Reactive distillation for synthesizing ethyl tert-butyl ether from low-grade alcohol catalyzed by potassium hydrogen sulfate
Journal Article
·
· Industrial and Engineering Chemistry Research
- Nagoya Univ. (Japan). Dept. of Chemical Engineering
Synthesis of ethyl tert-butyl ether (ETBE) from the reaction between ethanol (EtOH) and tert-butyl alcohol (TBA) in the presence of different acid catalysts (KHSO{sub 4}, NaHSO{sub 4}, H{sub 2}SO{sub 4}, and Amberlyst 15) was investigated at low alcohol grade (mixture of 80 mol % water). Potassium hydrogen sulfate (KHSO{sub 4}) showed the highest selectivity among the tested catalysts. Other catalysts caused the dehydration of TBA into water (H{sub 2}O) and isobutene (IB). In the top of the reactive distillation column with total reflux, the condensate was split into two layers. The upper layer contained ETBE with a more than 60 mole fraction.
- OSTI ID:
- 225476
- Journal Information:
- Industrial and Engineering Chemistry Research, Vol. 35, Issue 3; Other Information: PBD: Mar 1996
- Country of Publication:
- United States
- Language:
- English
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