Improvement of the quality of gasoline and enhancing its octane number
Dr. Nada Saadoun
ABSTRACT
This study focuses on the improvement of the quality of gasoline and enhancing its octane number by the reduction of part of n-paraffins using zeolite 5A. Results show an increase of 5.5 units in RON of light naphtha from Al-Dora Refinery using 40g zeolite at 40oC and after 120oC min. also an increase in 7 units was obtained in the continuous mode after 30 min using flow rate of 0.3l/hr and bed height of 10cm. the results were obtained after many trials and series of experiments to study the effect of different parameters on the reduction of n-heptane and n- hexane and finally on the overall removal of n-paraffin present in light naphtha. Those parameters were Temperature (30 and 40oC), mixing time up to 120 min for different amounts of zeolite ranging ( 10-60g) in a batch mode and feed flow rate (0.3-0.8l/hr)m bed height (10-20cm) studied in continuous mode. Concentrations of each type of n-paraffin were studies using gas chromatography(GC).