Modelling of CO2, CO, SO2, O2 and NOx emissions from the oxy-fuel combustion in a circulating fluidized bed

Krzywański, Jarosław; Czakiert, Tomasz; Muskała, W.; Nowak, Wojciech

doi:10.1016/j.fuproc.2010.11.015

Cited by 50 publications

(18 citation statements)

References 8 publications

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“…As the fuel is mainly composed of lignite the kinetic parameters for the 35 reactions remained unchanged (Krzywański et al, 2010a;Krzywański et al, 2010b;Krzywański et al, 2011). Modifications of kinetic parameters concern reactions R1-R9, listed in Table 1.…”

Section: Resultsmentioning

confidence: 99%

“…The kinetic parameters for these reactions remained unchanged, since the fuel mainly constituted of lignite (Krzywański et al, 2010a;Krzywański et al, 2010b;Krzywański et al, 2011).…”

Section: Resultsmentioning

confidence: 99%

“…It combines fundamental mass balance as well as momentum equations with empirical correlations and covers 43 chemical reactions (Muskała et al, 2008;Krzywański et al, 2010a;Krzywański et al, 2010b;Krzywański et al, 2011;Krzywański et al, 2013). When fuel blend contains some amount of biomass the model needed to be modified.…”

Section: Numerical Simulations Of Co 2 Co So 2 and No X Emissionsmentioning

confidence: 99%

“…Turow Power Plant in Poland, burning both lignite and biomass. The core of the model was based on the previously established and successfully validated coal combustion model which was used for the study of coal combustion in a large-scale 235 MW e (670 t/h) CFB boiler and 0.1MW th CFB test rig (Muskała et al, 2008;Krzywański et al, 2010a;Krzywański et al, 2010b;Krzywański et al, 2011). Moreover, the procedure combines also the experience in modelling of lignite and biomass co-firing in a circulating fluidised bed (Krzywański et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Model Research of Gas Emissions From Lignite and Biomass Co-Combustion in a Large Scale CFB Boiler

Krzywański¹,

Rajczyk²,

Nowak³

2014

Chemical and Process Engineering

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The paper is focused on the idea of a combustion modelling of a large-scale circulating fluidised bed boiler (CFB) during coal and biomass co-combustion. Numerical computation results for three solid biomass fuels co-combustion with lignite are presented in the paper. The results of the calculation showed that in previously established kinetics equations for coal combustion, some reactions had to be modified as the combustion conditions changed with the fuel blend composition. Obtained CO 2 , CO, SO 2 and NO x emissions are located in borders of ± 20% in the relationship to the experimental data. Experimental data was obtained for forest biomass, sunflower husk, willow and lignite cocombustion tests carried out on the atmospheric 261 MWe COMPACT CFB boiler operated in PGE Turow Power Station in Poland. The energy fraction of biomass in fuel blend was: 7% wt , 10% wt and 15% wt . The measured emissions of CO, SO 2 and NO x (i.e. NO + NO 2 ) were also shown in the paper. For all types of biomass added to the fuel blends the emission of the gaseous pollutants was lower than that for coal combustion.

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Section: Resultsmentioning

confidence: 99%

“…The kinetic parameters for these reactions remained unchanged, since the fuel mainly constituted of lignite (Krzywański et al, 2010a;Krzywański et al, 2010b;Krzywański et al, 2011).…”

Section: Resultsmentioning

confidence: 99%

Section: Numerical Simulations Of Co 2 Co So 2 and No X Emissionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Model Research of Gas Emissions From Lignite and Biomass Co-Combustion in a Large Scale CFB Boiler

Krzywański¹,

Rajczyk²,

Nowak³

2014

Chemical and Process Engineering

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“…Such a system can be based on: 1) oxy-fuel combustion in a circulating fluidised bed [9][10][11]; 2) pulverised coal-fed boiler with oxy-combustion and the recirculation of flue gas [12,13]; 3) gas turbine using an oxy-combustion cycle with flue gas recirculation [14][15][16][17][18]; 4) gas-steam turbine using oxy-combustion and the injection of water/steam to the combustion chamber [1-3, 17, 19-23]. A double Brayton cycle with oxy-combustion in a wet combustor chamber with water condensation combined with carbon dioxide capture is analysed in paper [3].…”

Section: Literature Surveymentioning

confidence: 99%

Analiza termodynamiczna i techniczna zeroemisyjnej elektrowni dla pomorza

Ziółkowski

Badur

2017

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This paper presents the results of a thermodynamic analysis and a method of selecting individual devices and their components to design a zero-emission power plant project in Pomerania. Another aim of the paper is to present the technological abilities of the application of gas-steam turbines with a particular emphasis on enhanced energy conversion in the construction of a wet combustion chamber using cooling water transpiration and a gas-steam expander.Keywords: enhanced energy conversion, thermal transpiration, nanoscale effect Streszczenie W artykule przedstawiono wyniki analizy termodynamicznej oraz dobór poszczególnych urządzeń i ich części istotnych przy projekcie zeroemisyjnej elektrowni dla Pomorza. Kolejnym celem pracy jest przedstawienie technologicznych możliwości wdrożenia turbiny gazowo-parowej, ze szczególnym uwzględnieniem zagadnień wzmożonej konwersji energii przy konstrukcji mokrej komory spalania wykorzystującej chłodze-nie transpiracyjne wodą i ekspandera gazowo-parowego.Słowa kluczowe: wzmożona konwersja energii, termiczna transpiracja, efekty nanoskali 198

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