Bioethanol - Revision history

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2026-08-04T20:43:52Z

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energy>Jmdonev at 17:24, 15 July 2026

2026-07-15T17:24:13Z

← Older revision		Revision as of 17:24, 15 July 2026
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	~~[[category:fuels]]~~		[[Category:Done 2026-08-01]]
	[[Category:Done ~~2016~~-12-31]]
	Ethanol is a flammable colorless liquid. <onlyinclude>When used as an alternative [[fuel]], ethanol is referred to simply as '''Bioethanol'''. Bioethanol is frequently used as motor fuel or as an additive in gasoline and is an option for more "renewable" energy.</onlyinclude> For information on the basic chemical properties of this substance, see [[ethanol]].		Ethanol is a flammable colorless liquid. <onlyinclude>When used as an alternative [[fuel]], ethanol is referred to simply as '''Bioethanol'''. Bioethanol is frequently used as motor fuel or as an additive in gasoline and is an option for more "renewable" energy.</onlyinclude> For information on the basic chemical properties of this substance, see [[ethanol]].

	[[File:Bioethanol plant.jpg~~\|800px~~\|framed\|center\| Figure 1: Bioethanol manufacturing plant. <ref>[CC BY 3.0 de (http://creativecommons.org/licenses/by/3.0/de/deed.en)], via Wikimedia Commons</ref>]]		[[File:Bioethanol plant.jpg\|framed\|center\| Figure 1. Bioethanol manufacturing plant. <ref>[CC BY 3.0 de (http://creativecommons.org/licenses/by/3.0/de/deed.en)], via Wikimedia Commons</ref>]]

	==Production==		==Production==

	Ethanol is either produced from [[petroleum]] or [[biomass]]. It is the ethanol produced from biomass that is most often referred to as bioethanol. Bioethanol is chemically identical to petroleum derived ethanol. Usual feedstocks of bioethanol include corn, switchgrass, sugar cane, algae, or other biomass. The feedstocks undergo fermentation, during which certain species of yeast digest the sugar contained in the feedstocks. The process releases bioethanol and [[carbon dioxide]]. Ethanol is mainly produced in Brazil, the United States, Europe, and South Africa.<ref>J. M. Urbanchuk, G. Barker, W. Wells. (2005). ''Economics of a Queensland Ethanol Industry'' [Online]. Available: http://web.archive.org/web/20080718185555/http://www.grainscouncil.com/Policy/Biofuels/Qld_Biofuels_study.pdf [23 October, 2013]</ref>		Ethanol is either produced from [[petroleum]] or [[biomass]]. It is the ethanol produced from '''biomass''' that is most often referred to as '''bioethanol'''. Bioethanol is ''chemically identical'' to petroleum derived ethanol. Usual feedstocks of bioethanol include:

			* corn,
			* switchgrass,
			* sugar cane,
			* algae,
			* or other biomass.

			The feedstocks undergo fermentation, during which certain species of yeast digest the sugar contained in the feedstocks. The process releases bioethanol and [[carbon dioxide]]. Ethanol is mainly produced in Brazil, the United States, Europe, and South Africa.<ref>J. M. Urbanchuk, G. Barker, W. Wells. (2005). ''Economics of a Queensland Ethanol Industry'' [Online]. Available: http://web.archive.org/web/20080718185555/http://www.grainscouncil.com/Policy/Biofuels/Qld_Biofuels_study.pdf [23 October, 2013]</ref> Figure 1 above shows what a bioethanol manufacturing plant looks like.

