Print Email Facebook Twitter Crystallization in the post combustion CO2 capture Title Crystallization in the post combustion CO2 capture Author Hartono, D. Contributor Ter Horst, J.H. (mentor) Faculty Mechanical, Maritime and Materials Engineering Department Process and Energy Programme IRS Date 2011-09-06 Abstract Post combustion CO2 capture is the process to capture CO2, typically using solvent through the chemical absorption, from the flue gas stream in a power plant. Previous studies showed that crystallization may occur in the CO2 capture system utilizing high concentration of certain amino acetate. This condition gives the disadvantage because of slurry formation in the absorption system. However, this crystallization offers the opportunity of higher CO2 capturing capacity. In this thesis, an aqueous sodium taurate solution was chosen as the solvent. Experimental works were carried out in order to define the solubility of taurine in aqueous sodium taurate solution at different pH. Data from these experiments are important to define at which conditions crystallization occurs when the solvent captures CO2. Other experiments using Crystalline equipment were done to define the regime/zone (taurate solution concentration and temperature) at which taurine crystallization may occur during CO2 capture. The crystallization process and when it starts can be observed during the experiment. The experiment results show that the higher solution concentration and lower temperature give a better chance for crystallization. A set of thermodynamic models were built based on the experimental data in order to understand the effect of crystallization on the CO2 capture process. These were the models of: solubility of taurine in the NaOH solution; the starting point of crystallization during CO2 capture process; and the end point of CO2 capture at which no more CO2 can be absorbed by the solution. The modeling results show that a higher CO2 loading can be achieved when the crystallization occurs during the CO2 capture. Subject amino acidsodium taurateCO2 capturecrystallization To reference this document use: http://resolver.tudelft.nl/uuid:eea931cd-f299-40bd-9fbd-66ed4980422d Part of collection Student theses Document type master thesis Rights (c) 2011 Hartono, D. Files PDF PE-2422-_Crystallization_ ... artono.pdf 1.81 MB Close viewer /islandora/object/uuid:eea931cd-f299-40bd-9fbd-66ed4980422d/datastream/OBJ/view