Fabrication of Carbon Di-oxide (CO2) Capturing Materials in Zero Emission Power Generation Systems

Rahman, Ataur (). Fabrication of Carbon Di-oxide (CO2) Capturing Materials in Zero Emission Power Generation Systems B.Sc Thesis, School of Civil Engineering, The University of Queensland.

       
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Author Rahman, Ataur
Thesis Title Fabrication of Carbon Di-oxide (CO2) Capturing Materials in Zero Emission Power Generation Systems
School, Centre or Institute School of Civil Engineering
Institution The University of Queensland
Thesis type B.Sc Thesis
Supervisor Bo Feng
David Williams
Total pages 34
Language eng
Subjects 0905 Civil Engineering
Formatted abstract
The report focuses on the development of carbon based sorbents attaining high adsorption capacity for capturing CO2 which will be used in zero emission power generation systems.

Based on different carbonation temperatures and CO2 partial temperatures, potential calcium oxide (CaO) precursors were deposited on different porous frameworks using various fabrication techniques such as physical mixing, inceptive wetness impregnation and sol-gel methods. The evaluation of the fabricated sorbents for CO2 adsorption could be done employing various methods such as TGA (Thermo Gravimetric Analysis), XRD and SEM tests. However due to the cost involved and time required, only TGA method was sued in this project. The aim of undertaking these tests was to characterise the sorbents before and after multiple carbonation–decarbonation processes. Preliminary tests showed that multiple carbonation–decarbonation cycles with derived CaO from different precursors resulted in a decay of carbonation conversion. The process was observed up to 9 cycles to see whether a significant capture of CO2 achieved throughout the cycles.

The results obtained show that the new absorbent involving a compound sorbent CaO-CaAlO generated from from a chemical reaction of (CaAC2 + Al(NO3)3) has significantly improved CO2 absorption capacity and cyclic reaction stability compared with other Ca-based CO2 absorbents. The results suggest that this new absorbent is promising in the application of calcination/ carbonation reactions through which capture of CO2 can be maximised.
Keyword Fabrication
Co2
zero emission

Document type: Thesis
Collection: UQ Theses (non-RHD) - UQ staff and students only
 
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Created: Tue, 11 Nov 2014, 14:17:53 EST by Ahmed Taha Siddiqui on behalf of Scholarly Communication and Digitisation Service