	==Uses==		==Uses==
	[[File:biobus.JPG\|400px\|framed\|Figure 2: A bioethanol fueled city bus. <ref>[GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons</ref>]]		[[File:biobus.JPG\|400px\|framed\|Figure 2: A bioethanol fueled city bus. <ref>[GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons</ref>]]

	Besides alcoholic beverage production, ethanol is also used as an [[alternative fuel]] to [[gasoline]] for [[heat engine#internal combustion engine\|internal combustion engines]]. It can be mixed with gasoline to any percentage~~, and all~~ existing gasoline engines on automobiles can operate with blends of up to 10% ethanol with gasoline.<ref>US Energy Information Administration. (May 1, 2014). ''Ethanol and Fuel Economy FAQ'' [Online]. Available: http://www.eia.gov/tools/faqs/faq.cfm?id=27&t=4 [February 16, 2015]</ref>		Besides alcoholic beverage production, ethanol is also used as an [[alternative fuel]] to [[gasoline]] for [[heat engine#internal combustion engine\|internal combustion engines]]. It can be mixed with gasoline to any percentage. All existing gasoline engines on automobiles can operate with blends of up to 10% ethanol with gasoline.<ref>US Energy Information Administration. (May 1, 2014). ''Ethanol and Fuel Economy FAQ'' [Online]. Available: http://www.eia.gov/tools/faqs/faq.cfm?id=27&t=4 [February 16, 2015]</ref>

	However, ethanol has a lower [[energy density]] than that of gasoline, meaning more ethanol - in terms of volume and mass - needs to be combusted to produce the same amount of [[energy]]. In fact, energy per unit volume of ethanol is 34% lower than that of gasoline,<ref>Russian Biofuels Association. (2007). ''What is bioethanol'' [Online]. Available: http://www.biofuels.ru/bioethanol/What_bioethanol [23 October, 2013]</ref> therefore 1.5 [[gallon]]s of ethanol contains approximately the same amount of energy as one gallon of gasoline does.		However, ''ethanol has a lower [[energy density]] than that of gasoline'', meaning more ethanol (in terms of volume and mass) needs to be combusted to produce the same amount of [[energy]]. In fact, energy per unit volume of ethanol is 34% lower than that of gasoline,<ref>Russian Biofuels Association. (2007). ''What is bioethanol'' [Online]. Available: http://www.biofuels.ru/bioethanol/What_bioethanol [23 October, 2013]</ref> therefore 1.5 [[gallon]]s of ethanol contains approximately the same amount of energy as one gallon of gasoline does.

	An additional advantage of ethanol is that it has a higher [[octane rating]] than gasoline, allowing engine designs with higher compression ratios~~, meaning~~ ethanol driven engines can be designed to have higher [[thermal efficiency]]. Although the energy contained per gallon of ethanol is less than gasoline, as the energy within the ~~fuels~~ is converted to the mechanical movements of the vehicle, the ethanol engine will waste less energy as compared to that of gasoline. An ethanol-only engine can be designed for better theoretical [[power]] output and higher thermal efficiency, meaning an ethanol powered car will have better performance and waste less energy. Also, if bioethanol is used, the carbon dioxide released when ethanol is burned is balanced by the carbon dioxide captured when the crops are grown to make ethanol. This differs from petroleum, which is made from plants that grew millions of years ago. On a life cycle analysis basis, corn-based bioethanol production and use reduces greenhouse gas emissions (GHGs) by up to 52% compared to gasoline production and use. Bioethanol use could reduce GHGs by as much as 86%.<ref>US Department of Energy. (2012). ''Ethanol Benefits and Considerations'' [Online]. Available: http://www.ittc.ku.edu/~krsna/citing.htm#Website [23 October, 2013]</ref>		An additional advantage of ethanol is that it has a ''higher [[octane rating]] than gasoline'', allowing engine designs with higher compression ratios. Higher compression ratios mean that ethanol driven engines can be designed to have higher [[thermal efficiency]]. Although the energy contained per gallon of ethanol is less than gasoline, as the energy within the fuel is converted to the mechanical movements of the vehicle, the ''ethanol engine will waste less of that energy as compared to that of gasoline''. An ethanol-only engine can be designed for better theoretical [[power]] output and higher thermal efficiency, meaning an ethanol powered car will have better performance and waste less energy.

