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- W2307239512 abstract "Alternative processes for synthesizing fuel-grade oxygenates are centered on conversion of synthesis gas into C{sub 1}-C{sub 8} alcohols and ethers. Over Cs/Cu/ZnO-based catalysts, mixtures of methanol/isobutanol are predominantly formed. It has been found that these alcohols can be directly coupled over certain strong acid organic-based catalysts to form unsymmetric C{sub 5} ethers, mainly the kinetically favored methyl isobutyl ether (MIBE) with some of the thermodynamically favored methyl tertiarybutyl ether (MTBE), the symmetric ethers of dimethylether (DME) and diisobutylether (DIBE), or selectively dehydrated to form isobutene over sulfated zirconia. Based on these reactions, a 2-stage, dual catalyst configuration can be utilized to give MTBE as the dominant ether product. The octane numbers and cetane ratings of the oxygenates have been determined and are compared, e.g. adding 10 vol% MIBE and MTBE to 82.3 MON gasoline altered the MON of the gasoline by -1.5 and +1.4 units, respectively, and MIBE has a high cetane number of 53, compared to 42 for typical U.S. diesel fuel." @default.
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- W2307239512 date "1994-12-31" @default.
- W2307239512 modified "2023-09-24" @default.
- W2307239512 title "Synthesis of oxygenates from H{sub 2}/CO synthesis gas and use as fuel additives" @default.
- W2307239512 hasPublicationYear "1994" @default.
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