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Dynamic Modeling of Integrated Pre-Combustion CO2 Capture in Natural Gas Combined Cycle

Goshayeshi, Bahman | 2015

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 48134 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Soltanieh, Mohammad
  7. Abstract:
  8. In this project dynamic effect of changes in gas turbine load on power plant, reforming and Co2 capture section is investigate. The reason for study of effects change of gas turbine load is that gas turbine determines the performance of the other parts in combined cycle including gas cycle and change of gas turbine load can alter the load and the performance of other parts in the power plant and in other process such as production of synthesis gas and carbon dioxide separation unit. One Autothermal reactor and eight sewgs reactor are utilized to produce gas turbine fuel which is mainly consist of Hydrogen. this part of thesis is to be implemented in the gPROMS from process system enterprise Ltd. combined cycle is dynamically simulated by Hysys version 3.2. SEWGS technology combines both the water gas shift (WGS) reaction and CO2 capture in one single unit and is based on a Pressure Swing Adsorption (PSA) process which operates in a cyclic manner and products are Hydrogen rich fuel flow and CO2 rich stream flow. According to the result exhaust gas is mainly consist of steam and CO2 molar fraction is 0.01%-0.04% is calculated. CO2 capture ratio of 94.22 is calculated which is comparable to result from SEWGS modeling and experimental studies in the literature
  9. Keywords:
  10. Combined Cycle ; Hydrogen ; Dynamic Modeling ; Natural Gas ; Pre-Combustion Carbon Capture

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