한국수소및신에너지학회논문집 (Transactions of the Korean hydrogen and new energy society)

  • 제21권5호
  • /
  • Pages.460-469
  • /
  • 2010
  • /
  • 1738-7264(pISSN)
  • /
  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
권호 표지

300MW급 IGCC를 위한 건식 분류층 석탄 가스화 공정의 동적 상태 모사

The Process Simulation of Entrained Flow Coal Gasification in Dynamic State for 300MW IGCC

  • 김미영 (한국전력공사 전력연구원) ;
  • 주용진 (한국전력공사 전력연구원) ;
  • 최인규 (한국전력공사 전력연구원) ;
  • 이중원 (한국전력공사 전력연구원)
  • 투고 : 2010.07.08
  • 심사 : 2010.10.20
  • 발행 : 2010.10.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

To develop coal gasfication system, many studies have been actively conducted to describe the simulation of steady state. Now, it is necessary to study the gasification system not only in steady state but also in dynamic state to elucidate abnormal condition such as start-up, shut-down, disturbance, and develop control logic. In this study, a model was proposed with process simulation in dynamic state being conducted using a chemical process simulation tool, where a heat and mass transfer model in the gasifier is incorporated, The proposed model was verified by comparison of the results of the simulation with those available from NETL (National Energy Technology Laboratory) report under steady state condition. The simulation results were that the coal gas efficiency was 80.7%, gas thermal efficiency was 95.4%, which indicated the error was under 1 %. Also, the compositions of syngas were similar to those of the NETL report. Controlled variables of the proposed model was verified by increasing oxygen flow rate to gasifier in order to validate the dynamic state of the system. As a result, trends of major process variables were resonable when oxygen flow rate increased by 5% from the steady state value. Coal flow rate to gasifier and quench gas flow rate were increased, and flow rate of liquid slag was also increased. The proposed model in this study is able to be used for the prediction of gasification of various coals and dynamic analysis of coal gasification.

키워드

참고문헌

  1. Liu H., Ni W., Li Z., Ma L.., "Strategic thinking on IGCC development in China", Energy policy, Vol. 36, 2008, pp. 1-11. https://doi.org/10.1016/j.enpol.2007.08.034
  2. M.Perez-Fortes, "Conceptual model and a valuation of generated power and emissions in an IGCC plant", Eergy, Vol. 34, 2009, pp. 1721-1732.
  3. Desideri U, Paolucci A, "A Performance modeling of a carbon dioxide removal system for power plants", Energy Convers Manage, Vol. 40, 1990, pp. 1899-1915.
  4. Shim H.M.., Jung S.Y., "The comparison study on the operation condition of gasification power plant with various feedstock", korean J. Chem. Eng., Vol. 26, 2009, pp. 324-331. https://doi.org/10.1007/s11814-009-0055-4
  5. 김봉근, 유정석, 김유석, "석탄 가스화기 열 및 물질정산에 관한 연구", 한국신.재생에너지학회 추계학술대회논문집, 2007, pp. 424-428.
  6. Descamps C, Bouallou C, Kanniche M, "Efficiency of an Integrated Gasification Combined Cycle(IGCC) power plant including $CO_{2}$ removal", Energy, Vol. 33, 2008, pp. 874-881. https://doi.org/10.1016/j.energy.2007.07.013
  7. Booras. G., Holt. N, "Pulverized coal and IGCC plant cost and performance estimates", Proeedings of the gasification technologies, 2004.
  8. Christopher frey H. Zhu Y, "Improved system intergrationof integrated Gasification Combined Cycle(IGCC) systems", Environ Sci Technol, Vol. 40, 2006, pp. 1693-1699. https://doi.org/10.1021/es0515598
  9. Enrico Biagini, Alessio Bardi, "Development of an Entrained Flow Gasifier Model for Process Optimization", Ind. Eng., Chem. Res., Vol. 48, 2009, pp. 9028-9033. https://doi.org/10.1021/ie801804g
  10. Patric J. Robinson, William L. Luyben, "Simple Dynamic Gasifier Model That Runs in Aspen Dynamics", Ind. Eng. Chem. Res., 2008, Vol. 47, pp. 7784-7792. https://doi.org/10.1021/ie800227n
  11. Peter Schoen, "Dynamic Modeling and Control of Integrated Coal Gasification Combined Cycle Units", Doctor Thesis, Delft Univ., 1993, pp. 9-13.
  12. Wen C.Y, Chaung T.Z., "Entrainment coal gasification modeling", Ind. Eng. Chem., Vol. 18, No 4, 1979, pp. 684-695. https://doi.org/10.1021/i260072a020
  13. Kou H., "Simulation of IGCC Hasification System", Master thesis, North China Electric Power Univ., 2004, pp. 21-29.
  14. V.Ganpathy, "Nomogram estimates melting point of ash", Power Eng, 1978, pp. 61.
  15. Julianne M. Klara, "Cost and Perfomance Baseline for Fossil Energy Plants", NETL Final Roport, 2007, p. 31, pp. 226-258.
  16. F.Emun, M. Gadalla, T.Majozi, D.Boer, "Integrated gasification combined cycle(IGCC) process simulation and optimization", Computers and Chemical Engineering, 2010, Vol. 34, pp. 331-338. https://doi.org/10.1016/j.compchemeng.2009.04.007
  17. 지준화, "기공 구조와 반응 부산물의 영향을 고려한 촤의 가스화 모델", 한국수소및신에너지학회 논문집, 2010, Vol. 21, No. 4, pp. 328-339.