1 / 14

Ethanol Fuel

Ethanol Fuel. SPEAR April 13, 2009. Industrial Production. glucose production. fermentation. distillation. dehydration. Plants Make Glucose. Photosynthesis 6CO 2 + 6H 2 O + light → C 6 H 12 O 6 + 6O 2 Common sources Corn Sugarcane. Fermentation. glucose → ethanol

jacob
Télécharger la présentation

Ethanol Fuel

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Ethanol Fuel SPEAR April 13, 2009

  2. Industrial Production glucose production fermentation distillation dehydration

  3. Plants Make Glucose • Photosynthesis • 6CO2 + 6H2O + light → C6H12O6 + 6O2 • Common sources • Corn • Sugarcane

  4. Fermentation glucose → ethanol C6H12O6 → 2C2H6O + 2CO2 + heat

  5. Distillation & Dehydration Removes water

  6. Industrial Production glucose production fermentation distillation dehydration

  7. Combustion • Glucose is burned to generate heat that drives pistons • C2H6O + 3O2 → 2CO2 + 3H2O + heat

  8. Overall Reaction light → heat renewable energy source!

  9. Ethanol-Only Engines • Comparable fuel economy • Pure ethanol-only engines cannot use gasoline • Max blend = E85 (85% ethanol, 15% gasoline)

  10. Problems and Solutions • Can’t be transported in gasoline pipeline • Picks up impurities • Increased transportation costs • Poet LLC and Magellan Midstream Partners LP are looking into building a 1,700-mile ethanol-only pipeline in the US

  11. Problems and Solutions • Contains less energy & is more expensive than gasoline • High energy consumption to produce • Less energy  refilling the gas tank more often • Processing methods continuously being improved • Less energy to produce by new methods • Higher energy content ethanol & lower prices

  12. Problems and Solutions • Tariff restricts importing cheaper ethanol • Sen. Gregg & Sen Feinsteinn introduced measure to remove tariff • Importing cheaper ethanol would lower price further

  13. Problems and Solutions • Increased cost of food as more crops are used for ethanol instead of food • New source “crops” are being looked into • Sugarcane • Cellulose sources

  14. Sources / More Information • Wikipedia: “Ethanol Fuel” • http://en.wikipedia.org/wiki/Ethanol_fuel • “Ethanol: Myths and Realities” • http://www.businessweek.com/technology/content/may2006/tc20060519_225336.htm • “NH Sen. Gregg introduces measure on ethanol tariff” • http://www.businessweek.com/ap/financialnews/D970KG082.htm • “Poet, Magellan to study ethanol pipeline” • http://www.businessweek.com/ap/financialnews/D96V88700.htm

More Related