A model that takes into consideration radial and axial changes in velocity in a tubular reactor for the thermal polymerization of styrene is used to simulate the effect of changes in inlet tube wall temperature and tube radius. The reactor performance is sensitive to the changes of these parameters. The method of orthogonal collocation is used to discretize the modeling equation in the radial direction and Gear method to solve the resulting stiff differential equations in the axial direction. It is found that reducing the wall temperature and the tube radius along the direction of the flow of the monomer reduces the variation in conversion between the tube center and tube wall and thus are advantageous.
[1]
J. Wallis,et al.
Continuous production of polystyrene in a tubular reactor: Part I
,
1975
.
[2]
Albert Renken,et al.
Motionless mixers for the design of multitubular polymerization reactors
,
1984
.
[3]
Clement Kleinstreuer,et al.
Analysis of styrene polymerization in a continuous flow tubular reactor
,
1986
.
[4]
E. B. Nauman,et al.
Verification of a complex, variable viscosity model for a tubular polymerization reactor
,
1989
.
[5]
J. S. Vrentas,et al.
Radial transport in tubular polymerization reactors
,
1986
.