1 / 10

A Quick Review chapter 15

A Quick Review chapter 15. Oil supplies 1/3 of the world’s energy. Saudia Arabia has the most oil reserves In US, oil supplies 39% of our energy. Fig 15.3

jon
Download Presentation

A Quick Review chapter 15

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. A Quick Reviewchapter 15

  2. Oil supplies 1/3 of the world’s energy. • Saudia Arabia has the most oil reserves • In US, oil supplies 39% of our energy. Fig 15.3 • Net Energy- it takes energy to get energy. Is the useful energy available – the energy needed to extract, process and transport. The higher the net energy, the better and more efficient. For power plants, surface mined coal has highest net ratio and solar the lowest.

  3. Oil • Petroleum (crude oil) • Formed from decaying remains • Oil and gas often trapped together • After extraction it must be refined. Chemicals separated by boiling point. See diagram. Petrochemicals- raw materials in industrial chemicals like cleaning fluids, pesticides • Largest users are US, China and Japan • OPEC- 60% of world’s crude oil

  4. Global oil production peaks when the demand for oil exceeds the amount that can be produced • Consequences of oil prices rising: food and plastics, pesticides, asphalt increase. Food production more localized, air fares increase, increase demand for fuel efficient cars, mass transit demands and moving to city

  5. US- 85% of energy from fossil fuels • Import most oil because it is cheaper. • ¼ of world’s oil is controlled by states that support terrorism. • Oil reserves in Gulf of Mexico, ANWR • Some oil is not recovered b/c it is too thick to pump or too costly. 1/3 (genetically engineered bacteria to increase flow) • Burning oil for transportation= 43% CO2 emissions

  6. OIL (TAR) SANDS • Slow-flowing, viscous deposits of bitumen mixed with sand, water and clay • ¾ of world’s reserves are in Alberta, Canada under a huge area of remote boreal forest. Equal to 7x that of oil reserves of Saudi Arabia. • Can be easily transported

  7. ¾ of world’s reserves are in Alberta, Canada under a huge area of remote boreal forest. Equal to 7x that of oil reserves of Saudi Arabia. Can be easily transported

  8. drawbacks Mining is very energy intensive Uses lots of water Requires lots of energy to process Overall efficiency is lower and releases more CO2 than conventional oil. Net energy yield is low

  9. Oil Shale Some rocks contain a solid combustible mixture of hydrocarbons called kerogen. It is extracted from crushed oil shales after being heated in a large container. 72% of world’s estimated reserves are in Colorado, Wyoming and Utah. Believed these deposits contain an amount of potentially recoverable heavy oil equal to almost 4x the size of Saudi Arabia’s oil reserves. Can be easily transported within countries

  10. Disadvantages of oil shale • Low net energy yield • Releases CO2 and other pollutants when produced and burned • Severe land disruption and high water use

More Related