Page 26 - Distillation theory

P1: FCH/FFX P2: FCH/FFX QC: FCH/FFX T1: FCH
CB644-FM CB644-Petlyuk-v1 June 15, 2004 4:28

xxiv Nomenclature

w working region, working trajectory
1,2,3 . . . component 1,2,3 . . . ; section 1,2,3 . . . ; feed 1,2; variant 1,2,3; column
1,2,3 . . . respectively

Nomenclature to Figures
A endpoint of tear-off segment of distillation
trajectories
A 1 , A 2 , A 3 . . . vertexes of possible product composition regions
Az azeotropes
boxed digits component order regions
C-1, C-2 . . . columns
dash-dotted line line of material balance
dashes tray compositions on composition profiles
dotted line trajectory of reversible distillation
dotty line separatrix
double segment possible composition of overhead product or
trajectory tear-off segment of top section
thick black segment possible composition of bottom product or
trajectory tear-off segment of bottom section
gray segment tear-off segment of extractive distillation
trajectories
F + E composition point of feed and entrainer mixture
composition point of initial feed
F 0
F 1 + F 2 composition point of mixture of feeds F 1 and F 2
H height of column
HD heave diesel oil
HN heave naphta
LD light diesel fuel
LN light naphta
little black or white circle stable or unstable node of concentration simplex
respectively
little cross circle saddle of concentration simplex
little cross square bottom composition point
little square overhead composition point
little triangle feed composition point
short segment with arrow tie-line liquid–vapor
st steam
thick line trajectory of distillation
thin line equivolatility line
(1), (2) . . . column (1) or (2) respectively
(1), (2) . . . split (1) or (2) respectively
α 12 , α 13 . . . equivolatility line of components 1 and 2, 1 and
3 . . . respectively