Conversion of Ethylbenzene to Styrene in the Presence of Steam

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram CDF Player or other Wolfram Language products.

Requires a Wolfram Notebook System

Edit on desktop, mobile and cloud with any Wolfram Language product.

Styrene is a monomer used in the production of many plastics. Its rate of industrial production is the fourth highest after monomers such as vinyl chloride.

[more]

Consider the endothermic dehydrogenation of ethylbenzene (EB) to produce styrene (S) and hydrogen: . The temperature-dependent equilibrium constant is given by . This Demonstration plots the conversion versus temperature curve in red for user-set values of the steam flow rate and total pressure. In this case, steam acts as an inert component in the reacting mixture and increasing its flow rate leads to higher values of the conversion. Indeed, the green curve, which corresponds to the case where no steam is added, is always below the red curve. On the other hand, conversion decreases if total pressure (expressed in atm) is increased. In agreement with LeChatelier's rule, conversion approaches unity for very high temperatures because the reaction is endothermic.

[less]

Contributed by: Housam Binous and Ahmed Bellagi (March 2011)
Open content licensed under CC BY-NC-SA


Snapshots


Details

detailSectionParagraph


Feedback (field required)
Email (field required) Name
Occupation Organization
Note: Your message & contact information may be shared with the author of any specific Demonstration for which you give feedback.
Send