			Also, if bioethanol is used, the [[carbon dioxide]] released when ethanol is burned is balanced by the carbon dioxide captured when the crops are grown to make ethanol. This differs from petroleum, which is made from plants that grew millions of years ago. On a life cycle analysis basis, corn-based bioethanol production and use reduces greenhouse gas emissions (GHGs) by up to 52% compared to gasoline production and use. Bioethanol use could reduce GHGs by as much as 86%.<ref>US Department of Energy. (2012). ''Ethanol Benefits and Considerations'' [Online]. Available: http://www.ittc.ku.edu/~krsna/citing.htm#Website [23 October, 2013]</ref>

			== For Further Reading ==

			* [[Ethanol]]
			* [[Biomass]]
			* [[Energy density]]
			* [[Octane rating]]
			* Or explore a [[Special:Random\|random page]]

	==References==		==References==
	{{reflist}}		{{reflist}}
	[[Category:Uploaded]]		[[Category:Uploaded]]
			[[category:fuels]]

Jmdonev at 23:41, 8 January 2017

2017-01-08T23:41:15Z

← Older revision		Revision as of 23:41, 8 January 2017
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	Ethanol is a flammable colorless liquid. <onlyinclude>When used as an alternative [[fuel]], ethanol is referred to simply as '''Bioethanol'''. Bioethanol is frequently used as motor fuel or as an additive in gasoline and is an option for more "renewable" energy.</onlyinclude> For information on the basic chemical properties of this substance, see [[ethanol]].		Ethanol is a flammable colorless liquid. <onlyinclude>When used as an alternative [[fuel]], ethanol is referred to simply as '''Bioethanol'''. Bioethanol is frequently used as motor fuel or as an additive in gasoline and is an option for more "renewable" energy.</onlyinclude> For information on the basic chemical properties of this substance, see [[ethanol]].

			[[File:Bioethanol plant.jpg\|800px\|framed\|center\| Figure 1: Bioethanol manufacturing plant. <ref>[CC BY 3.0 de (http://creativecommons.org/licenses/by/3.0/de/deed.en)], via Wikimedia Commons</ref>]]
	[[File:Bioethanol plant.jpg\|800px\|framed\|<center> Figure 1: Bioethanol manufacturing plant. <ref>[CC BY 3.0 de (http://creativecommons.org/licenses/by/3.0/de/deed.en)], via Wikimedia Commons</ref>]]

	==Production==		==Production==

Jmdonev at 23:40, 8 January 2017

2017-01-08T23:40:28Z

← Older revision		Revision as of 23:40, 8 January 2017
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	[[Category:Done 2016-12-31]]		[[Category:Done 2016-12-31]]
	Ethanol is a flammable colorless liquid. <onlyinclude>When used as an alternative [[fuel]], ethanol is referred to simply as '''Bioethanol'''. Bioethanol is frequently used as motor fuel or as an additive in gasoline and is an option for more "renewable" energy.</onlyinclude> For information on the basic chemical properties of this substance, see [[ethanol]].		Ethanol is a flammable colorless liquid. <onlyinclude>When used as an alternative [[fuel]], ethanol is referred to simply as '''Bioethanol'''. Bioethanol is frequently used as motor fuel or as an additive in gasoline and is an option for more "renewable" energy.</onlyinclude> For information on the basic chemical properties of this substance, see [[ethanol]].


