EFFECT OF THE REACTION CONDITIONS ON AL-PILLARED MONTMORILLONITE SUPPORTED COBALT-BASED CATALYSTS FOR FISCHER TROPSCH SYNTHESIS
Fischer-Tropsch (FT) synthesis in fixed bed micro reactor (high pressure reaction cell) was studied over different wt% Co supported Na-montmorillonite (NaMMT) and Al-pillared montmorillonite (AlMMT) catalysts. The synthesized catalysts were characterized by XRD, TPR, NH3-TPD, TGA, BET and SEM techniques. FT reaction was carried out at temperature 225, 260 and 275 C and pressure of 1, 5, and 10 bar. Co supported NaMMT catalysts showed very lower CO-conversion along with increase methane selectivity while AlMMT supported Co catalysts gave higher CO-conversion and lower methane selectivity. With increase in reaction temperature from 225 C to 275 C methane selectivity and CO-conversion increased and the selectivity towards C5+ hydrocarbons decreased. Decrease in methane selectivity while increase in C5+ hydrocarbons and COconversion was observed when the pressure was increased to 5 and 10 bar.