Abstract
Diethyl ether is one of alternative fuel that could be used as a significant component of a blend or as a complete replacement for transportation fuel. The aim of this research is to produce diethyl ether through dehydration reaction of ethanol with fixed bed reactor using nanocrystalline γ-Al2O3 catalyst. Nanocrystalline γ-Al2O3 catalyst was synthesized by precipitation method using Al(NO3)3.9H2O as precursors and NH4OH as the precipitating agent. Dehydration reaction was performed at temperature range of 125 to 225°C. The result shows that synthesized γ-Al2O3 catalyst gave higher ethanol conversion and diethyl ether yield than that of commercial Al2O3 catalyst. The use of synthesized γ-Al2O3 catalyst could reach ethanol conversion as high as 94.71% and diethyl ether yield as high as 11,29%.
Highlights
Diethyl ether (DEE) is an important chemical for the laboratory and industry uses
Ethanol with an octane number of 113 and low Reid vapor pressure is considered as an excellent alternative to gasoline but it causes some problems in cold-start of the engine
It may be concluded that: γAl2O3 nanocrystallite can be produced by using precipitation method with Al(NO3)3.9H2O as an aluminum precursor, NH4OH as precipitating agent and 0.5 M hydrochloric acid (HCl) and distilled water as solvent
Summary
Diethyl ether (DEE) is an important chemical for the laboratory and industry uses. It has been widely used as a solvent or extractant, reaction medium, fragrance, explosive materials, pharmaceutical chemical processes, fuels and fuel additives [1]–[6]. The volumetric heating value and octane number are very important parameters for an alternative fuel of gasoline. A decrease in engine temperature causes a formation of less amount of NOx. Ethanol with an octane number of 113 and low Reid vapor pressure is considered as an excellent alternative to gasoline but it causes some problems in cold-start of the engine. Ethanol-DEE mixtures are considered as excellent gasoline alternatives which diethyl ether can be produced by dehydration of ethanol over acidic catalysts
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