TY - JOUR
T1 - Mixing processes in a 3D printed large-flow microstructured reactor
T2 - Finite element simulations and experimental study
AU - Li, Xiteng
AU - Jiang, Feng
AU - Ravindra, A. V.
AU - Zhou, Junwen
AU - Zhou, Ao
AU - Le, Thiquynhxuan
AU - Peng, Jinhui
AU - Ju, Shaohua
N1 - Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/8/15
Y1 - 2019/8/15
N2 - A large-flow microstructured reactor has been designed and fabricated using microfluidics and 3D printing technology. The finite element model is used in order to study the mixing processes of the species in the reactor. The flow is cut by convection and then mixed with chaos into several zigzag channels to induce recirculation mixing. The distribution of pressure, concentration and inlet velocity of each channel are obtained by solving successively the Navier-Stokes equation and the diffusion-convection equation in the steady state form. The results illustrate the effect of both flow rate and reactor geometry on hydrodynamics efficiency and the influence of flow rate and reactor geometry on fluid dynamics. The simulation reveals the combined contribution of chaotic mixing and laminar flow recirculation with Reynolds number (Re) 1 < Re < 400. In the experimental study, microfluidic solvent extraction of copper from sulfate solution containing Cu2+ and Fe3+ using DZ988N show the extraction efficiency of copper to be greater than 75% while the extraction efficiency of iron is less than 5% at high flow rates, with the characteristics of high extraction efficiency, large treatment capacity, and wide range of application.
AB - A large-flow microstructured reactor has been designed and fabricated using microfluidics and 3D printing technology. The finite element model is used in order to study the mixing processes of the species in the reactor. The flow is cut by convection and then mixed with chaos into several zigzag channels to induce recirculation mixing. The distribution of pressure, concentration and inlet velocity of each channel are obtained by solving successively the Navier-Stokes equation and the diffusion-convection equation in the steady state form. The results illustrate the effect of both flow rate and reactor geometry on hydrodynamics efficiency and the influence of flow rate and reactor geometry on fluid dynamics. The simulation reveals the combined contribution of chaotic mixing and laminar flow recirculation with Reynolds number (Re) 1 < Re < 400. In the experimental study, microfluidic solvent extraction of copper from sulfate solution containing Cu2+ and Fe3+ using DZ988N show the extraction efficiency of copper to be greater than 75% while the extraction efficiency of iron is less than 5% at high flow rates, with the characteristics of high extraction efficiency, large treatment capacity, and wide range of application.
KW - 3D printing
KW - Finite element model
KW - Large-flow
KW - Microstructure reactor
KW - Secondary microfluidic mixing
UR - http://www.scopus.com/inward/record.url?scp=85063343627&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2019.03.187
DO - 10.1016/j.cej.2019.03.187
M3 - Article
AN - SCOPUS:85063343627
SN - 1385-8947
VL - 370
SP - 295
EP - 304
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
ER -