Sorption of hydrogen chloride in the fluidized bed reactor

• Autorzy: Olek Małgorzata , Żukowski Witold , Baron Jerzy

Identyfikatory

DOI

10.1515/eces-2019-0006

Warianty tytułu

PL

Sorpcja chlorowodoru w komorze paleniskowej reaktora fluidyzacyjnego

• Języki publikacji: EN

Abstrakty

EN

Combustion of fuels, including renewable fuels and thermal treatment of waste (CFCs, pesticides), is associated with emissions of pollutants including halogens. The reversible process of sorption/desorption of HCl, in a fluidized (bubbling) bed reactor (BFB), during co-combustion of Cl-materials, was carried out. The thermal decomposition of methylene chloride (DCM, CH₂Cl₂) in an inert sand bed with the addition of the hydroxyapatite sorbent (HAp, Ca₅(PO₄)₃(OH)) was investigated. The process parameters were as follows: temperature - 930 °C, the air excess - 1.3, stream rate of CH₂Cl₂ - 50 cm³/h. The concentration of HCl, CCl₄, CHCl₃, CH₂Cl₂, CH₃Cl, COCl₂ in the exhaust gases were monitored online with FTIR spectroscopy. The main chlorine product was hydrogen chloride. Samples of unprocessed HAp, taken from the bed during the process, and solid apatite residues were analyzed by X-ray diffraction (XRD). The content of chlorapatite (Ca₅(PO₄)₃Cl) in the analyzed samples was respectively 11, 53 and 19 %. X-ray fluorescence (XRF) analysis showed the molar ratio of Ca:P:Cl was: 1.00:0.36:0.01, 1.00:0.36:0.09, 1.00:0.37:0.04 respectively. The HAp could be used as an sorbent of the HCl(g) during combustion of materials containing chlorine.

Słowa kluczowe

EN

chlorine; fluidized bed combustion; hydroxyapatite; sorption

PL

chlor; spalanie w złożu fluidalnym; hydroksyapatyt; sorpcja

• Wydawca: Towarzystwo Chemii i Inżynierii Ekologicznej
• Czasopismo: Ecological Chemistry and Engineering. S
• Rocznik: 2019
• Tom: Vol. 26, nr 1
• Strony: 69--80
• Opis fizyczny: Bibliogr. 35 poz., rys., wykr., tab.

Twórcy

autor

Olek Małgorzata

• Faculty of Environmental Engineering, Cracow University of Technology, ul. Warszawska 24, 31-155 Kraków, Poland, phone [phone]

autor

Żukowski Witold

• Faculty of Chemical Engineering and Technology, Cracow University of Technology, ul. Warszawska 24, 31-155 Kraków, Poland, phone [phone]

autor

Baron Jerzy

• Faculty of Chemical Engineering and Technology, Cracow University of Technology, ul. Warszawska 24, 31-155 Kraków, Poland, phone [phone]

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).