Berechnung der Austauschlinien für die Rektifikation binärer Gemische

Abstract

Fußend auf der Theorie von Kirschbaum werden Gleichungen zur Berechnung der Austauschlinien für Zweistoffgemische mit verschiedenen molaren Verdampfungswärmen der Einzelstoffe abgeleitet.

Correspondence - Letter to the Editor

“…In my letter, I used the above-mentioned special case of my equations for curved operating lines to remind the readers of this fact. Therefore, I did not see any reason for citing Billet (1958) (not to mention Fisher (1963)) again, as I already did in 1968.…”

“…Besides this, much earlier publications tried to solve, or even solved, the problem Fisher dealt with, among them the works of Hausen (1942), Thum (1957), and Billet (1958), the latter cited, e.g., also by Kirschbaum (1960). I myself realized this in 1967 after having prepared a set of equations for the operating lines of systems with straight but not parallel phase lines, accounting for heat losses and pressure drop.…”

“…I myself realized this in 1967 after having prepared a set of equations for the operating lines of systems with straight but not parallel phase lines, accounting for heat losses and pressure drop. After setting the respective terms to zero and performing some tedious transformations, I could show that the equations of Billet (1958) and Fisher (1963) are identical (a special case of my equations (Bitter, 1968)) and may be written in a far simpler form. Up to that time, it had not been recognized that Billet (1958) implicitly used straight phase lines in his model, as Fisher (1963) did explicitly.…”