The utilisation of fly ash in CO2 mineral carbonation

• Autorzy: Jaschik J. , Jaschik M. , Warmuziński K.

Identyfikatory

DOI

10.1515/cpe-2016-0004

• Języki publikacji: EN

Abstrakty

EN

The fixation of CO2 in the form of inorganic carbonates, also known as mineral carbonation, is an interesting option for the removal of carbon dioxide from various gas streams. The captured CO2 is reacted with metal-oxide bearing materials, usually naturally occurring minerals. The alkaline industrial waste, such as fly ash can also be considered as a source of calcium or magnesium. In the present study the solubility of fly ash from conventional pulverised hard coal fired boilers, with and without desulphurisation products, and fly ash from lignite fluidised bed combustion, generated by Polish power stations was analysed. The principal objective was to assess the potential of fly ash used as a reactant in the process of mineral carbonation. Experimental were done in a 1 dm 3 reactor equipped with a heating jacket and a stirrer. The rate of dissolution in water and in acid solutions was measured at various temperatures (20 – 80ºC), waste-to-solvent ratios (1:100 – 1:4) and stirrer speeds (300 – 1100 min -1). Results clearly show that fluidised lignite fly ash has the highest potential for carbonation due to its high content of free CaO and fast kinetics of dissolution, and can be employed in mineral carbonation of CO2.

Słowa kluczowe

EN

mineral carbonation; sequestration of CO2; industrial waste; fly ash; dissolution

PL

sekwestracja CO2; odpady przemysłowe; popiół lotny; rozpuszczanie

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering
• Rocznik: 2016
• Tom: Vol. 37, nr 1
• Strony: 29--39
• Opis fizyczny: Bibliogr. 16 poz., tab., rys.

Twórcy

autor

Jaschik J.

• Polish Academy of Sciences, Institute of Chemical Engineering, ul. Baltycka 5, Gliwice, Poland

autor

Jaschik M.

• Polish Academy of Sciences, Institute of Chemical Engineering, ul. Baltycka 5, Gliwice, Poland

autor

Warmuziński K.

• Polish Academy of Sciences, Institute of Chemical Engineering, ul. Baltycka 5, Gliwice, Poland

Bibliografia

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