| 摘要 |
1. An engine gasoline with bioethanol, characterised by the motor octane number of at least 84 and the research octane number of at least 94, contains ethanol, 0.03-0.15g Pb/dm3 and known improving additives. Characterized in that it contains: 3.5-10 percent of alcohols with one hydroxyl group, which includes 3.5-5.5 percent of ethanol obtained from fermentation, 40-90 percent of unleaded petrol and/or base petrol and/or ethyl petrols with the motor octane number of at least 80 and the dry point of up to 215 degrees C, containing at least 7 percent of the fraction distilled above the temperature of 180 degrees C, where the concentration of olefin hydrocarbons is of at least 12 percent, while the concentration of aromatic hydrocarbons is of at least 60 percent; 0-25 percent of cracked petrol and/or unleaded petrol and/or base petrol and/or ethyl petrol with the motor octane number of at least 78 and the dry point of up to 215 degrees C, containing not more than 6 percent of the fractions distilled above the temperature of 180 degrees C; 4-28 percent of low-octane fractions of paraffin-naphthene character, obtained from primary and/or secondary processes, containing at least 4 percent - with respect to the entire gasoline - of the fraction of hydrocarbons distilled within the temperature range of 150 degrees -245 degrees C; 0-10 percent of fractions of paraffin character, obtained from secondary processing, with the motor octane number of at least 80, such as alylate and/or isomerizate; 0-10 percent of components obtained from secondary processing, containing mainly aromatic hydrocarbons, such as reformation product of high-intensity process and/or a fraction which contains mainly toluene and/or xylenes; 0-5 percent of ethers with 5 or 6 atoms of carbon in a molecule.
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