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Granular activated carbons for methane adsorption have been prepared by impregnation of oil palm shell with various solutions of ZnCl 2 followed by heat treatment at 500°C under a flow of nitrogen. For this precursor, large micropore volume of micropores (with a very small volume of mesopores and macropores) was obtained with intermediate ZnCl 2 mass ratio. Methane capacity at 800mmHg...
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