In the current In the current process, styrene is produced by the dehydrogenation of ethylbenzene. This article deals with the simulation and optimization of a styrene plant. Styrene is produced by the reaction ethylbenze ne styrene C 6 H 5 CH 2 CH 3 →C 6 H 5 CHCH 2 + H 2 ← The reaction is reversible and is limited by equilibrium. When ethylbenzene is dehydrogenated with CO2 to produce styrene, the process is more ecological and economical than when water is used[1].

The overall reaction is an endothermic reaction in which the total conversion is 0.76 and styrene is obtained with 99.7% purity as designated by ASTM.
Recent updates of energy balance calculations have verified

Eng. ETHYLBENZENE DEHYDROGENATION INTO STYRENE: KINETIC MODELING AND REACTOR SIMULATION A Dissertation by WON JAE LEE Submitted to the Office of Graduate Studies of If, as we have the entire time, we assume that the system is at steady state, we obtain the energy balance equation: = This is the starting point for all of the energy balances below. 2.2 Catalytic Dehydrogenation of Ethylbenzene 2.2.1 Main Reactions Direct dehydrogenation of ethylbenzene to styrene accounts for 85 % of commercial production. 2009, 48, 10941−10961) presented a flowsheet of the styrene process, which has several interesting design and control features. The popularity of the PO/SM route with PO producers, compared to the conventional chlorohydrin process, has been put down to better process economics and environmental perspectives. An example of energy balance would be the scenario cited at the start of this chapter: in the course of a year the average adult consumes and expends one million calories, … Accumulation of anything is 0 at steady state, and energy is no exception. Stream 22: styrene crude product of at least 99.0 wt% purity, 100,000 metric tons/yr, with small amounts of ethylbenzene.
The Production Styrene By Catalytic Dehydrogenation Of Ethylbenzene Pl - posted in Student: Hi guys, please help with the plant design project for the adiabatic dehydrogenation of Ethylbenzen, the mass balance especially Energy balance occurs when the energy content of food is matched by the total amount of energy that is expended by the body.

Styrene production and the manufacture of products derived from styrene represent an economically important part of the U.S. economy and these products enhance quality of life by providing improved energy efficiency, performance, and cost efficiencies. byproduct, but it should not exceed 2% of styrene production. 3.6.2 Negative and positive energy balance. In this research, a pseudo steady state model is developed based on the mass and energy balance equations to simulate conversion section of a styrene monomer production plant.

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