The distillation curve of gasolines is affected when mixed with alcohols like bioethanol and biobutanol. The beginning of the distillation curve and temperature T50 are most influenced by bioethanol. Gasoline mixtures with up to 20% of bioethanol, n-butanol, or isobutanol should not significantly impact engine combustion, though the selection of gasoline, ETBE, and MTBE cosolvents is important. The distillation curve shape of gasoline mixed with n-butanol or isobutanol and the ethers MTBE and ETBE follows the boiling points of these components.
The distillation curve of gasolines is affected when mixed with alcohols like bioethanol and biobutanol. The beginning of the distillation curve and temperature T50 are most influenced by bioethanol. Gasoline mixtures with up to 20% of bioethanol, n-butanol, or isobutanol should not significantly impact engine combustion, though the selection of gasoline, ETBE, and MTBE cosolvents is important. The distillation curve shape of gasoline mixed with n-butanol or isobutanol and the ethers MTBE and ETBE follows the boiling points of these components.
The distillation curve of gasolines is affected when mixed with alcohols like bioethanol and biobutanol. The beginning of the distillation curve and temperature T50 are most influenced by bioethanol. Gasoline mixtures with up to 20% of bioethanol, n-butanol, or isobutanol should not significantly impact engine combustion, though the selection of gasoline, ETBE, and MTBE cosolvents is important. The distillation curve shape of gasoline mixed with n-butanol or isobutanol and the ethers MTBE and ETBE follows the boiling points of these components.
The distillation curve of gasolines is affected when mixed with alcohols like bioethanol and biobutanol. The beginning of the distillation curve and temperature T50 are most influenced by bioethanol. Gasoline mixtures with up to 20% of bioethanol, n-butanol, or isobutanol should not significantly impact engine combustion, though the selection of gasoline, ETBE, and MTBE cosolvents is important. The distillation curve shape of gasoline mixed with n-butanol or isobutanol and the ethers MTBE and ETBE follows the boiling points of these components.
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Conclusion
Changes of distillation curve of gasolines with alcohols are associated with
changes of other parameters. The first part of distillation curve and temperature T50 is influenced by bioethanol if mixed with gasoline. The rest of this distillation curve follows shape of pure gasoline. Biobutanol may alternate bioethanol mixtures with gasoline but, parameters differ again. Gasoline mixtures with biobutanol either in form of n-butanol or in form of isobutanol affect only second part of distillation curve with values of E100 and E150 according to EN 228. Shape of distillation affects also performance of engine. Up to 20% of alcohols (bioethanol, n-butanol or isobutanol) in gasoline mixture shouldn't have any significant impact on combustion. But selection of gasoline, ETBE and MTBE cosolvents matters. Combination of gasoline with ETBE and ethanol summarizes its impacts on distillation curve of gasoline. Shape of distillation curve of gasoline with n-butanol or isobutanol and ethers MTBE and ETBE is according to boiling points of these components