TY - JOUR
T1 - Aqueous-Phase Reforming in a Microreactor
T2 - The Role of Surface Bubbles
AU - Ripken, Renée M.
AU - Wood, Jeffery A.
AU - Gardeniers, Johannes G.E.
AU - Le Gac, Séverine
PY - 2019/10/1
Y1 - 2019/10/1
N2 - In heterogeneous catalysis, the creation of gaseous products as bubbles in a liquid phase on the catalytic surface is associated with slip phenomena. In a microreactor, the slip length at the gas‐liquid interface is in the same order of magnitude as the reactor dimensions, which can affect fluid dynamics and transport phenomena. Here, the interplay of momentum, heat and mass transfer in a microreactor, when bubbles form on the catalytic surface, was investigated using two‐dimensional simulations. The effect of bubbles on the endothermic process of aqueous‐phase reforming of a glycerol solution was evaluated in terms of conversion and conversion and temperature in the reactor. Altogether, this study highlights the impact of bubbles, not only on the transport phenomena but also on the reactor performance.
AB - In heterogeneous catalysis, the creation of gaseous products as bubbles in a liquid phase on the catalytic surface is associated with slip phenomena. In a microreactor, the slip length at the gas‐liquid interface is in the same order of magnitude as the reactor dimensions, which can affect fluid dynamics and transport phenomena. Here, the interplay of momentum, heat and mass transfer in a microreactor, when bubbles form on the catalytic surface, was investigated using two‐dimensional simulations. The effect of bubbles on the endothermic process of aqueous‐phase reforming of a glycerol solution was evaluated in terms of conversion and conversion and temperature in the reactor. Altogether, this study highlights the impact of bubbles, not only on the transport phenomena but also on the reactor performance.
KW - Bubbles
KW - Heat and mass transport
KW - Heterogeneous catalysis
KW - Microfluidics
KW - Slip velocity
KW - 22/4 OA procedure
UR - http://www.scopus.com/inward/record.url?scp=85070088554&partnerID=8YFLogxK
U2 - 10.1002/ceat.201900142
DO - 10.1002/ceat.201900142
M3 - Article
SN - 0930-7516
VL - 42
SP - 2179
EP - 2186
JO - Chemical engineering and technology
JF - Chemical engineering and technology
IS - 10
ER -