Co-gasification of coal and biomass is a proven method to improve gasification performance and a platform towards being independent of fossil fuel in power generation.Thus,this research was conducted to assess the feasibility of coal and EFB as fuels in co-gasification using Aspen HYSYS.A sequential model of an EFG was developed to predict the syngas composition and the optimum operating condition of the gasifier.The process was modelled with a set of five reactors to simulate various reaction zones of EFG in accordance with its hydrodynamics.The model considers devolatilization,char and volatile combustion,char gasification and water-gas shift reactions.The model prediction has exhibited excellent agreement with the experimental results.Three parameters of BR,Top and S/F were considered to account for their impacts on syngas composition in the process.The CE,CGE,PE and HHV were adopted as the indicators of process performance.The optimal values of BR,Top and S/F were 50%,950°C and 0.75,respectively.While the value of CE reached above 90% and the maximum value of CGE,PE and HHV was obtained.This finding should be helpful in designing,operating,optimizing and controlling any co-gasification process especially in the entrained flow system.
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