Abstract: One 20kt/a straight-run gasoline aromatization unit in GuangXi TianDong General Petrochemical Works adopting a patent technology that developed by Luo Yang Petrochemical Engineering Company has produced high octane gasoline and Liquefied Petroleum Gas (LPG). The evaluation data has indicated that the LAC catalyst has higher activity and stability, the octane number (RON) of gasoline produced by straight-run gasoline aromatization is higher than 90 and it is a suitable blending stock to 90^# lead-free gasoline. The production yield (gasoline +LPG) is up to 93.29%.The running state has shown that the unit is reliable. After the improvement of the operating project and process lines, leaking of the valve of the reactor is solved effectively, and the consumption of nitrogen is reduced from 95040m³/a to 500m³/a, only 0.5% of the initial consumption. The regenerated time for the catalyzer is reduced from 6 days to 3 days. The consumption of the electricity for the catalyzer regenerating is 1.75×10⁵(kw·h)/a, it is 50% of the initial consumption. Running expenses have saved 1.02×10⁶yuan/a

Key words: gasoline stock, aromatization, technological application, improvement