely there. Areas where salt formation is more likely to occur are near the oil collection tank at the top circulation return extraction plate. The salt formation phenomenon is characterized by an increase in tower pressure drop (from 35 Kpa to 45 Kpa), a low volume of reflux flow at the top, a tendency for the pump to experience vacuum conditions. It also leads to repeated instances where light diesel cannot be distilled out, poor separation between the layers obtained from the distillation of light diesel, a risk of backflow into the tower, a high dry point for gasoline, and a low flash point for diesel. The top temperature of the distillation tower tends to cause salt formation when it is below 110°C. Common methods to prevent salt formation include increasing the pressure at the top of the distillation tower and adding ammonium salt dispersants. Here comes the problem: reduce the heat taken from the primary circulation and reserve that heat for the return flow in the top circulation, thereby increasing the temperature at the tower top; meanwhile, cool the return flow appropriately to increase the gas-liquid load at the tower top. Is this plan feasible? Do anyone have any experiences or insights regarding online tower cleaning? I would appreciate any advice you can share.