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Combustion of coal mine ventilation air methane in a regenerative combustor with integrated adsorption: Reactor design and optimization

Fernández, J; Marín, P; Díez, FV; Ordóñez, S; (2016) Combustion of coal mine ventilation air methane in a regenerative combustor with integrated adsorption: Reactor design and optimization. Applied Thermal Engineering , 102 pp. 167-175. 10.1016/j.applthermaleng.2016.03.171. Green open access

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Abstract

Coal mine ventilation air methane is an important environmental concern due to its contribution to global warming. Catalytic combustion in reverse flow reactors is an efficient treatment technique, but high emission moistures lead to catalyst inhibition. To overcome this issue a novel reverse flow reactor with integrated water adsorption has been proposed. In this work, the design of a reverse flow reactor adequate to treat a typical real coal ventilation stream, 45 m3/s with 0.30% (mol) methane and 5% (mol) water, has been studied. The performance of the reactor design has been simulated using a 1D heterogeneous dynamic model, previously validated with experimental results. Particular attention has been paid to reactor stability when water and methane feed concentration change upon time. Real coal mine ventilation air data have been used to produce realistic simulations. The optimization of the operating conditions (surface velocity and switching time) has been carried out based on the total cost of the reactor (considering fixed capital and 10-year variable cost).

Type: Article
Title: Combustion of coal mine ventilation air methane in a regenerative combustor with integrated adsorption: Reactor design and optimization
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.applthermaleng.2016.03.171
Publisher version: https://doi.org/10.1016/j.applthermaleng.2016.03.1...
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/10113189
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