	[[File:Bioethanol plant.jpg\|800px\|framed\|<center> Figure 1: Bioethanol manufacturing plant. <ref>[CC BY 3.0 de (http://creativecommons.org/licenses/by/3.0/de/deed.en)], via Wikimedia Commons</ref>]]		[[File:Bioethanol plant.jpg\|800px\|framed\|<center> Figure 1: Bioethanol manufacturing plant. <ref>[CC BY 3.0 de (http://creativecommons.org/licenses/by/3.0/de/deed.en)], via Wikimedia Commons</ref>]]

Jmdonev: 1 revision imported

2017-01-08T23:36:29Z

1 revision imported

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Jmdonev at 20:38, 3 December 2016

2016-12-03T20:38:34Z

← Older revision		Revision as of 20:38, 3 December 2016
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	[[category:fuels]]		[[category:fuels]]
	[[Category:Done ~~2015~~-02-15]]		[[Category:Done 2016-12-31]]
	Ethanol is a flammable colorless liquid. <onlyinclude>When used as an alternative [[fuel]], ethanol is referred to simply as '''Bioethanol'''. Bioethanol is frequently used as motor fuel or as an additive in gasoline and is an option for more "renewable" energy.</onlyinclude> For information on the basic chemical properties of this substance, see [[ethanol]].		Ethanol is a flammable colorless liquid. <onlyinclude>When used as an alternative [[fuel]], ethanol is referred to simply as '''Bioethanol'''. Bioethanol is frequently used as motor fuel or as an additive in gasoline and is an option for more "renewable" energy.</onlyinclude> For information on the basic chemical properties of this substance, see [[ethanol]].

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	[[File:biobus.JPG\|400px\|framed\|Figure 2: A bioethanol fueled city bus. <ref>[GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons</ref>]]		[[File:biobus.JPG\|400px\|framed\|Figure 2: A bioethanol fueled city bus. <ref>[GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons</ref>]]

	Besides alcoholic beverage production, ethanol is also used as an [[alternative fuel]] to [[gasoline]] for [[heat engine#internal combustion engine\|internal combustion engines]]. It can be mixed with gasoline to any percentage, and all existing gasoline engines on automobiles can operate with blends of up to 10% ethanol with gasoline<ref>US Energy Information Administration. (May 1, 2014). ''Ethanol and Fuel Economy FAQ'' [Online]. Available: http://www.eia.gov/tools/faqs/faq.cfm?id=27&t=4 [February 16, 2015]</ref>.		Besides alcoholic beverage production, ethanol is also used as an [[alternative fuel]] to [[gasoline]] for [[heat engine#internal combustion engine\|internal combustion engines]]. It can be mixed with gasoline to any percentage, and all existing gasoline engines on automobiles can operate with blends of up to 10% ethanol with gasoline.<ref>US Energy Information Administration. (May 1, 2014). ''Ethanol and Fuel Economy FAQ'' [Online]. Available: http://www.eia.gov/tools/faqs/faq.cfm?id=27&t=4 [February 16, 2015]</ref>

	However, ethanol has a lower [[energy density]] than that of gasoline, meaning more ethanol - in terms of volume and mass - needs to be combusted to produce the same amount of [[energy]]. In fact, energy per unit volume of ethanol is 34% lower than that of gasoline,<ref>Russian Biofuels Association. (2007). ''What is bioethanol'' [Online]. Available: http://www.biofuels.ru/bioethanol/What_bioethanol [23 October, 2013]</ref> therefore 1.5 [[gallon]]s of ethanol contains approximately the same amount of energy as one gallon of gasoline does.		However, ethanol has a lower [[energy density]] than that of gasoline, meaning more ethanol - in terms of volume and mass - needs to be combusted to produce the same amount of [[energy]]. In fact, energy per unit volume of ethanol is 34% lower than that of gasoline,<ref>Russian Biofuels Association. (2007). ''What is bioethanol'' [Online]. Available: http://www.biofuels.ru/bioethanol/What_bioethanol [23 October, 2013]</ref> therefore 1.5 [[gallon]]s of ethanol contains approximately the same amount of energy as one gallon of gasoline does.

