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Performance Evaluation of a Two‐Stage Entrained‐Flow Coal Gasifier Using Numerical Simulation
Author(s) -
Jahromi Mohammad-Ali Yazdanpanah,
Atashkari Kazem,
Kalteh Mohammad
Publication year - 2020
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201900093
Subject(s) - wood gas generator , pulverized coal fired boiler , coal , syngas , coal gasification , particle size , waste management , flow (mathematics) , particle (ecology) , nuclear engineering , environmental science , materials science , engineering , process engineering , petroleum engineering , mechanics , chemistry , chemical engineering , physics , geology , organic chemistry , oceanography , hydrogen
An advanced air‐blown two‐stage entrained‐flow coal Mitsubishi Heavy Industries (MHI) gasifier is numerically studied under actual conditions. The simulation results are verified first with actually measured data of an industrial MHI gasifier. Then, the effects of different parameters such as the sizes of pulverized coal particles, devolatilization parameters, and operating pressure on the gasifier performance are investigated. The results indicate that as the coal particle size increases, the syngas temperature at the gasifier exit rises while the reactivity of the coal particle decreases. Reducing the operating pressure can have a negative effect on the gasifier throughput while the opposite trend is observed for higher operating pressure.