关键词: 芳烃萃取装置, 技术改造, 抽提, 蒸馏

Abstract: An effective capacity expansion program was proposed and put into practice to solve the production bottleneck existed in the 0.15Mt/a aromatics extraction unit of Dalian Petrochemical Company. After revamping the unit throughput reached 20.54 t/h and it was 15% over the design target; the purity of benzene was more than 99.9%; the benzene content in raffinate oil was less than 0.5%; the operation was stable and the co-solvent consumption was reduced significantly.

Key words: Aromatics extraction unit, technical transform, Extraction, distillation