CO2 Absorption in a Lab-Scale Fixed Solid Bed Reactor: Modelling and Experimental Tests

Authors : Franco Donatini, Michele Landi, Massimo Schiavetti, Juri Riccardi, Roberto Gabbrielli

Pages : 123-130

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Publication Date : 2004-09-01

Article Type : Research Paper

Abstract :The CO2 absorption in a lab-scale fixed solid bed reactor filled with different solid sorbents has been studied under different operative conditions regarding temperature insert ignore into journalissuearticles values(20-200°C); and input gas composition insert ignore into journalissuearticles values(N2, O2, CO2, H2O); at 1bar pressure. The gas leaving the reactor has been analysed to measure the CO2 and O2 concentrations and, consequently, to evaluate the overall CO2 removal efficiency. In order to study the influence of solid sorbent type insert ignore into journalissuearticles values(i.e. CaO, coal bottom ash, limestone and blast furnace slag); and of mass and heat transfer processes on CO2 removal efficiency, a one-dimensional time dependent mathematical model of the reactor, which may be considered a Plug Flow Reactor, has been developed. The quality of the model has been confirmed using the experimental results.
Keywords : CO2 absorption, solid sorbents, mathematical modelling, fixed solid bed reactor