Design of Batch Distillation Columns Using Short-Cut Method at Constant Reflux

Table 6

Two components separation: ethyl benzene (iii) and xylene (iv) at constant reflux.

Case	𝑅=𝐿/𝐷	Feed = 𝑊0 (kmol)	𝑡 harvest; (h)	𝑡 total; (h)	𝑊𝑡 (kmol)	𝑃iii Harvested ethyl benzene; (kmol)	P2-CAP; kg/h	CTA; USD	𝑡 final Xylene; (h)	𝑃iv Harvested; Xylene; (kmol)
𝑁=20
A	2	X	X	X	X	X	X	X	X	X
B	5	X	X	X	X	X	X	X	X	X
C	10	200	.5	11	100	4.54	38	1,947,574	14	72
D	15	200	7.5	10	100	46.87	389	1,427,695	16.4	80.3
E	20	200	14.2	15.5	100	67.61	401	2,274,166	20.1	88
𝑁=30
A	2	X	X	X	X	X	X	X	X	X
B	5	X	X	X	X	X	X	X	X	X
C	10	200	6.4	11	100	58	485	1,824,041	13	81
D	15	200	10.4	13.5	100	65	443	2,175,215	14	84
E	20	200	15.8	15.6	100	75.23	444	1,500,652	20.7	91
𝑁=40
A	2	X	X	X	X	X	X	X	X	X
B	5	X	X	X	X	X	X	X	X	X
C	10	200	6.4	11	100	55	460	1,769,314	12.5	87
D	15	200	10.8	14	100	67.5	444	1,553,410	15.8	91
E	20	200	16.2	16.7	100	77.14	425	2,265,951	20.8	98
𝑁=50
A	2	X	X	X	X	X	X	X	X	X
B	5	X	X	X	X	X	X	X	X	X
C	10	200	5.8	11	100	53	443	1,674,550	11.7	91
D	15	200	11.1	14	100	69.37	456	2,301,839	17	93.7
E	20	200	16.4	16.7	100	78.09	430	1,602,688	21	100