Performance Evaluation of Aqueous Carbonation by Fluidized Bed Reactor
Date Issued
2009
Date
2009
Author(s)
Chen, Chung-Hua
Abstract
The CO2 sequestration by aqueous carbonation via steel making slag at various operational conditions was investigated in this study. The operational conditions include type of steel making slag, reaction time, reaction temperature, CO2 flow rate and reactor volume. Experiments were conducted at different operational conditions to evaluate their influence on the carbonation conversion.he results indicate that the basic oxygen slag has the highest carbonation conversion around 68% at a reaction time of one hour, operating pressure of 101.3 kPa and temperature at 60 oC. The major factors affecting the carbonation conversion are reaction time and temperature. The reaction kinetic of the carbonation conversion can be expressed by the shrinking core model and the Arrenius Equation.he Life Cycle Assessment software, Umberto 5.5, was used to evaluate the commercial value of this CO2 sequestration technology. It was concluded that aqueous carbonation by fluidized bed reactor is outstanding on cost, energy savings, product stability and storage capacity. The CO2 sequestration by carbonation via basic oxygen furnace slag is an effective alternative in reducing CO2 emission.
Subjects
CO2 sequestration
aqueous carbonation
fluidized bed reactor
Life Cycle Assessment
Type
thesis
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