Vapor Liquid Equilibrium Data in Tert-Amyl Methyl Ether (TAME) Production

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TAME (tert-amyl methyl ether) is used as a high-octane gasoline blending component.


Producing TAME involves the following three simultaneous reactions:

2M1B+MeOH ⇄ TAME (etherification)

2M2B+MeOH ⇄ TAME (etherification)

2M1B ⇄ 2M2B (isomerisation)

where MeOH is methanol while 2M1B and 2M2B (unsaturated C5 isoamylenes) are 2-methyl-1-butene and 2-methyl-2-butene, respectively.

In the system considered here, -pentane is an inert present in the reacting quinternary mixture.

This Demonstration uses the UNIQUAC (UNIversal QUAsi-Chemical) activity coefficient prediction model in order to compute vapor-liquid isobaric diagrams at 1 atm for the 10 possible binary combinations. Such results are preliminary calculations useful in order to perform steady-state and dynamic simulations of reactive distillation columns used for the production of TAME.


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




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