Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
The modeling of oxygen transport in MIEC oxide hollow fiber membranes. / Shubnikova, E. V.; Popov, M. P.; Bychkov, S. F. и др.
в: Chemical Engineering Journal, Том 372, 15.09.2019, стр. 251-259.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - The modeling of oxygen transport in MIEC oxide hollow fiber membranes
AU - Shubnikova, E. V.
AU - Popov, M. P.
AU - Bychkov, S. F.
AU - Chizhik, S. A.
AU - Nemudry, A. P.
N1 - Publisher Copyright: © 2019 Elsevier B.V.
PY - 2019/9/15
Y1 - 2019/9/15
N2 - The paper presents a model of oxygen transport in oxygen-permeable hollow fiber membranes taking into account the gradual changes of oxygen partial pressure in flows of feed and sweep gases along the HF membrane. The model is based on fulfilling local mass balance conditions linking oxygen flows in feed and sweep gases with the oxygen flux through the membrane. Computer simulation of oxygen permeation data for hollow fiber membranes made from mixed ionic electronic conducting oxides (Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3- δ , Ba 0.5 Sr 0.5 Co 0.78 W 0.02 Fe 0.2 O 3- δ and Ba 0.5 Sr 0.5 Co 0.75 Mo 0.05 Fe 0.2 O 3- δ ) was carried out using different models. The oxygen permeability model based on the semi-empirical dependence of the oxygen flux on oxygen partial pressure J O 2 =γ(T)(pO 2,1 n -pO 2,2 n ) gives the most accurate description of the experimental data. An analysis of the activation energy of the effective oxygen flux coefficient γ(T) indicates that the rate determining step is a surface reaction.
AB - The paper presents a model of oxygen transport in oxygen-permeable hollow fiber membranes taking into account the gradual changes of oxygen partial pressure in flows of feed and sweep gases along the HF membrane. The model is based on fulfilling local mass balance conditions linking oxygen flows in feed and sweep gases with the oxygen flux through the membrane. Computer simulation of oxygen permeation data for hollow fiber membranes made from mixed ionic electronic conducting oxides (Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3- δ , Ba 0.5 Sr 0.5 Co 0.78 W 0.02 Fe 0.2 O 3- δ and Ba 0.5 Sr 0.5 Co 0.75 Mo 0.05 Fe 0.2 O 3- δ ) was carried out using different models. The oxygen permeability model based on the semi-empirical dependence of the oxygen flux on oxygen partial pressure J O 2 =γ(T)(pO 2,1 n -pO 2,2 n ) gives the most accurate description of the experimental data. An analysis of the activation energy of the effective oxygen flux coefficient γ(T) indicates that the rate determining step is a surface reaction.
KW - Computer simulation
KW - Doped BSCF
KW - Hollow fiber membranes
KW - Oxygen transport membranes
KW - METHANE
KW - PERMEABILITY
KW - STABILITY
KW - CERAMIC-BASED MEMBRANES
KW - PERMEATION
KW - COBALT
UR - http://www.scopus.com/inward/record.url?scp=85064683827&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2019.04.126
DO - 10.1016/j.cej.2019.04.126
M3 - Article
AN - SCOPUS:85064683827
VL - 372
SP - 251
EP - 259
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
SN - 1385-8947
ER -
ID: 19647753