Effects of precipitation parameters on CaCO3 particle size

Yong, Kok Leong Andrew (2005). Effects of precipitation parameters on CaCO3 particle size B.Sc Thesis, School of Engineering, The University of Queensland.

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads
Yong_Kok_Leong_Andrew_THE18824.pdf Full text application/pdf 3.00MB 0
Author Yong, Kok Leong Andrew
Thesis Title Effects of precipitation parameters on CaCO3 particle size
Formatted title

Effects of precipitation parameters on CaCO3 particle size

School, Centre or Institute School of Engineering
Institution The University of Queensland
Publication date 2005
Thesis type B.Sc Thesis
Supervisor Dr Bo Feng
Total pages 90
Language eng
Subjects 290501 Mechanical Engineering
Formatted abstract

The world’s energy demands are increasing, more efficient and environmental friendly methods of energy generation are needed as higher levels of energy generation are coupled with increased levels of pollution. Research has been ongoing to develop newer methods of controlling pollutants such as carbon dioxide (CO2) and carbon monoxide (CO) from being released into the environment. The focus of this project is on carbon dioxide removal from flue gas, with is a by-product of the coal gasification process using carbon dioxide absorbing materials (CAM). The CAM of particular interest in this paper is Calcium Oxide (CaO) otherwise known as lime, which has been singled out for its high performance properties such as high absorption and regeneration rate. This chemical equation of this process is  

CaO + CO2 ⇔CaCO3 + heat

Past studies have shown that the CaO particle’s reaction with CO2 decreases once the product layer of calcium carbonate CaCO3 becomes thick and impervious. This results in the premature termination of carbonation and under utilization of the particle. CaO can be regenerated from CaCO3 by applying high heat for reuse. Previous research has shown that CaCO3 particles can be manufactured with specific morphology and size; hence this study aims to investigate the result of altering certain parameters (e.g. Temperature, additives used, CO2 flow rate) during manufacturing (precipitation method) of CaCO3. This research will benefit future researchers that will try to determine the optimum particle size to achieve the highest rate of reaction with CO2.

Keyword Carbon dioxide removal
Additional Notes * Mechanical engineering undergraduate theses. Sem 1, 2005

Document type: Thesis
Collection: UQ Theses (non-RHD) - UQ staff and students only
Citation counts: Google Scholar Search Google Scholar
Created: Wed, 01 May 2013, 10:37:17 EST by Mr Yun Xiao on behalf of Scholarly Communication and Digitisation Service