Energies 2013, 6(12), 6508-6524; doi:10.3390/en6126508
Article

Performance Analysis of an Integrated Fixed Bed Gasifier Model for Different Biomass Feedstocks

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Received: 24 September 2013; in revised form: 9 December 2013 / Accepted: 9 December 2013 / Published: 16 December 2013
(This article belongs to the Special Issue Biomass and Biofuels 2013)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Energy recovery from biomass by gasification technology has attracted significant interest because it satisfies a key requirement of environmental sustainability by producing near zero emissions. Though it is not a new technology, studies on its integrated process simulation and analysis are limited, in particular for municipal solid waste (MSW) gasification. This paper develops an integrated fixed bed gasifier model of biomass gasification using the Advanced System for Process ENngineering (Aspen) Plus software for its performance analysis. A computational model was developed on the basis of Gibbs free energy minimization. The model is validated with experimental data of MSW and food waste gasification available in the literature. A reasonable agreement between measured and predicted syngas composition was found. Using the validated model, the effects of operating conditions, namely air-fuel ratio and gasifier temperature, on syngas production are studied. Performance analyses have been done for four different feedstocks, namely wood, coffee bean husks, green wastes and MSWs. The ultimate and proximate analysis data for each feedstock was used for model development. It was found that operating parameters have a significant influence on syngas composition. An air-fuel ratio of 0.3 and gasifier temperature of 700 °C provides optimum performance for a fixed bed gasifier for MSWs, wood wastes, green wastes and coffee bean husks. The developed model can be useful for gasification of other biomasses (e.g., food wastes, rice husks, poultry wastes and sugarcane bagasse) to predict the syngas composition. Therefore, the study provides an integrated gasification model which can be used for different biomass feedstocks.
Keywords: gasification; fixed bed; Aspen Plus; syngas
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MDPI and ACS Style

Begum, S.; Rasul, M.G.; Akbar, D.; Ramzan, N. Performance Analysis of an Integrated Fixed Bed Gasifier Model for Different Biomass Feedstocks. Energies 2013, 6, 6508-6524.

AMA Style

Begum S, Rasul MG, Akbar D, Ramzan N. Performance Analysis of an Integrated Fixed Bed Gasifier Model for Different Biomass Feedstocks. Energies. 2013; 6(12):6508-6524.

Chicago/Turabian Style

Begum, Sharmina; Rasul, Mohammad G.; Akbar, Delwar; Ramzan, Naveed. 2013. "Performance Analysis of an Integrated Fixed Bed Gasifier Model for Different Biomass Feedstocks." Energies 6, no. 12: 6508-6524.

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