By Alfons Vogelpohl
Distillation in keeping with Mass move strategies, ranging from the fundamental equation of ternary distillation released by means of Hausen in 1932 and exploiting the homes of this equation protecting all modes of distillation. the cloth is meant as a graduate textbook for a complicated path on distillation yet also will support the working towards engineer to higher comprehend the complicated inter-relationships of multi-component distillation.
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15. 14) are zero at the intersections of the straight lines, the differential equation is not defined at these points Fig. 14. Approximation of the power e vs. 25)). and such points are called nodes. Since the feasible concentration profiles or distillation lines are limited to the triangle defined by the straight lines the triangle is named a distillation space and the straight lines are called separation lines. At total reflux the separation lines coincide with the sides of the Gibbs triangle and the distillation space becomes identical with the Gibbs triangle.
By the following specifications – the complete definition of the feed c + 2 – the operating pressure of the column 1 – the mole fraction of one component in the distillate 1 – the mole fraction of one component in the bottom product 1 – the feed location 1 Based on these specifications, the required height or the number of theoretical stages of the mass transfer sections can be calculated. e. g. by the flow rate of the distillate. 1 McCabe–Thiele-diagram The McCabe–Thiele-diagram as shown in Fig.
This is achieved by introducing a linear transformation of the coordinates x, y resulting in a new coordinate system ξ , η as discussed in Chapter 3 and shown in Fig. 19. Fig. 17. Vector field of the liquid distillation lines of a stripping section at partial reflux (- - - separation lines). Fig. 18. Vector field of the vapour distillation lines of Fig. 17 (- - - separation lines). Fig. 19. Transformed distillation spaces (· · · Gibbs triangle, — distillation space of the liquid, - - - distillation space of the vapour).
Distillation by Alfons Vogelpohl