Page 358 - Distillation theory

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CB644-IND CB644-Petlyuk-v1 March 16, 2004 17:0

332 Index

four-component (cont.) methanol-isopropyl-acetate-water mixture,
product simplex method applied to, 65–66 210–211
regions of order of components, 12 method of product simplex, 59–60
residue curve bundles of, 8–10 methyl-ethyl-ketone-benzene-chloroform
reversible distillation mixture, 56–57
extractive, intermediate section trajectories, minimum reflux mode
103 calculation of
trajectory bundles, 93–97 at tangential pinch points, 156–157
structures of, 10 for complexes with side flow withdrawals,
types of saddle points of, 9 202
fractionation for complexes with side strippings, 202–204
first class, 29–30 for direct splits, 152–154
second class, 30, 31–32 for extractive columns with two-feeds,
third class, 29, 30 192–193
zones of constant concentration per type, 31 for intermediate splits, 154–158
for multi-feed columns for non-ideal
heat pumps, 279–281 zeotropic/azeotropic mixtures,
heavy key component, 47 179–181
heteroazeotropes for Petlyuk columns, 204–206
defined, 3 for splits with distributed component,
distillation of, 206–210 158–161
phase equilibrium of, 4 overview, 152
presynthesis for, 319 thermal balance equations in, 161–162
heteroazeotropic column, 35 importance of, 29
hexane-methanol-methylacetate mixture, number of stages and, 24
140 regularities of, 111–112
hydrocarbon gases separation flowsheet, mixtures
273 ideal
calculation at minimum reflux for, 111–120
impurity components concentration space of, 7
with intermediate splits, 228–229 feasible splits for, 46, 47–48
non-key joining of section trajectories under
in splits with distributed component, minimum reflux
239–241 for 1,2:2,3,4 split, 158–161
product concentration of, 235 for direct split, 154
with intermediate splits, 230–232 for intermediate split, 156
number of trays and, 242 McCabe-Thiele diagram for, 23
top versus bottom product, 220–221 quasisharp separation of, trajectories of
infinite reflux mode, 10, 24, 40–41 rectifying section for, 138
intermediate sections section trajectories of preferred split at
control feed at minimum reflux mode, 178–179 minimum reflux, 120–121
material balance equation, 170–171 limited separability, 37
pseudoproduct composition equation, 171 McCabe-Thiele diagram for, 23
pseudoproduct flow rate equation, 171 non-ideal, joining of section trajectories under
reversible distillation trajectories location, minimum reflux for direct split, 154
175–176 separability
trajectory bundles structure, 177–178 adiabatic columns, 162–163
two-feed columns with non-sharp separation necessary and sufficient conditions for
in, 174–181 adiabatic columns, 162–163
isopropanol-water-benzene mixture, 207–210 non-adiabatic columns, 163–164
necessary condition for, 124–126
‘lever rule,’ 3 thermolabile, 37–38
light key component, 47 two-liquid-phase, 206–207
lines of stationarity, 34, 77–78 unlimited separability, 37
liquid-vapour tie-lines, 5, 41–42, 50 see also binary mixtures, three-component
mixtures, four-component mixtures,
material balance equation, 24 n-component mixtures
McCabe-Thiele diagrams, 23–25, 108–109 mode of minimum reflux, 151, 152