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The raw material for the Thermochemical energy storage (TCES) process which has been derived from mining materials is CaCO3. CaCO3 can be obtained from the shell of marine organisms. This paper aims to examine at what temperature the oyster shell can produce CaCO3 which can be used as a raw material for TCES and types of CaCO3 minerals. Samples of oyster shells (Crassostrea Gigas) were sintered at a temperature of 600C, 700C, 800C, for 5 hours using Furnace. The sintering product is then characterized by X-Ray Diffraction (XRD). The results showed an increase in sintering temperature would decompose CaCO3 compounds. Oyster shells that can produce CaCO3 without the presence of other compounds, namely oyster shells calcined at temperatures of 600C. The results of this study concluded that the oyster shell calcined at a temperature of 600C has the potential as a raw material for TCES.

Karakteristik Calcium Carbonat (CaCO3) pada Cangkang Kerang Tiram (Crassosstrea Gigas) sebagai Material Baku Thermochemical Energy Storage (TCES)