Reflux-recycle-reactor for high yield and selectivity in TAME and TAEE production

Date

2005-02-01

Author

Boz, N
Doğu, Timur

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The batch reflux-recycle-reactor (RRR) proposed here was shown to give high product yields and selectivities in the production of tert-ethers. Because the vapor pressures of product ethers are lower than those of the reactants, vapor-phase reactor inlet stream is always rich in reactants in this batch RRR. A first-order reversible reaction rate model was shown to give good prediction of experimental results. The apparent activation energy of the rate constant was evaluated as 24.8 kJ mol(-1). This low value of activation energy for vapor-phase synthesis of tert-amyl methyl ether (TAME) was concluded to be primarily attributed to the significance of transport resistances in the macropores of Amberlyst-15 and also through the thin liquid film covering catalyst particles. In the case of TAME production fractional conversion values reaching 0.91 were obtained at 82degreesC with almost 100% selectivity. Comparison of the results obtained for TAME and tert-amyl ethyl ether (TAEE) synthesis showed that reactivity of methanol was much higher than that of ethanol in the etherification reaction of isoamylene, over Amberlyst-15. (C) 2005 American Institute of Chemical Engineers.

Subject Keywords

Biotechnology, Environmental Engineering, General Chemical Engineering

URI

https://hdl.handle.net/11511/62657

Journal

AICHE JOURNAL

DOI

https://doi.org/10.1002/aic.10320

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

N. Boz and T. Doğu, “Reflux-recycle-reactor for high yield and selectivity in TAME and TAEE production,” AICHE JOURNAL, pp. 631–640, 2005, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/62657.