The Technische Universität Darmstadt has dedicated a pilot plant for capturing carbon dioxide contained in flue gases of power plants using two new methods:
- carbonate looping
- chemical looping
Chemical looping allows CO2 to be captured with hardly any loss of energy efficiency. Under this method, a dual-stage, flameless, combustion yields a stream of exhaust gases containing only CO2 and water vapor. The CO2 can then be captured and stored.
Reference
Technische Universität Darmstadt (2010, November 7). On the way to CO2-free power plants. ScienceDaily. Retrieved November 8, 2010, from http://www.sciencedaily.com /releases/2010/11/101103082306.htm
Further Reading
http://www.ausetute.com.au/combusta.html
http://www.ausetute.com.au/idealgas.html
http://www.ausetute.com.au/heatcomb.html
http://www.ausetute.com.au/greenhouse.html
http://www.ausetute.com.au/ccycle.html
Study Questions
- Explain what is meant by the term fossil fuel.
- Write a balanced chemical equation to represent the complete combustion of coal.
- Write a balanced chemical equation to represent the complete combustion of natural gas.
- If you burnt 1kg of coal and 1kg of natural gas, which reaction would produce the greatest amount of carbon dioxide?
- If you burnt 1000cm3 of solid coal, and 1000cm3 of gaseous methane, which reaction would produce the greatest amount of gaseous carbon dioxide?
- The heat of combustion of methane is 890 kJ/mol. Is energy released or absorbed during this reaction?
- When coal burns it releases energy, about 250 kJ/mol. At 25oC and 1 atmosphere pressure, is methane or coal the better fuel?
- What benefits are there in storing the carbon dioxide emitted during power generation?
- What disadvantages are there in storing carbon dioxide emitted during power generation?
- What impact could the storage of this carbon dioxide have on the natural carbon cycle?
No comments:
Post a Comment