Preparation of suitable catalysts has been concerned in production of biodiesel from oil with high FFA as west cooking oil. In this study, the catalytic activity of prepared Al-promoted and pure sulfated zirconia by solvent-free method...

Solvent-free technique was employed in this work in order to assess the influence of the calcination temperature on the activity of Al-promoted sulfated zirconia. The catalyst was analyzed by XRD and IR-spectrum method, and catalytic activity...

In this work, the optimal percentage of alumina loading on sulfated zirconia by solvent-free method was investigated and its reusability was assessed. To obtain these objectives, sulfated zirconia was supported with different molar percentage...

Preparation of suitable catalysts was concerned in production of biodiesel from oils with high FFA as west cooking oil. In this study, the effect of loading strontium oxide over sulfated zirconia in catalytic activity was investigated...

of the catalysts. The results of this study reveal that the calcined strontium oxide promoted sulfated zirconia at 500 oC has the highest percentage of tetragonal phases of zirconia. It has also been demonstrated that owing to the high percentage of the tetragonal...