Estimation of reburning potential of syngas from sewage sludge gasification process

• Authors: Sebastian Werle
• Languages of publication: EN

Abstracts

EN

The motivation of this work was to define the reburning potential of sewage sludge gasification gas (syngas). Numerical simulation of co-combustion process of syngas in hard coal-fired boiler has been done. All the calculations were performed using the Chemkin program. Plug-Flow Reactor model was used. The calculations were modelled using GRI-Mech 2.11 mechanism. The highest NO conversions are obtained at the temperature of about 1000-1200 K. The highest reduction efficiency was achieved for the molar flow ratio of syngas equal to 15%. The combustion of hard coal with sewage sludge - derived syngas reduces NO emissions and the amount of coal needed to produce electricity and heat. Advanced reburning, which is a more complicated process gives efficiency of up to 80%. The calculations show that the analyzed syngas can yield better results.

Keywords

EN

gasification; sewage sludge; plug flow reactor

• Publisher: De Gruyter Open
• Journal: Chemical and Process Engineering
• Year: 2011
• Volume: 32
• Issue: 4
• Pages: 411-421

Dates

published

1 - 12 - 2011

online

15 - 2 - 2012

Contributors

author

Sebastian Werle

• Institute of Thermal Technology, The Silesian University of Technology, ul. Konarskiego 22, 44-100 Gliwice, Poland

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Identifiers

DOI

10.2478/v10176-011-0033-3