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E20 contains 20% ethanol and 80% gasoline, while E25 contains 25% ethanol. These blends have been widely used in Brazil since the late 1970s. [96] As a response to the 1973 oil crisis, the Brazilian government made mandatory the blend of ethanol fuel with gasoline, fluctuating between 10% and 22% from 1976 until 1992. [96]
The fraction of water that an ethanol-gasoline fuel can contain without phase separation increases with the percentage of ethanol. [29] For example, E30 can have up to about 2% water. If there is more than about 71% ethanol, the remainder can be any proportion of water or gasoline and phase separation does not occur.
[48] [49] Gasoline sold in Brazil contains at least 25% anhydrous ethanol. Hydrous ethanol (about 95% ethanol and 5% water) can be used as fuel in more than 90% of new gasoline-fueled cars sold in the country. The US and many other countries primarily use E10 (10% ethanol, sometimes known as gasohol) and E85 (85% ethanol) ethanol/gasoline mixtures.
In 2007 Portland, Oregon, became the first city in the United States to require all gasoline sold within city limits to contain at least 10% ethanol. [36] [37] As of January 2008, three states — Missouri, Minnesota, and Hawaii — require ethanol to be blended with gasoline motor fuel. Many cities also require ethanol blends due to non ...
In other words, for the same energy content as one liter or one gallon of gasoline, one needs 1.6 liters/gallons of ethanol and 2.1 liters/gallons of methanol. The raw energy-per-volume numbers produce misleading fuel consumption numbers, however, because alcohol-fueled engines can be made substantially more energy-efficient.
Trump is not expected to change this law, which was adopted in 2007 and set a target of 36 billion gallons of ethanol by 2022. Trump Directs EPA to Loosen Rules on Ethanol in Gasoline Skip to main ...
In 2007, Portland, Oregon, became the first U.S. city to require all gasoline sold within city limits to contain at least 10% ethanol. [41] [42] Chicago has proposed the idea of mandating E15 in the city limits, while some area gas stations have already begun offering it. [43] [44]
Vanilla extract is a must-have ingredient in cookies, biscotti, cake and so many more baked goods. While extract is a more convenient and affordable way to add flavor to recipes than a vanilla ...