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Integrated Gasification Combined Cycle (IGCC) Technologies by Gary J. Stiegel, Ting Wang

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6

Gasification fundamentals

Thomas H. Fletcher,    Brigham Young University, Provo, UT, United States

Abstract

This chapter presents fundamentals of gasification, with a focus on solid fuel gasification, although there are some industrial applications of liquid and gaseous fuel gasification. Fundamental concepts, mechanisms, and rate laws pertaining to gasification of solid fuels are presented. Fuel characterization techniques and classification of fuels based on elemental composition ratios are described. Models of moisture evaporation, devolatilization, and heterogeneous char oxidation and gasification are reviewed, along with some commonly used rate expressions and particle energy balances. The occurrence of mineral matter in coals ...

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