Preparation of Carbon Molecular Sieve for removal of green house gas from industrial waste

摘要

Activated carbon and CMS samples were prepared from coal samples of different origin and coconut char. The effects of the various process parameters to prepare CMS from various coals were studied. Pre-oxidation of the coal, activation using CO_2 and pore narrowing through coke deposition by benzene cracking were the major process parameters used to prepare the CMS in this work. The CO_2 adsorption capacity of the samples was studied using a volumetric method. The adsorption capacity of CO_2 on the CMS samples prepared was found to be 1.6 mmol/g of the adsorbent with an uptake ratio at equilibrium adsorption for CO_2/CH_4, 20. The morphology of the pore structure of the samples was studied using the Scanning Electron Microscope (SEM). The N_2 adsorption on the samples at liquid N_2 temperature was found to be very poor and hence surface area measurement was done using CO_2 adsorption data.