Page 93 - Distillation theory

P1: JPJ/FFX P2: FCH/FFX QC: VINOD/IYP T1: FCH
0521820928c03 CB644-Petlyuk-v1 June 11, 2004 20:12

3.5 Feasible Splits at R =∞ and N =∞ 67

123 123
x D ≡ N + N −
a) D B b)
12
12

1 1 +
N
D
134
134
13 13 x ≡ N −
B B

123 123
+
+
c) N D d) N ≡ N −
12 D B
12

1 1

134 134
−
N B
13 13
123

12

1

134

+
13 N D ≡ N B −
Figure 3.19. Example of determination whether the feed point (Fig. 3.14a)
∞
belongs to the product simplex Reg simp (only the distillation region Reg ≡
12 ⇒ 13 is shown). Material balance lines and distillation trajectories at R =
∞, N =∞ (shown schematically on linear boundary elements of the dis-
simp
tillation region Reg , not on curvilinear ones of the distillation region
bound
Reg ∞ ). The visible faces of the simplex are shaded (one darker, one
bound
lighter).

1. 1 : 234,23,38,568,58,78,89,8
2. 1,234 : 23,38,568,58,78,89,8
3. 1,234,23 : 38,568,58,78,89,8
4. 1,234,23,38 : 568,58,78,89,8
5. 1,234,23,38,568 : 58,78,89,8
6. 1,234,23,38,568,58 : 78,89,8
7. 1,234,23,38,568,58,78 : 89,8
8. 1,234,23,38,568,58,78,89 : 8