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

Ludmilla Bobrova, Nikita Eremeev, Nadezhda Vernikovskaya, Vladislav Sadykov, Oleg Smorygo

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Article number332
JournalMembranes
Volume11
Issue number5
DOIs
Publication statusPublished - 30 Apr 2021

Keywords

  • Asymmetric supported membrane
  • Ethanol steam reforming
  • Membrane reactor modeling

OECD FOS+WOS

  • 2.04 CHEMICAL ENGINEERING
  • 2.05.PM MATERIALS SCIENCE, MULTIDISCIPLINARY
  • 1.04.UY POLYMER SCIENCE

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