Influence of Internal Energy Saving on Selection of Optimum Scheme of Heating for Mixture Separation in Fractionating Column

Formulas for calculating internal energy saving in a fractionating column without preheating and with heating to boiling point of the initial mixture are given. Formulas are derived for calculating internal energy saving in various schemes of heating of the initial mixture by vapor stream in the rectifying section of the column. The optimum scheme of process implementation is proposed taking account of analysis of internal energy saving.