An Equilibrium Model of Dewatered Sludge Combustion Using ASPEN PLUS

Abstract:

. Dewatered sludge is one of the largest contributors of waste materials in Malaysia and it indirectly elevates local environmental problems. The use of this waste material as an alternative fuel can be an effective solution as it not only contributes as an energy source but also solves environmental issues related to sludge disposal. In this study Advanced System for Process Engineering (ASPEN) was employed to simulate the combustion reactions of dewatered sludge based on the minimization of total Gibbs energy of the system. Analysis of combustion products was carried out and compared with previous works. The simulation results showed good agreement with the results obtained by other authors. The results showed that NOx and SO₂ emission for poultry sludge is lower than that of coal and sewage sludge. Sensitivity analysis to study the effect of changing reactor temperature and excess air on the products concentration suggested that the operational parameters would be highly influential on the combustion products.

• Periodical: Applied Mechanics and Materials (Volume 695)
• Pages: 495-498
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.695.495
• Online since: November 2014
• Authors: A.H. Abbas*, Shaharin Anwar Sulaiman, Mohmd Shiraz Aris, M. Fadhil
• Keywords: Aspen Plus, Emission, Equilibrium Model, Poultry Sludge, Sewage Sludge

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