Upload
reenay-rogers
View
415
Download
2
Tags:
Embed Size (px)
DESCRIPTION
Corn
Citation preview
By: Ethan Carabin & Sam Foster
Who First Used It?
• Ford Motor Company
• Henry Ford’s Model T
When & Where Was It First Used?
• 1908
• The United States was first to make working corn ethanol fuel cells in cars
Why Did It Develop As An Energy Source?
• Corn Ethanol is better for the environment than regular gasoline
• With fossil fuels quickly diminishing, another fuel source was needed
How Did They Develop Or Create It?
• Corn ethanol is developed in two ways: dry mills or wet mills
• Dry mills are less expensive then wet mills but cost more energy
Diagram
Step 1
• After being cleaned in the wet mills, the corn is then taken to be steeped
• This process softens the kernel of corn for milling
Step 2
• After steeping, the corn is then moved through a machine that splits up all the parts of the corn
• The gluten is separated from the starch by centrifugation
Step 3
• The pure starch is now ready to become ethanol
• Enzymes are added to the starch to hydrolyze the starch to fermentable sugars
Step 4
• Then yeast is added to start the fermentation process
• After two days, the fermentation broth is then distilled where about 95% of the distilled broth is created into absolute ethanol
Current Uses
• Corn Ethanol is used in all types of automobiles as a fuel, similar to regular gasoline
Where Is It Currently Being Used?
• Corn ethanol is mainly used in the U.S.
• The U.S. had large areas of crop land and is able to produce a good amount of corn for food and fuel
What Are The Future Plans?
• Making every new car that is produced E-85 (Corn Ethanol gasoline) compatible
• Finding new, more efficient ways to produce Corn Ethanol
Benefit #1
• Much better for the environment than regular gasoline
Benefit #2
• Produces less harmful emissions than other fuel sources
Benefit #3
• Corn is a renewable resources, unlike fossil fuels
Benefit #4
• Corn ethanol is less toxic in car exhaust than in regular gasoline
Benefit #5
• Corn ethanol is better for the U.S. because it doesn’t require as mush dependence on imported oil
Drawback #1
• Corn ethanol production is labor intensive and can be affected by bad weather
Drawback #2
• It is more difficult to produce Corn Ethanol than it is to produce regular gasoline
Drawback #3
• Corn ethanol reduces soil carbon that possibly contributes to warming
Drawback #4
• The process of making corn ethanol uses corn which is a major crop used for food
Drawback #5
• Corn ethanol, coupled with consumption can be as worse as gasoline consumption
References
• http://www.wikinvest.com/commodity/Ethanol#Ethanol_production
• http://www.dailytech.com/Study+Corn+Ethanol+Increases+Global+Warming+Grass+Ethanol+Fights+It/article13579.htm
• http://www.foodtechinfo.com/FoodPro/FacilityTypes/311221_Wet_Corn_Milling.htm
• http://umakeethanol.com/disadvantages-of-ethanol.php
Picture References
• http://www.waymotor.com/article/408-Ford-Model-T-Turns-100
• http://graduanuniverse.blogspot.com/
• http://www.lisisoft.com/tools/cars-screensaver.html
• http://www.naturalnews.com/023092.html
• http://foodbeast.com/content/2010/09/14/corn-sugar-the-new-name-of-high-fructose-corn-syrup/
Picture References (cont.)
• http://caveatbettor.blogspot.com/2008/05/cartoon-of-day.html
• http://www.patagoniavolunteer.org/volunteer_placements.html