A PROCESS FOR PRODUCING ACTIVATED CARBON FIBRES

摘要

The present invention relates to a process for producing activated carbon fibres (ACF) from empty fruit brunch (EFB) fibres. The process includes the steps of: (i) washing EFB fibres with nitric acid (HNO3) and followed by washing of the EFB fibres with deionized (DI) water and drying of the EFB fibres. This step is essential for removal of any adsorbed inorganic materials; (ii) mixing the EFB fibres obtained from step (i) with sulphuric acid (H2S44); (iii) subjecting the EFB fibres obtained from step (ii) to a carbonization process; (iv) heating chars obtained from step (iii) in nitrogen gas environment up to temperature between 600 to 1200 °C and holding chars obtained from step (iv) at a temperature between 600 to 1200°C in carbon dioxide gas (CO2) environment for a period between 1 to 24 hours and followed by cooling step in nitrogen gas environment.