Title: Selective synthesis of 2-ethoxy alkanes through ethoxylation of 1-alkenes with bioethanol over zeolite beta catalyst in a liquid phase continuous process
Authors: Radhakrishnan, Sambhu ×
Franken, Joris
Martens, Johan #
Issue Date: 2012
Publisher: Royal Society of Chemistry
Series Title: Green Chemistry vol:14 issue:5 pages:1475-1479
Abstract: 1-Hexene was ethoxylated with ethanol and ethanol-water mixtures mimicking bioethanol in a liquid phase, continuous flow process over a fixed bed of zeolite beta catalyst at a reaction temperature of 423 K and a pressure of 6 MPa. The selectivity for ethoxy alkanes on a hexene basis exceeded 90%. GC-MS, H-1 & C-13-NMR and C-13 DEPT NMR confirmed the main reaction products to be 2-ethoxy hexane and 3-ethoxy hexane in molar ratio 20 : 1. Side products were diethyl ether from ethanol and dodecenes and hexanol from 1-hexene. Under optimized reaction conditions, the catalyst was stable for at least 14 hours on-stream. The 2-ethoxylation activity of 1-alkenes by zeolite beta was confirmed in reactions with 1-octene and 1-decene. 1-Alkenes can be synthesized out of biomass via conversion into synthesis gas and the Fischer-Tropsch process. The here presented ethoxylation process could contribute green chemicals to the diesel pool and presents a pathway for synthesis of high boiling solvents.
ISSN: 1463-9262
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

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