Simulation and Study on Texaco Gasification of Semi-Cokes Prepared by DG Coal Pyrolysis Process

Abstract:

Simulation and study on Texaco gasification of semi-cokes prepared by DG coal pyrolysis process has been carried out by using Aspen Plus. The possibility that pyrolytic semi-cokes is used as the raw materials is discussed. Sensitivity study runs are performed to analyze the effects of oxygen-to-char mass ratio, mass percentage of char in char water slurry and gasification pressure on the gasification process. Simulations indicate that molar percent content of effective components (CO+H2) reaches as high as 67.94% under operational conditions which oxygen-to-char mass ratio is 0.75; char water slurry concentration is 62.5% and gasification pressure is 4.0MPa. So semi-cokes made by DG coal pyrolysis process is the excellent raw materials for gasification. Sensitivity analysis show that oxygen-to-char mass ratio and mass percentage of char in char water slurry are the main factors that affect the gasification process; gasification pressure has little effect on the results of char gasification.

• Periodical: Advanced Materials Research (Volumes 557-559)
• Pages: 2189-2196
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.557-559.2189
• Online since: July 2012
• Authors: Hui Feng Yuan, De Min He, Jun Guan, Qiu Min Zhang
• Keywords: Coal Pyrolysis, Simulation, Texaco Gasification

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