文章介绍了SKI系列C₈芳烃异构化催化剂研究工作的进展。阐述了催化剂研制开发的创新思路以及该催化剂的优异性能。该催化剂采用丝光沸石固体酸取代常规的卤素酸，因此操作过程中既可省去补氯和碱洗等繁杂过程，又可避免设备腐蚀并改善了操作环境，是一种环境友好的催化剂。该催化剂可使贫对二甲苯或贫对、邻二甲苯的混合C₈芳烃异构为接近热力学平衡的C₈芳烃，C₈芳烃的选择性大于97%，使用寿命可达5年以上。并介绍了该催化剂在引进的七套C₈芳烃异构化工业装置上取代了进口催化剂，将该科技成果转化为现实的生产力所取得的成绩。

The innovative idea and excellent performance of the SKI series catalysts for isomerization of C₈ aromatics are elaborated. With the zeolite solid acid instead of halogen, not only the complicated chlorine supplement and the alkaline washing in the operation are eliminated but also the equipment corrosion is prevented and the operation environment is improved. As a result, the catalyst is environmental - friendly. The thermodynamic equilibrium can be approached for the isomerization of the mixed C₈ aromatics with poor para - xylene by the SKI Series catalysts. The selectivity for the C₈ aromatics is more than 97% and the catalyst life-span is more than 5 years. The achievement of the realistic productivity derived from the scientific and technological research was made through the substitution of the imported catalysts with the SKI series catalyst in the 7 imported commercial units