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Modeling and Economic Assessment of CO2 Capture by Oxy-fuel Combustion in Power Plants

Khorshidi, Zakiyeh | 2009

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 40208 (46)
  4. University: Sharif University of Technology
  5. Department: Energy Engineering
  6. Advisor(s): Soltanieh, Mohammad
  7. Abstract:
  8. Considering the drastical increase of greenhouse gases in the atmosphere, especially carbon dioxide, reduction of these gases seems necessary to combat global warming. Fossil fuel power plants are one of the main sources of CO2 emission. In this paper, CO2 capture from a natural gas fired steam cycle power plant using oxy-fuel combustion technology is studied. The Integrated Environmental Control Model (IECM) developed by Carnegie Mellon University was used to evaluate the effect of this capture technology on the plant efficiency and economic parameters of the system. Since the oxygen production plant, CO2 capture and transport are cost and energy intensive, the cost of electricity generated in capture plants increases. However, it is shown in this work that if the captured CO2 is used for Enhanced Oil Recovery (EOR) in the nearby oil fields, the revenue gained can compensate for the extra cost of electricity. Assuming that the natural gas price is a function of oil price, a rough estimation of oil price in which Carbon Capture and Storage (CCS) is economically feasible can be found. The results show that at high oil prices, about $70/bbl, all the costs of CO2 capture and transport to oil field can be compensated by EOR revenues which make the integrated power plant and CCS with EOR economically feasible
  9. Keywords:
  10. Oxy Fuel Combustion ; Economic Evaluation ; Carbon Dioxide Capture ; Electricity Cost ; Enhanced Oil Recovery (EOR)Revenues ; Carbon Dioxide Avoided Cost

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