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An Experimental and Numerical Investigation of Fluidized Bed Gasification of Solid Waste
School of Engineering and Technology, Central Queensland University, Rockhampton, QLD 4702, Australia
School of Business and Law, Central Queensland University, Rockhampton, QLD 4702, Australia
The Corky's Group, Mayfield, NSW 2304, Australia
* Author to whom correspondence should be addressed.
Received: 24 September 2013; in revised form: 9 December 2013 / Accepted: 17 December 2013 / Published: 24 December 2013
Abstract: Gasification is a thermo-chemical process to convert carbon-based products such as biomass and coal into a gas mixture known as synthetic gas or syngas. Various types of gasification methods exist, and fluidized bed gasification is one of them which is considered more efficient than others as fuel is fluidized in oxygen, steam or air. This paper presents an experimental and numerical investigation of fluidized bed gasification of solid waste (SW) (wood). The experimental measurement of syngas composition was done using a pilot scale gasifier. A numerical model was developed using Advanced System for Process ENgineering (Aspen) Plus software. Several Aspen Plus reactor blocks were used along with user defined FORTRAN and Excel code. The model was validated with experimental results. The study found very similar performance between simulation and experimental results, with a maximum variation of 3%. The validated model was used to study the effect of air-fuel and steam-fuel ratio on syngas composition. The model will be useful to predict the various operating parameters of a pilot scale SW gasification plant, such as temperature, pressure, air-fuel ratio and steam-fuel ratio. Therefore, the model can assist researchers, professionals and industries to identify optimized conditions for SW gasification.
Keywords: gasification; fluidised bed; Aspen Plus; syngas
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MDPI and ACS Style
Begum, S.; Rasul, M.G.; Akbar, D.; Cork, D. An Experimental and Numerical Investigation of Fluidized Bed Gasification of Solid Waste. Energies 2014, 7, 43-61.
Begum S, Rasul MG, Akbar D, Cork D. An Experimental and Numerical Investigation of Fluidized Bed Gasification of Solid Waste. Energies. 2014; 7(1):43-61.
Begum, Sharmina; Rasul, Mohammad G.; Akbar, Delwar; Cork, David. 2014. "An Experimental and Numerical Investigation of Fluidized Bed Gasification of Solid Waste." Energies 7, no. 1: 43-61.