Properties of fly ash derived from coal combustion in air and in oxygen enriched atmosphere in a pilot plant installation Oxy-Fuel CFB 0,1 MW

• Autorzy: Bieniek J. , Ściubidło A. , Majchrzak-Kucęba I.

Warianty tytułu

PL

Właściwości popiołów lotnych pochodzących ze spalania węgla w powietrzu i w atmosferze wzbogaconej w tlen w instalacji pilotowej Oxy-Fuel CFB 0,1 MW

• Języki publikacji: EN

Abstrakty

EN

Presented are results of investigations on physical and chemical properties of fly ash. The fly ash samples derive from the combustion of hard coal in a pilot-scale laboratory 0,1 MWe boiler with circulating fluidized bed (CFB). Selected were ashes derived from combustion in three types of atmospheres: conventional air atmosphere (N2/O2 – 79%:21%), atmosphere with nitrogen replaced by carbon dioxide (CO2/O2 – 79%:21%) and oxygen enriched atmosphere (CO2/O2 – 75%:25%). Investigated was chemical composition of the obtained ashes and the content of the following elements: C, H, S, N, Al, Si, Ca, Fe, Mg, P, K, Mn, Na and Ti was determined. Carried out were also investigations concerning several more physical properties such as thermogravimetrical analysis (TGA) of decomposition, surface properties (average pore volume, micropore volume, BET and Langmuir surface areas) and particle-size distributions. In addition, determined was the loss on ignition (LOI) as well as an analysis of spectra obtained by infrared spectroscopy (FTIR) was carried out.

PL

Przedstawiono wyniki badań właściwości fizykochemicznych popiołów lotnych. Próbki popiołów pochodziły ze spalania węgla kamiennego w pilotowym laboratoryjnym kotle z cyrkulacyjną warstwą fluidalną (CFB) o mocy 0,1 MW. Wybrano popioły ze spalania w konwencjonalnej atmosferze powietrznej (N2/O2 – 79%: 21%), atmosferze z azotem wymienionym na ditlenek węgla (CO2/O2 – 79%:21%) oraz atmosferze wzbogaconej w tlen (CO2/O2 – 75%:25%). Otrzymane popioły lotne zostały zanalizowane pod kątem składów chemicznych – zawartości pierwiastków: C, H, S, N, Al, Si, Ca, Fe, Mg, P, K, Mn, Na, Ti. Przeprowadzone zostały również badania rozkładów termicznych (TGA), właściwości powierzchniowych (średnie objętości porów, objętości mikroporów, powierzchnie właściwe BET i Langmuira) oraz rozkłady uziarnienia. Ponadto oznaczono straty prażenia (LOI) oraz zanalizowano widma spektroskopii w podczerwieni (FTIR).

Słowa kluczowe

EN

fly ash; physical and chemical properties; surface properties; loss on ignition

PL

popioły lotne; właściwości fizykochemiczne; właściwości powierzchniowe; straty prażenia

• Wydawca: Oficyna Wydawnicza Energia [Stowarzyszenie Elektryków Polskich - COSiW]
• Czasopismo: Energetyka
• Rocznik: 2013
• Tom: nr 11
• Strony: 821--826
• Opis fizyczny: Bibliogr. 29 poz., rys., tab.

Twórcy

autor

Bieniek J.

• Politechnika Częstochowska, Wydział Inżynierii Środowiska i Biotechnologii

autor

Ściubidło A.

• Politechnika Częstochowska, Wydział Inżynierii Środowiska i Biotechnologii

autor

Majchrzak-Kucęba I.

• Politechnika Częstochowska, Wydział Inżynierii Środowiska i Biotechnologii

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