Thermochemical analysis of a flue gas-driven biomass gasification

• Authors: Rafał Litka , Sylwester Kalisz
• Languages of publication: EN

Abstracts

EN

One of the methods of obtaining energy from renewable sources is the technology of indirect cofiring of biomass. It consists in the gasification of secondary fuel and combustion of the generated gas in the boiler together with its primary fuel. The paper presents a thermodynamic analysis of the use of the boiler flue gases as the converting medium in the process of indirect co-firing - a technology which is being developed at the Institute of Power Engineering and Turbomachinery of the Silesian University of Technology. The basis of the analysis are the data resulting from variant calculations conducted with the use of the Gaseq program. The calculations were made for various compositions of gasified fuel and the converting medium, variable fuel/oxidiser ratios and variable gasification temperatures. As a result, the equilibrium composition and the calorific value of the generated gas were obtained. The main optimisation objective adopted here was the nondimensional efficiency coefficient, which is the ratio of the chemical energy of products to the chemical energy of the process reactants.

Keywords

EN

co-firing; gasification; biomass; chemical equilibrium

• Publisher: De Gruyter Open
• Journal: Chemical and Process Engineering
• Year: 2012
• Volume: 33
• Issue: 3
• Pages: 487-503

Dates

published

1 - 10 - 2012

received

accepted

online

31 - 10 - 2012

Contributors

author

Rafał Litka

• Silesian University of Technology in Gliwice, Institute of Power Engineering and Turbomachinery, 44-100 Gliwice, ul. Konarskiego 20, Poland

author

Sylwester Kalisz

• Silesian University of Technology in Gliwice, Institute of Power Engineering and Turbomachinery, 44-100 Gliwice, ul. Konarskiego 20, Poland

References

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• Orłowski P., Dobrzański W., Szwarc E., 1979. Steam boilers. Design and calculations. Wydawnictwa Naukowo-Techniczne, Warsaw (in Polish).
• Tomeczek J., 1991. Coal gasification. Wydawnictwo Politechniki Śląskiej, Gliwice (in Polish).

Identifiers

DOI

10.2478/v10176-012-0041-y