TY - JOUR

T1 - Effect of asymmetric membrane structure on hydrogen transport resistance and performance of a catalytic membrane reactor for ethanol steam reforming

AU - Bobrova, Ludmilla

AU - Eremeev, Nikita

AU - Vernikovskaya, Nadezhda

AU - Sadykov, Vladislav

AU - Smorygo, Oleg

N1 - Funding Information: Funding: The studies were supported by the Ministry of Science and Higher Education of the Russian Federation within the governmental order for Boreskov Institute of Catalysis (projects AAAA-A21-121011390007-7, AAAA-A21-121011390009-1). Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/4/30

Y1 - 2021/4/30

N2 - The performance of catalytic membrane reactors (CMRs) depends on the specific details of interactions at different levels between catalytic and separation parts. A clear understanding of decisive factors affecting their operational parameters can be provided via mathematical simulations. In the present paper, main results of numerical studies of ethanol steam reforming, followed by downstream hydrogen permeation through an asymmetric supported membrane, are reported. The membrane module consists of a thin selective layer supported on a substrate with graded porous structure. One-dimensional isothermal reaction-transport model for the CMR has been developed, and its validation has been carried out by using performance data from a lab-scale reactor with a disk-shaped membrane. Simulations demonstrate the model’s capabilities to analyze local concentrations gradients, as required to provide accurate estimates of the relationship between structure-property-performance. It was shown that transport properties of multilayer asymmetric membranes are highly related to the structural properties of each single layer.

AB - The performance of catalytic membrane reactors (CMRs) depends on the specific details of interactions at different levels between catalytic and separation parts. A clear understanding of decisive factors affecting their operational parameters can be provided via mathematical simulations. In the present paper, main results of numerical studies of ethanol steam reforming, followed by downstream hydrogen permeation through an asymmetric supported membrane, are reported. The membrane module consists of a thin selective layer supported on a substrate with graded porous structure. One-dimensional isothermal reaction-transport model for the CMR has been developed, and its validation has been carried out by using performance data from a lab-scale reactor with a disk-shaped membrane. Simulations demonstrate the model’s capabilities to analyze local concentrations gradients, as required to provide accurate estimates of the relationship between structure-property-performance. It was shown that transport properties of multilayer asymmetric membranes are highly related to the structural properties of each single layer.

KW - Asymmetric supported membrane

KW - Ethanol steam reforming

KW - Membrane reactor modeling

UR - http://www.scopus.com/inward/record.url?scp=85105584614&partnerID=8YFLogxK

U2 - 10.3390/membranes11050332

DO - 10.3390/membranes11050332

M3 - Article

C2 - 33946242

AN - SCOPUS:85105584614

VL - 11

JO - Membranes

JF - Membranes

SN - 2077-0375

IS - 5

M1 - 332

ER -