10.490
ICE Module I - Batch Process Development
Fall 2006
Memo 7
DIVERSIFIED CHEMICAL PRODUCTS
Research and Product Development Division
Blacksburg VA
TO:
FROM:
DATE:
SUBJECT:
U. R. Engineer
Phil D. Chemist
2006 Sep 22
Physical Property Data for Lucretex Components
This memo provides physical property data for all the components in the case-study. Table 1
contains pure-component property values.
Models for Temperature-Dependent Pure-Component Properties (see Table 2)
Ideal Gas Heat Capacity (J kmol-1 K-1):
C p,ig = A1 + A 2 T + A 3T 2 + A 4T 5 + A 5T 4 + A 6T 5
= A 9 + A10T A11
A 7 ≤ T ≤ A8
T < A7
Extended-Range Antoine Equation for Vapor Pressure (N m-2):
ln Ps = B1 +
B2
+ B4T + B5 ln T + B6T B7
T + B3
B8 ≤ T ≤ B9
Binary Wilson Model for Activity Coefficients (see Table 3)
The liquid interactions between components i and j are represented by the Wilson liquid
solution model in the following form:
n
ln γ i = 1 − Bi − ∑ e
a ji +
j =1
b ji
T
− Bj
xj
⎡ n aij + bij ⎤
Bi = ln ⎢ ∑ e T x j ⎥
⎢⎣ j=1
⎥⎦
where γi denotes the activity coefficient of component i, aij and bij represent binary interaction
parameters between component pairs (i, j), and T denotes the temperature (in kelvins) of the
system. All available binary interaction parameters are shown in Table 3.
revised 2006 Aug 24
1