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2D model of the transfer processes in S-traps with wash-coated monolith channels and fixed bed for the application of H2S chemisorption in a fuel processor/fuel cell system

: Danilov, Valery A.; Kolb, Gunther


The chemical engineering journal 419 (2021), Art. 129508
ISSN: 1385-8947
ISSN: 0300-9467
ISSN: 0923-0467
ISSN: 0009-2487
ISSN: 1873-3212 (Online)
Journal Article
Fraunhofer IMM ()
Chemisorption; H2S; mass transfer; S-trap; monolith; fixed bed

A two-dimensional model was developed for H2S chemisorption in different S-trap designs, including (i) ZnO coated monolith channels, (ii) ZnO fixed bed, and (iii) a new design. The new design was based on a modification of the monolithic reactor with adsorbent (ZnO) particles for filling the microchannels. The predicted concentration breakthrough curves were consistent with experimental literature data dealing with fixed bed and monolith S-traps.