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Styrene ( C 8 H 8 ) is produced from dehydrogenation reaction of ethylbenzene ( C 8 H 1 0 ) with the present of
Styrene CH is produced from dehydrogenation reaction of ethylbenzene CH with the present of catalyst. A general procedure of producing it is as follows:
A fresh feed stream consists of CH and steam HO at a mole ratio of : is mixed with a recycle stream and enters a reactor R The steam acts as an inert and cleaning compound for the catalyst surface. The production process is designed for overall conversion and singlepass conversion of The reactor outlet stream enters a first separator S which produces streams. The first stream consists of H and HO is discarded for further process, while the second stream consists of CH and CH enters a second separator S The S produces streams, the first stream consists of CH and CH is collected as product while the second stream consists of mol CH and the balance CH is recycled and mixed with the fresh feed stream in a mixer M
write a material balance proposal for the plant. The material balance proposal should consider the following steps:
a A process flow diagram of the process and the chemical reaction involved.
b Evaluate material balance of the whole process by stating your own basis of calculation. This include calculating all molar flow rates of the stream and compositions for each stream Validate all answer.
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