Hi, when designing a column using RADFRAC for a new process, for separation of hydrocarbons, after finding the minimum number of stages, feed location etc. you get to sizing of the column. When using sieve (or even valve trays) aspen plus column profile shows weeping in certain trays. I tried different tray types like Ballast trays, nutter valves etc. still weeping will not go away. the column is already converged. without changing operating conditions what handles do I have to reduce weeping or eliminate weeping messages in the software?
what are the design mode parameters you can play in column design mode to reduce weeping? The vapor/liquid traffic may be fixed prior to design, so i cannot change the operating condition sof the column much like reflux ratio etc.