Water distribution in a sorption enhanced methanation reactor by time resolved neutron imaging

Borgschulte, A.; Delmelle, Renaud; Duarte, Renata Bessa; Heel, Andre; Boillat, P; Lehmann, E

doi:10.1039/c5cp07686b

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Water distribution in a sorption enhanced methanation reactor by time resolved neutron imaging
Authors:	Borgschulte, A. Delmelle, Renaud Duarte, Renata Bessa Heel, Andre Boillat, P Lehmann, E
DOI:	10.1039/c5cp07686b
Published in:	Physical Chemistry Chemical Physics
Volume(Issue):	18
Page(s):	17217
Pages to:	17223
Issue Date:	29-Jun-2016
Publisher / Ed. Institution:	Royal Society of Chemistry
ISSN:	1463-9076 1463-9084
Language:	English
Subject (DDC):	540: Chemistry
Abstract:	Water adsorption enhanced catalysis has been recently shown to greatly increase the conversion yield of CO2 methanation. However, the joint catalysis and adsorption process requires new reactor concepts. We measured the spatial water distribution in a model fixed bed reactor using time resolved neutron imaging. Due to the high neutron attenuation coefficient of hydrogen, the absorbed water in the sorption catalyst gives a high contrast allowing us to follow its formation and map its distribution. At the same time, the product gas was analysed by FTIR-gas analysis. The measurements provided crucial insights into the future design of sorption reactors: during the sorption enhanced reaction, a reaction front runs through the reactor. Once the extension of the reaction front reaches the exhaust, the conversion rate of sorption enhanced methanation decreases. The existence of a reaction front running through the reactor is prerequisite for a high conversion rate. We give a simple model of the experimental results, in particular the conditions, under which a reaction front is established. In particular the latter effect must be taken into account for the dimensions of a large scale reactor.
URI:	https://digitalcollection.zhaw.ch/handle/11475/8937
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Departement:	School of Engineering
Organisational Unit:	Institute of Materials and Process Engineering (IMPE)
Appears in collections:	Publikationen School of Engineering

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Borgschulte, A., Delmelle, R., Duarte, R. B., Heel, A., Boillat, P., & Lehmann, E. (2016). Water distribution in a sorption enhanced methanation reactor by time resolved neutron imaging. Physical Chemistry Chemical Physics, 18, 17217–17223. https://doi.org/10.1039/c5cp07686b

Borgschulte, A. et al. (2016) ‘Water distribution in a sorption enhanced methanation reactor by time resolved neutron imaging’, Physical Chemistry Chemical Physics, 18, pp. 17217–17223. Available at: https://doi.org/10.1039/c5cp07686b.

A. Borgschulte, R. Delmelle, R. B. Duarte, A. Heel, P. Boillat, and E. Lehmann, “Water distribution in a sorption enhanced methanation reactor by time resolved neutron imaging,” Physical Chemistry Chemical Physics, vol. 18, pp. 17217–17223, Jun. 2016, doi: 10.1039/c5cp07686b.

BORGSCHULTE, A., Renaud DELMELLE, Renata Bessa DUARTE, Andre HEEL, P BOILLAT und E LEHMANN, 2016. Water distribution in a sorption enhanced methanation reactor by time resolved neutron imaging. Physical Chemistry Chemical Physics. 29 Juni 2016. Bd. 18, S. 17217–17223. DOI 10.1039/c5cp07686b

Borgschulte, A., Renaud Delmelle, Renata Bessa Duarte, Andre Heel, P Boillat, and E Lehmann. 2016. “Water Distribution in a Sorption Enhanced Methanation Reactor by Time Resolved Neutron Imaging.” Physical Chemistry Chemical Physics 18 (June): 17217–23. https://doi.org/10.1039/c5cp07686b.

Borgschulte, A., et al. “Water Distribution in a Sorption Enhanced Methanation Reactor by Time Resolved Neutron Imaging.” Physical Chemistry Chemical Physics, vol. 18, June 2016, pp. 17217–23, https://doi.org/10.1039/c5cp07686b.