Effects of experimental variables on conversion of cockle shell to calcium oxide using thermal gravimetric analysis

Mohamed, M. and Rashidi, N.A. and Yusup, S. and Teong, L.K. and Rashid, U. and Ali, R.M. (2012) Effects of experimental variables on conversion of cockle shell to calcium oxide using thermal gravimetric analysis. Journal of Cleaner Production, 37. pp. 394-397. ISSN 09596526

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Abstract

Calcination of CaCO 3 is a process of producing CaO - a widely used substance in high temperature applications. However, the efficiency of the process depends on the variable involved and the assumption made. Therefore, this paper aims to illustrate the effects of few variables on calcination and carbonation reaction of CaCO 3 via thermo-gravimetric analyzer (TGA) in order to optimize the process. In the present work, cockle shells were used as CaCO 3 sources. The experimental variables i.e. particle size, heating rate, calcination and carbonation temperature were employed. A minimum of two runs of experiments for each variable were conducted and the standard deviation for all of the runs are found to be less than 1. Analysis of XRD, XRF and EDX indicates the conversion of CaCO 3 in cockle shells to CaO after calcination. The optimum adsorptive capacity of synthesized CaO for CO 2 at the optimum conditions is 0.72 kg CO 2/kg CaO. © 2012 Elsevier Ltd. All rights reserved.

Item Type: Article
Additional Information: cited By 21
Uncontrolled Keywords: Adsorptive capacity; Cockle shell; DTG curves; Optimum conditions; Standard deviation; TG curves; Thermal gravimetric analysis; Thermogravimetric analyzers; XRD, Calcination; Calcium carbonate; Carbon dioxide; Lime; Shellfish; Thermogravimetric analysis, Shells (structures), Animalia
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 09 Nov 2023 15:50
Last Modified: 09 Nov 2023 15:50
URI: https://khub.utp.edu.my/scholars/id/eprint/2675

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