Optimización del Proceso de Separación de Gases por Membranas
determinación del número óptimo de etapas de membrana y condiciones de operación para la captura de co 2 a partir de gases efluentes de plantas de generación de electricidad a base de carbón.
Keywords:
Optimal synthesis and design, membrane-based separation, coal fired power plants, CO2 capture, simultaneous optimization, GAMSAbstract
This work deals with the optimal design of membrane-based separation processes for CO2 capture from coal fired power plant flue gasses. Different alternative configurations are simultaneously embedded in a superstructure from which a mathematical model is derived with the main aim to determine the optimal configuration of the separation process, the membrane area and the power consumption in each stage, and the corresponding operating conditions.
Precisely, the total membrane area is proposed for minimization, assuming as main design targets, 85 % CO2 recovery and 98 % of purity on the CO2-rich stream. The mentioned problem will be solved for two flow types: counter-current and co-current. The optimal solutions obtained for each flow type will be analyzed and compared in terms of membrane area distribution, flows, compositions and the individual contribution of each compressor to the total power consumption.
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