The aromatics extraction principles and process outlines, the features of sulfolane and the measures on protection of sulfolane from oxidization and degradation were discussed in this paper.

• 摘要叙述了芳烃抽提原理及工艺概况、环丁砜溶剂的特点、环丁砜氧化降解给芳烃生产带来的危害，提出了环丁砜的保护措施。