Gas Vapor liquid systems - N.N. Kulov - książka wyd. 1996

Opis

1.6 Control tray selectionTemperature depends on both pressure and composition in vapor–liquid systems. Column temperature profiles depend on relative volatilities, product purities, RRs, the number of trays, and pressures on the trays (which depend on tray pressure decreases and the pressure in the reflux drum). If relative volatilities are large, there will be large temperature differences from tray to tray in the regions of the column where compositions are changing rapidly. These trays are usually good locations to infer composition from temperature. If relative volatilities are small, the temperature profile will be “flat” and the use of temperature to infer composition may be ineffective.