Determination of the ozone volumetric mass transfer coefficient in bubble column with two-fluid nozzle gas distributor
Određivanje zapreminskog koeficijenta prenosa mase ozona u barbotažnoj koloni sa dvofluidnom mlaznicom

2015
Authors
Đeković-Šević, Milica
Bošković-Vragolović, Nevenka

Takić, Ljiljana
Garić Grulović, Radmila

Pejanović, Srđan
Article (Published version)
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Experimental investigation of gas-liquid mass transfer of ozone in water, in bubble column with two-fluid nozzle gas distributor (BKDM), under different operating conditions, is presented in this work. The main objective was to determine the ozone volumetric mass transfer coefficient, kL a, in calm uniform section of the column, under different values of gas and liquid flow rates. Obtained values of these coefficients were compared with the values in countercurrent bubble column. The critical liquid flowrate, when gas hold up reaches its maximum, was experimentally determined. It was shown that the maximum value of the ozone volumetric mass transfer coefficient is obtained just when liquid flowrate is at its critical value.
U ovom radu prikazani su rezultati eksperimentalnih ispitivanja prenosa mase gas-tečnost pri ozonizaciji vode u barbotažnoj koloni sa dvofluidnom mlaznicom (BKDM) pod različitim operativnim uslovima. Cilj ovih ispitivanja bio je određivanje vrednosti zapreminskog koeficijenta prenosa mase ozona u vodi, kLa, u mirnoj zoni kolone, pri različitim protocima gasne i tečne faze. U radu je dato i poređenje kLa u BKDM sa vrednostima kLa u klasičnoj protivstrujnoj barbotažnoj koloni sa poroznom pločom tj. fritom. Eksperimentalno je određena vrednost kritičnog protoka tečnosti, pri kojem sadržaj gasa u disperziji, u mirnoj zoni kolone, dostiže svoju maksimalnu vrednost. Rezultati su pokazali da se pri kritičnom protoku tečnosti dobija maksimalna vrednost zapreminskog koeficijenta prenosa mase ozona u vodi.
Keywords:
ozone volumetric mass transfer coefficient / bubble column with two-fluid nozzle gas distributor / zapreminski koeficijent prenosa mase / barbotažna kolona sa dvofluidnom mlaznicom / ozonSource:
Hemijska industrija, 2015, 69, 5, 553-559Publisher:
- Association of Chemical Engineers of Serbia
Funding / projects:
DOI: 10.2298/HEMIND140716075D
ISSN: 0367-598X
WoS: 000366948800011
Scopus: 2-s2.0-84946743068
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IHTMTY - JOUR AU - Đeković-Šević, Milica AU - Bošković-Vragolović, Nevenka AU - Takić, Ljiljana AU - Garić Grulović, Radmila AU - Pejanović, Srđan PY - 2015 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1643 AB - Experimental investigation of gas-liquid mass transfer of ozone in water, in bubble column with two-fluid nozzle gas distributor (BKDM), under different operating conditions, is presented in this work. The main objective was to determine the ozone volumetric mass transfer coefficient, kL a, in calm uniform section of the column, under different values of gas and liquid flow rates. Obtained values of these coefficients were compared with the values in countercurrent bubble column. The critical liquid flowrate, when gas hold up reaches its maximum, was experimentally determined. It was shown that the maximum value of the ozone volumetric mass transfer coefficient is obtained just when liquid flowrate is at its critical value. AB - U ovom radu prikazani su rezultati eksperimentalnih ispitivanja prenosa mase gas-tečnost pri ozonizaciji vode u barbotažnoj koloni sa dvofluidnom mlaznicom (BKDM) pod različitim operativnim uslovima. Cilj ovih ispitivanja bio je određivanje vrednosti zapreminskog koeficijenta prenosa mase ozona u vodi, kLa, u mirnoj zoni kolone, pri različitim protocima gasne i tečne faze. U radu je dato i poređenje kLa u BKDM sa vrednostima