1. Erin McCoy Katie Wagner
Coal
Erin McCoy
Katie Wagner

2. How does coal work? combustible sedimentary rock
Mostly carbon and hydrocarbons
Energy locked in coal is released when burned

3. Where did it come from? Energy from plants millions of years ago
layers of dead plants at the bottom of the swamps were covered by water & dirt
Energy trapped
heat and pressure turns plant remains into coal

4. What is coal suited to do?
Most commonly used to produce electricity
Burned – heats water – creates steam – pressurized steam – turns turbine – produces electricity

5. What is coal suited to do?
iron & steel production
cement manufacturing
coal tar production
home heating
industrial applications requiring heat

6. How realistic is this energy currently?
Most abundant, but nonrenewable
50% of US electricity

7. The Future of Coal
Possibility of a coal powered car with nearly no emissions, including CO2.

8. The Future of Coal
Liang-Shih Fan –iron-oxide pellets as an oxygen source; contain the reaction in a small chamber
“oxidation” –chemical combination of a substance with oxygen.
Waste - water and coal ash
Metal is recyclable

9. The Advantages of Coal One of most abundant energy sources
Relatively inexpensive.
Useful byproducts
iron & steel production
Cement manufacture
home heating
Electricity

10. The Advantages of Coal Can be stored safely to save for emergencies
Power is not dependent on weather
Reduces dependence on oil

11. The Disadvantages of Coal
Emits carbon dioxide, sulphur dioxide, nitrogen oxides, sulphuric acids, arsenic, ash.
Can lead to acid rain
Can scar landscape and cause wildfires

12. The Disadvantages of Coal
requires an extensive transportation system (pollution)
Limited – will be entirely depleted this millennium if we continue to burn coal.
Health difficulties for miners; very dangerous to mine
Pollution

13. Questions 1. Which of the following is NOT a disadvantage of coal?
Extensive transportation
Health effects on miners
It produces radioactive waste
Pollution
2. True or False: Coal is not an abundant resource.
True
False – abundant and renewable
False – abundant and nonrenewable

14. Questions 3. What is coal made of? Just Carbon Just Hydrocarbons
Mostly Oxygen
Mostly Carbon and Hydrocarbons
4. What is the main use for coal?
Home heating
Powers cars
Electricity
Industrial uses

15. Work cited http://www.mexicaliindustrialpark.com/2011/?p=4392