Determination of the interfacial area and mass transfer coefficients in the Taylor gas–liquid flow in a microchannel
Paweł Sobieszuk , Ryszard Pohorecki , Paweł Cygański , Jacek Grzelka
AbstractThe interfacial area in the Taylor (slug) gas–liquid flow in a microchannel was measured by the Danckwerts' (chemical) method, using CO2 absorption from the CO2/N2 mixture into KHCO3/K2CO3 buffer solutions, containing NaOCl as a catalyst. The rate of absorption was determined and the Danckwerts' plots were constructed. Reasonable agreement with the geometrical area measured photographically was obtained. This fact allowed to determine for the first time the mass transfer coefficients separately for liquid film and liquid caps. A correlation for the calculation of mass transfer coefficients has been proposed.
|Journal series||Chemical Engineering Science, ISSN 0009-2509|
|Publication size in sheets||0.5|
|Keywords in English||absorption, interfacial area, mass transfer, microstructure, multiphase flow, Taylor flow|
|Publication indicators||: 2011 = 2.431 (2) - 2011=2.601 (5)|
|Citation count*||24 (2015-08-24)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.