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Wyszukujesz frazę "looping" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Studies on the carbonation of Czatkowice limestone in Calcium Looping process
Autorzy:
Tomaszewicz, G.
Kotyczka-Morańska, M.
Plis, A.
Powiązania:
https://bibliotekanauki.pl/articles/778245.pdf
Data publikacji:
2016
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
calcite
limestone
calcium looping
CO2
sorbent
Opis:
The growing demand for the reduction of anthropogenic CO2 emissions has stimulated the development of CO2 capture methods. One of the best capture methods comprises the calcium looping process, which incorporates calcium-based sorbents during the calcination and carbonation cycles. Czatkowice limestone may be considered to be a prospective chemical sorbent for the calcium looping process because of its formation characteristics. This paper addresses the thermogravimetric studies conducted under varying conditions of temperature and various concentrations of CO2 during the carbonation cycles. Moreover, a kinetic analysis of the carbonation stage was performed for the calcined sample at varying temperatures. The kinetic parameters for calcination and diffusion were determined. In addition, there was an increase in the concentration of CO2 with an increased carbonation conversion. The research results demonstrate that in further cycles of carbonation/calcination, the calcium sorbent reaches a higher rate of carbonation conversion with increased levels of CO2
Źródło:
Polish Journal of Chemical Technology; 2016, 18, 2; 53-58
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of polish calcium sorbents in carbonate looping
Autorzy:
Kotyczka-Moranska, M.
Tomaszewicz, G.
Powiązania:
https://bibliotekanauki.pl/articles/109718.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
calcium looping
CO2 capture
CaO-based sorbents
Opis:
The purpose of this work was the investigation of behaviour of three Polish CaO-based sorbents during calcium looping cycles. All investigations were conducted with a Netzsch STA 409PG Luxx thermogravimetric analyser. Samples weighing ms = 10.0(1) mg were placed in an Al2O3 crucible. The calcium looping processes were performed at two carbonation temperatures (650°C and 680°C) and three calcination temperatures (880°, 900° and 920°C). Additionally, calcination-carbonation cycles with different gas flows were explored. We investigated the influence of CO2 concentration and total gas flow on carbonation conversion.
Źródło:
Physicochemical Problems of Mineral Processing; 2013, 49, 1; 111-120
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of modified calcium sorbents in carbonate looping
Autorzy:
Kotyczka-Moranska, M.
Tomaszewicz, G.
Powiązania:
https://bibliotekanauki.pl/articles/110469.pdf
Data publikacji:
2014
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
calcium looping
CO2 capture
CaO-based sorbents
Opis:
Reduction of CO2 emission is essential. In this paper, a study of the behaviour of modified Polish CaO-based sorbents during calcium looping cycles has been discussed. All the related tests were conducted using the Netzsch STA 409PG Luxx thermogravimetric analyser. Samples with a weight of ms=10.0±0.1 mg were placed in an Al2O3 crucible. The calcium looping processes were performed at the carbonation temperature of 650°C and the calcination temperature of 900°C. Additionally, calcinationcarbonation cycles with different gas flows were examined. The authors investigated the influence of CO2 concentration and total gas flow on the carbonation conversion. Sorbents were studied by TG and porosimetry analysis.
Źródło:
Physicochemical Problems of Mineral Processing; 2014, 50, 1; 217-224
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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