TY - JOUR
T1 - Combustion of coal mine ventilation air methane in a regenerative combustor with integrated adsorption
T2 - Reactor design and optimization
AU - Fernández, Javier
AU - Marín, Pablo
AU - Díez, Fernando V.
AU - Ordóñez, Salvador
N1 - Publisher Copyright:
© 2016 Elsevier Ltd. All rights reserved.
PY - 2016/6/5
Y1 - 2016/6/5
N2 - 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).
AB - 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).
KW - Dynamic modelling
KW - Hybrid reactor
KW - Methane combustion
KW - Regenerative catalytic oxidizer
KW - Reverse flow reactor
KW - Water inhibition
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U2 - 10.1016/j.applthermaleng.2016.03.171
DO - 10.1016/j.applthermaleng.2016.03.171
M3 - Article
AN - SCOPUS:84963997576
SN - 1359-4311
VL - 102
SP - 167
EP - 175
JO - Applied Thermal Engineering
JF - Applied Thermal Engineering
ER -