J.williams: 1 revision imported

2015-08-26T21:30:44Z

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J.williams at 22:46, 11 August 2015

2015-08-11T22:46:20Z

New page

[[category:fuels]]
[[Category:Done 2015-02-15]]
Ethanol is a flammable colorless liquid. <onlyinclude>When used as an alternative [[fuel]], ethanol is referred to simply as '''Bioethanol'''. Bioethanol is frequently used as motor fuel or as an additive in gasoline and is an option for more "renewable" energy.</onlyinclude> For information on the basic chemical properties of this substance, see [[ethanol]].

[[File:Bioethanol plant.jpg|800px|framed|<center> Figure 1: Bioethanol manufacturing plant. <ref>[CC BY 3.0 de (http://creativecommons.org/licenses/by/3.0/de/deed.en)], via Wikimedia Commons</ref>]]

==Production==

Ethanol is either produced from [[petroleum]] or [[biomass]]. It is the ethanol produced from biomass that is most often referred to as bioethanol. Bioethanol is chemically identical to petroleum derived ethanol. Usual feedstocks of bioethanol include corn, switchgrass, sugar cane, algae, or other biomass. The feedstocks undergo fermentation, during which certain species of yeast digest the sugar contained in the feedstocks. The process releases bioethanol and [[carbon dioxide]]. Ethanol is mainly produced in Brazil, the United States, Europe, and South Africa.<ref>J. M. Urbanchuk, G. Barker, W. Wells. (2005). ''Economics of a Queensland Ethanol Industry'' [Online]. Available: http://web.archive.org/web/20080718185555/http://www.grainscouncil.com/Policy/Biofuels/Qld_Biofuels_study.pdf [23 October, 2013]</ref>

==Uses==
[[File:biobus.JPG|400px|framed|Figure 2: A bioethanol fueled city bus. <ref>[GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons</ref>]]

Besides alcoholic beverage production, ethanol is also used as an [[alternative fuel]] to [[gasoline]] for [[heat engine#internal combustion engine|internal combustion engines]]. It can be mixed with gasoline to any percentage, and all existing gasoline engines on automobiles can operate with blends of up to 10% ethanol with gasoline<ref>US Energy Information Administration. (May 1, 2014). ''Ethanol and Fuel Economy FAQ'' [Online]. Available: http://www.eia.gov/tools/faqs/faq.cfm?id=27&t=4 [February 16, 2015]</ref>.

However, ethanol has a lower [[energy density]] than that of gasoline, meaning more ethanol - in terms of volume and mass - needs to be combusted to produce the same amount of [[energy]]. In fact, energy per unit volume of ethanol is 34% lower than that of gasoline,<ref>Russian Biofuels Association. (2007). ''What is bioethanol'' [Online]. Available: http://www.biofuels.ru/bioethanol/What_bioethanol [23 October, 2013]</ref> therefore 1.5 [[gallon]]s of ethanol contains approximately the same amount of energy as one gallon of gasoline does.

An additional advantage of ethanol is that it has a higher [[octane rating]] than gasoline, allowing engine designs with higher compression ratios, meaning ethanol driven engines can be designed to have higher [[thermal efficiency]]. Although the energy contained per gallon of ethanol is less than gasoline, as the energy within the fuels is converted to the mechanical movements of the vehicle, the ethanol engine will waste less energy as compared to that of gasoline. An ethanol-only engine can be designed for better theoretical [[power]] output and higher thermal efficiency, meaning an ethanol powered car will have better performance and waste less energy. Also, if bioethanol is used, the carbon dioxide released when ethanol is burned is balanced by the carbon dioxide captured when the crops are grown to make ethanol. This differs from petroleum, which is made from plants that grew millions of years ago. On a life cycle analysis basis, corn-based bioethanol production and use reduces greenhouse gas emissions (GHGs) by up to 52% compared to gasoline production and use. Bioethanol use could reduce GHGs by as much as 86%.<ref>US Department of Energy. (2012). ''Ethanol Benefits and Considerations'' [Online]. Available: http://www.ittc.ku.edu/~krsna/citing.htm#Website [23 October, 2013]</ref>

==References==
{{reflist}}
[[Category:Uploaded]]