A packed bed reactor is used to produce styrene by the vapor phase catalytic dehydrogenation of ethylbenzene. Steam is used to prolong life of the catalyst...
The following reactions may be significant:
C6H5C2H5. <———kst———>C6H5CH=CH2 +H2
EB<———kst——>ST+H₂
Log10(kst)=(-11370 /4.575T )+0.883
Dlta H =53600 BTU/bmol
where T is in degrees Kelvin; kst = lbmol styrene/ (h-atm-lb catalyst.
The overall equilibrium constant
T, (°C). 400 500. 600. 700
Kp 1.7 x 10^-3 2.5 x 10^-2 2.3 x 10^-1 1.4
Additional data
Vapor phase reaction
Feed temperature = 1124 F
Feed pressure = 20 psia
Feed molar flow rate = 1206 lbmole/h
1- From any available source, find the rate of reaction as a function of (mole fraction, concentration or partial pressure
2- Find the activation energy of the reaction
3- Design a reactor that can handle this reaction according to the given data
4- Mention the design constraints and assumptions
5- Verify the design using HYSYS and Polymath software
6- Mention the utility requirement if possible
- 7- Mention any environmental health and safety impact of this process 8- Mention any economic, social, and cultural issues