Vapour-liquid equilibria in the ethane - propane - n-butane system at high pressures

Fluid Phase Equilibria, 12 (1983) 307-309 Elsevier Science Publishers B.V., Amsterdam

VAPOUR-LIQUID SYSTEM

AT

VLADIMiR

of

Academy

of

(Received

A

May

ethane

9,

of

-

auxiliary ried

by

The

were

in

data

Lhota'k

and

y

for

tively,

-

and

with

6

in

of new

-

n-BUTANE

final

form

critical

material

to

Wichterle

the

on

of

data

previous and

the

12,

1983)

mixed

equilibrium These

(1981)

data

May

region

vapour-liquid system.

binary

Czechoslovak

(Czechoslovakia)

n-butane

equipment, i,n the

two

isothermal

systems data

on

represent

an

measurements

Bera'nek

systems

liquid

and

subscripts

critical 4.8714

E half

region MPa,

Table

vapour and

procedure, cited

P

of

the

and

ethane

car-

Wichterle

- n-butane

of

pure

ethane

and

ethane

temperature

and

for

pressure,

fractions),

propane, poines

(critical

des-

32.30,

stands

(mole

were

measurements

31.47, P

experimental

materials

The

.

at

1 where

composition for

and

papers

conditions

presented:in

Approximately

pressure

PROPANE

n-butane.

under are

-

Fundamentals, Prague

accepted

with

propane

-

02

investigation

detail

made

the

the

1983;

experimental

cribed

ETHANE

WICHTERLE

165

here

dealing

propane

THE

Process

experimental

out

(1981)

IVAN

Sciences,

supplemented

the

and

and

Chemical

project

IN

in The Netherlands

PRESSURES

LHOTAK

Institute

is

EQUILIBRIA HIGH

307 - Printed

were data

33.35'C; x

respec-

respectively. measured for

near

ethane:

32.18'C).

REFERENCES Lhota'k, V. and Wichterle, I., 1981. Vapour-liquid equilibria in the ethane - n-butane system at high pressures. Fluid Phase Equilibria, 6: 229 - 235. Bera'nek, P. and Wichterle, I., 1981. Vapour-liquid equilibria in the propane - n-butane system at high pressures. Fluid Phase Equilibria, 6: 279 - 282.

0378-3812/83/$03.00

8 1983 Elsevier Science Publishers B.V.

TABLE

1

Vapour-liquid

equilibria

in

the

t = 33.35

Oc

ethane

- propane

- n-butane

system

0.0008 0.0006 0.1370 0.3449 0.5382 0.7788 0.9385 0.9637 0.9719 0.9821 0.9867 0.9857 0.9890 0.9907

0.3863 0.5348 0.4652 0.3698 0.2671 0.1310 0.0412 0.0250 0.0197 0.0131 0.0068 0.0107 0.0084 0.0046

0.0071 0.0028 0.3948 0.6469 0.7881 0.8918 0.9620 0.9755 0.9805 0.9861 0.9892 0.9886 0.9907 0.9916 t = 32.30

0.0015 0.0005 0.1406 0.1677 0.1458 0.3431 0.5506 0.7795 0.9417 0.9639 0.9713 0.9818 0.9859 0.9870 0.9868 0.9853 0.9878 0.9903 0.9909 0.9948 0.9902 0.9916

0.4826 0.5342 0.4652 0.4008 0.4223 0.3702 0.2620 0.1378 0.0396

0.0252 0.0202 0.0133 0.0027 0.0067 0.0065 0.0110 0.0093 0.0017 0.0072 O.OOlT 0.0050 0.0043

0.0073 0.0027 0.3982 0.4692 0.4648 0.6592 0.7892 0.8942 0.9665 0.9777 0.9814 0.9871 II .0.9920 0.9903 0.99io

0.9896 0.9914 0.9937 0.9933 0.9962

0.9930 0.9937

0.7175 0.7716 0.4609 0.2717 0.1643 0.0803 0.0285 0.0184 0.0148 0.0107 0.0059 0.0090 0.0074 0.0044

0.6862 0.7715 1.1574 1.8664 2.6207 3.5376 4.5376 4.7111 4.7637 4.8442 4.8498 4.8731 4.8958 4.9246

0.7284 0.7753 0.4594 0.3857 0.3854 0.2630 0.1630 0.0817 0.0263 0.0168 o:oi41 0.0101 0.0018 0.0054 0.0050 0.0083 0.0070 0.0012 0.0055 0.0009 0.0040 0.0035

0.6697 0.7142 1.1340 1.1692 1.1706 1.8255 2.5749 3.4740 4.4520 4.6153 4.6660 4.7440 4.7503 4.7540 4.7707 4.7715 4.7929 4.7955 4.8133 4.8266 4.8278 4.8569

'C

continue

..'

309

TABLE

1

(continued)

YE

xP t 0.0015 0.0005 0.0020 0.1436 0.1664 0.1474 0.3430 0.5447 0.7812 0.9415 0.9628 0.9707 0.9816 0.9880

0.9866 0.9862 0.9859 0.9885

0.9905 0.9914 0.9942 0.9902 0.9914

0.4837 0.5348 0.5454 0.4528 0.4546 0.4381 0.3677 0.2642 0.1341 0.0397 0.0261 0.0207 0.0134 0.0025 0.0070 0.0105 0.0068 0.0089 0.0017 0.0069 0.0012 0.0051 0.0044

=

31.47 0.0070 0.0029 0.0122 0.4045 0.4750 0.4782 0.6531 0.7939 0.8978

0.9673

0.9782 0.9829 0.9880 0.9926 0.9912 0.9905 0.9916 0.9914 0.9942 0.9932 0.9960 0.9932 0.9941

YP

P,MPa

Oc 0.7247 0.7636 0.7580 0.4521 0.3825 0.3815 0.2813 0.1620 0.0799 0.0257 0.0173 0.0140 0.0096 0.0019 0.0051 0.0077 0.0047 0.0069 0.0014 0.0057 0.0010 0.0039 0.0034

0.6567 0.6996 0.7033 1 .1189 1.1556 1.1611 1.7784 2.5412 3.4244 4.4018 4.5401 4.5903 4.6647 4.6754 4.6764 4.6913 4.6931 4.7101 4.7157 4.7321 4.7455 4.7488 4.7771