DefinePK

Abstract

In this study five different catalysts xLa/MgyCo-7Ni /MSU-S are synthesized through sol-gel procedure and further tested for XRD, HRTEM, FT-IR, H2-TPR, CO2-TPD, and O2-TPO skills. The mass transfer resistant effect, stability and activity of the catalytic samples were observed for syn gas and H2gas synthesis at different reaction temperatures and various space velocities (GHSV) at atmospheric pressure. Space velocities of 2.4- 3.2 × 104 mL/g-1h-1 were used for the determination of mass transfer resistant effect, catalytic  performance and composition of the catalyst at different reaction temperatures (700-800 oC) retaining constant atmospheric pressure during CO2/CH4 dry reforming reaction. The reaction outcomes showed that nanoparticles of nickel are highly discreted upon the promotion of Mg, La & Co oxides over MSU-S (mesoporous zeolite) through firmly contact of metal ions with HO-Si-groups of zeolite. Oxides of La (La2O3) in 1-3LayCozNi/MSU-S, which showed greater catalytic activity than 1-3Mg supported such catalysts. Among all five catalysts the N-/MSU-S doped with 3%La and 2%Co confirmed the best active catalyst in all respects with stability up to 75 h at of 750 oC. The catalyst also showed less mass transfer resistant effect at (GHSV) of 24000 mL/g-1h-1 than 32000 mL/g-1h-1