AP Environmental Science Chapter 19: Non-renewable Fuels Name______________________________________ Date___________ Chapter 19 Vocabulary Case Study: Clean Coal ~ Answer these questions 1. Describe IGCC and its importance: Integrated gasification combined cycle (IGCC). Power plants could generate electricity while capturing and permanently storing carbon dioxide and other pollutants. 2. Where is this currently taking place? Polk Power Plant in Tampa, Florida (approximately 1 year) 3. Is the coal actually being burned? How is the energy being generated. No, it is not being burned. The coal is converted into a gas and the gas is burned in a turbine. Coal is ground into a fine powder and mixed w/water to create a slurry. Slurry is pumped at high pressure into a gasification chamber, where it mixes w/96% pure oxygen and heated to 1370 degreesC (2500oF). Coal reacts w/O2 and breaks down into a variety of gases, mostly hydrogen and carbon dioxide. Gases are cooled separately and converted into managed forms. From the turbine are fed After purification, the synthetic hydrogen gas (syngas) is pumped to the combustion chamber, which spins a large magnet to produce electricity. Superheated gases from the turbine are fed into a steam generator that drives another turbine to produce more electrical energy. Combining these two turbines makes an IGCC about 15% more efficient than a normal coal-fed powerplant. 4. How are the contaminants such as sulfur dioxide, ash and mercury which are generated from the coal technology reduced/eliminated? Sulfur dioxide, ash and mercury that normally go up in smoke in a normal coal-burning powerplant are captured and sold to make the IGCC’s cleaner & economical. Sulfur is marketed as fertilizer, ash and slag are sold to cement companies. Mercury removal is an important component of this system. All slurry water is recycled to the gasifier; there is no waste water and very little solid waste. 5. State the advantages of this technology: Clean coal technology, less contaminated water, recycling of materials such as mercury, slag, ash and sulfur. It is 15% more efficient than a normal coal-fired powerplant. 6. State the disadvantages of this technology: Costs more to build an IGCC powerplant (by 15-20% more) than a conventional coal-fired powerplant, digging the coal from strip or underground mines has high environmental ramifications. Chapter 19-1 Work Joules Energy Fossil Fuels Watt --megawatt --gigawatt Power Kilowatt Kilo Watt Hour Chapter 19-2 Natural Gas Fracking Proven Reserves Coal / Clean Coal Known Reserves Chapter 19-3 Carbon Sequestration Tar Sands Oil Shale OPEC Arctic National Wildlife Refuge (ANWR) Chapter 19-4 Nuclear fusion Chain reaction Control rods Liquified Natural Gas Pressurized water reactors (PWR) Black Lung Disease Sulfur Oxide * Nitrous Oxide* Methane Hydrate Nuclear Power Megawatts Breeder reactors High-level repository Three Mile Island Carbon Dioxide* Coal Methane* Oil Mercury* Chapter 19.1 Energy Resources and Uses: Nuclear reactor Fuel assembly Nuclear fission Chernobyl 1. Name the current list of fossil fuels: 2. How has our energy consumption changed worldwide? Explain. 3. How much energy do you consume in one year? 4. Using Figure 19.5, which types of energy make up our consumption in the US? Now compare this to energy use by sector and state which sectors determine our energy consumption. 5. Which country is the single largest source of oil for the United States? 6. The largest share (roughly one-third) of the energy used in the U.S. is consumed by industry. State the types of industry which contribute to this: 7. Describe how much energy is used to bring the fuels to market? 19-2 Coal-Fill in the chart from the reading 1.Origination & Formation of Coal 2. Where are most of the deposits of coal located? 3. Concerns of underground mines? 4. State the pollutants created by coal. 5. State the major use of coal 6. Health effects on living organisms. 7. Coal is the largest single source of greenhouse gases and acid rain. How many metric tons of pollutants are released each year? a. SO2: ________________________________ 8. State which pollutants of coal be minimized prior to burning? b. NOx: ________________________________ c. Hydrocarbons: _____________ d. CO: _______________________ 8. Check out how coal is used to produce electricity at the Duke Energy site: http://www.duke-energy.com/about-energy/generating-electricity/coal-fired-how.asp Record the steps below: Coal Production Step 1. Process 2. 3. 4. 9. Compare and contrast the effects of carbon sequestration: What is carbon sequestration? Advantages of using carbon sequestration Disadvantages of using carbon sequestration Carbon capture / carbon sequestration: Is it a sustainable way of life? Explain. 19.3 Oil 1.Origination & Formation of Oil 2. Where are most of the deposits of oil located? 3. How is the oil removed from its land or sea deposits? 4. State the pollutants created by oil. 5. State the major use of oil. 6. Negative effects of using oil. 10. Which country is the largest supplier of proven-in-place oils? How many barrels are estimated? 11. What does OPEC stand for? What is their mission in the energy world? Which countries are part of OPEC and why? 12. Oil Drilling in ANWR. Why is this a controversial topic whether or not to drill for oil in ANWR? Read and take notes on this controversial topic. 13. Internet: Find an article about oil spill such as the Amoco Cadiz, the Exxon Valdez and record what occurred, where and the effects on the environment. 14. What environmental problems occur from mining and extracting shale oil? 19.4 Natural Gas 1. How does natural gas rank in comparison to other fossil fuels? 2. What makes up natural gas? 3. State the benefits of using natural gas as a resource? 4. What is the status of our natural gas resources? 5. Where are natural gas deposits found? 6. State the world’s proven reserves. Which countries are involved? 15-20. Fracking: Please read the NY Times article found at: http://www.nytimes.com/2013/03/14/opinion/global/the-facts-on-fracking.html?_r=0 And answer the following questions: 15. What is fracking and its importance? 16/17. Advantages of Fracking Negative Effects on the Environment