Mohd Kheireddine Aroua

Bio: Mohd Kheireddine Aroua is an academic researcher from University of Malaya. The author has contributed to research in topics: Activated carbon & Adsorption. The author has an hindex of 6, co-authored 7 publications receiving 1042 citations.

CO2/CH4 and O2/N2 kinetic selectivities of oil palm shell-based carbon molecular sieves.

Abstract: Carbon molecular sieves (CMS) have become an interesting area of adsorption due to their microporous nature and favourable separation factor on size and shape selectivity basis for many gaseous systems. In this work, CMS were prepared from locally available oil palm shell by thermal treatment of carbonization followed by steam activation, then benzene deposition. The carbonization of dried palm shell at 900 degrees C for 1 hr followed by steam activation at 30-420 min produced activated carbons with various degrees of burn-off. The highest micropore surface area and micropore volume of the activated samples were obtained at 53.2 burn-off. This sample was found suitable to be used as precursor for CMSs production in the deposition step. Subsequent benzene deposition onto activated samples at temperatures from 600 degrees C-900 degrees C for various benzene concentrations resulted in a series of CMS with different O(2)/N(2) and CO(2)/CH(4) kinetic selectivities.

Agricultural bio-waste materials as potential sustainable precursors used for activated carbon production: A review

Abstract: A review on the preparation of the activated carbon from agricultural waste material is presented. The physical properties such as proximate and ultimate analysis of agricultural waste material were reviewed. The chemical compositions such as cellulose, hemicelluloses and lignin contents were also discussed. The effects of various parameters on the preparation such as carbonization and activation temperature, time, types of activating agents and impregnation ratio were reviewed. Various physical and chemical processes for the activation of the agricultural residues and their effects on the textural properties such as surface area and pore volume were discussed. The low cost, renewable and relatively less expensive of the agricultural waste were found to be efficiently being converted into wealth. The uses of activated carbon derived from agricultural residues in many fields were evidently proven in the review. The reaction kinetic modeling on the pyrolysis and activation of agricultural wastes were also reviewed.