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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.
Methanol (CH 3 OH) is less expensive to sustainably produce than ethanol fuel, although it is more toxic than ethanol and has a lower energy density than gasoline. Methanol is safer for the environment than gasoline, is an anti-freeze agent, prevents dirt and grime buildup within the engine, has a higher ignition temperature and can withstand ...
A dish of ethanol aflame. Various alcohols are used as fuel for internal combustion engines.The first four aliphatic alcohols (methanol, ethanol, propanol, and butanol) are of interest as fuels because they can be synthesized chemically or biologically, and they have characteristics which allow them to be used in internal combustion engines.
The government will raise the limit on ethanol concentration in gasoline for some cars. The Environmental Protection Agency will raise the limit to as much as 15%, from the current 10%, for ...
Overall, alcohol was "a more ideal fuel than gasoline." [14] In 1914, the Free Alcohol bill is amended again to decrease the regulatory burden and encourage alcohol fuel production in the U.S. In 1917 Alexander Graham Bell says: "Alcohol makes a beautiful, clean and efficient fuel… Alcohol can be manufactured from corn stalks, and in fact ...
Ethanol burns more cleanly and more efficiently than gasoline. [46] [47] Because plants consume carbon dioxide as they grow, bioethanol has an overall lower carbon footprint than fossil fuels. [48] Substituting ethanol for oil can also reduce a country's dependence on oil imports. [49]
"Clean fuel" is defined by the emission rate targets and specific fuel recommendations (i.e. against unprocessed coal and kerosene) included in the normative guidance WHO guidelines for indoor air quality. [4] [5] There remain some 2.8 billion people who rely on unclean, polluting fuels and technologies for cooking.
For the most part, it is used in a 9:1 ratio of gasoline to ethanol to reduce the negative environmental effects of gasoline. [citation needed] There is increasing interest in the use of a blend of 85% fuel ethanol blended with 15% gasoline. This fuel blend called E85 has a higher fuel octane than most premium types of gasoline.