RT journal article
T1 Modeling and control strategies for anoxic biotrickling filtration in biogas purification
A1 Almengló Cordero, Fernando
A1 Ramírez Muñoz, Martín
A1 Gómez Montes de Oca, José Manuel
A1 Cantero Moreno, Domingo
A1 Gamisans, Xavier
A1 Dorado, Antonio David
A2 Ingeniería Química y Tecnología de Alimentos
K1 biofiltration of waste gases
K1 biogas
K1 process control
K1 denitrification
K1 modeling
AB BACKGROUNDAnoxic biotrickling filters have been used to 'sweeten' biogas. Nevertheless, the cost and availability of large amounts of nitrate could limit the use of this technology in comparison with aerobic biotrickling filters. The development of a dynamic mathematical model would be useful for the design of control strategies with regard to nitrate dosage.RESULTSA dynamic model has been developed to describe the performance of an anoxic biotrickling filter for biogas desulfurization. The model considers the most relevant phenomena involved in biotrickling filter operation: advection, absorption, diffusion and biodegradation. Moreover, a fraction of the liquid phase is stagnant – an assumption that increases the importance of diffusion phenomena for low liquid flow rates. Once the model had been validated, six control strategies were analyzed for different scenarios and purposes: i.e. to minimize nitrate consumption and/or to maximize H2S removal efficiency.CONCLUSIONThe mathematical model developed from the description of the phenomena involved in the process is a powerful tool to evaluate all possible strategies when considering and quantifying the savings and improvements in different operating modes.
PB Wiley
SN 1097-4660
YR 2015
FD 2015-07-06
LK http://hdl.handle.net/10498/29991
UL http://hdl.handle.net/10498/29991
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 07-nov-2026