kLa u klasičnoj protivstrujnoj barbotažnoj koloni sa poroznom pločom tj. fritom. Eksperimentalno je određena vrednost kritičnog protoka tečnosti, pri kojem sadržaj gasa u disperziji, u mirnoj zoni kolone, dostiže svoju maksimalnu vrednost. Rezultati su pokazali da se pri kritičnom protoku tečnosti dobija maksimalna vrednost zapreminskog koeficijenta prenosa mase ozona u vodi. PB - Association of Chemical Engineers of Serbia T2 - Hemijska industrija T1 - Determination of the ozone volumetric mass transfer coefficient in bubble column with two-fluid nozzle gas distributor T1 - Određivanje zapreminskog koeficijenta prenosa mase ozona u barbotažnoj koloni sa dvofluidnom mlaznicom VL - 69 IS - 5 SP - 553 EP - 559 DO - 10.2298/HEMIND140716075D ER -
@article{ author = "Đeković-Šević, Milica and Bošković-Vragolović, Nevenka and Takić, Ljiljana and Garić Grulović, Radmila and Pejanović, Srđan", year = "2015", abstract = "Experimental investigation of gas-liquid mass transfer of ozone in water, in bubble column with two-fluid nozzle gas distributor (BKDM), under different operating conditions, is presented in this work. The main objective was to determine the ozone volumetric mass transfer coefficient, kL a, in calm uniform section of the column, under different values of gas and liquid flow rates. Obtained values of these coefficients were compared with the values in countercurrent bubble column. The critical liquid flowrate, when gas hold up reaches its maximum, was experimentally determined. It was shown that the maximum value of the ozone volumetric mass transfer coefficient is obtained just when liquid flowrate is at its critical value., U ovom radu prikazani su rezultati eksperimentalnih ispitivanja prenosa mase gas-tečnost pri ozonizaciji vode u barbotažnoj koloni sa dvofluidnom mlaznicom (BKDM) pod različitim operativnim uslovima. Cilj ovih ispitivanja bio je određivanje vrednosti zapreminskog koeficijenta prenosa mase ozona u vodi, kLa, u mirnoj zoni kolone, pri različitim protocima gasne i tečne faze. U radu je dato i poređenje kLa u BKDM sa vrednostima kLa u klasičnoj protivstrujnoj barbotažnoj koloni sa poroznom pločom tj. fritom. Eksperimentalno je određena vrednost kritičnog protoka tečnosti, pri kojem sadržaj gasa u disperziji, u mirnoj zoni kolone, dostiže svoju maksimalnu vrednost. Rezultati su pokazali da se pri kritičnom protoku tečnosti dobija maksimalna vrednost zapreminskog koeficijenta prenosa mase ozona u vodi.", publisher = "Association of Chemical Engineers of Serbia", journal = "Hemijska industrija", title = "Determination of the ozone volumetric mass transfer coefficient in bubble column with two-fluid nozzle gas distributor, Određivanje zapreminskog koeficijenta prenosa mase ozona u barbotažnoj koloni sa dvofluidnom mlaznicom", volume = "69", number = "5", pages = "553-559", doi = "10.2298/HEMIND140716075D" }
Đeković-Šević, M., Bošković-Vragolović, N., Takić, L., Garić Grulović, R.,& Pejanović, S.. (2015). Determination of the ozone volumetric mass transfer coefficient in bubble column with two-fluid nozzle gas distributor. in Hemijska industrija Association of Chemical Engineers of Serbia., 69(5), 553-559. https://doi.org/10.2298/HEMIND140716075D
Đeković-Šević M, Bošković-Vragolović N, Takić L, Garić Grulović R, Pejanović S. Determination of the ozone volumetric mass transfer coefficient in bubble column with two-fluid nozzle gas distributor. in Hemijska industrija. 2015;69(5):553-559. doi:10.2298/HEMIND140716075D .
Đeković-Šević, Milica, Bošković-Vragolović, Nevenka, Takić, Ljiljana, Garić Grulović, Radmila, Pejanović, Srđan, "Determination of the ozone volumetric mass transfer coefficient in bubble column with two-fluid nozzle gas distributor" in Hemijska industrija, 69, no. 5 (2015):553-559, https://doi.org/10.2298/HEMIND140716075D . .