中文摘要：

纤维膜萃取分离器是一种新型的高效传质设备。本文分别采用两种不同形式的液体分布器,以苯甲酸水溶液-煤油为传质体系,在一直径70mm、高2630mm的有机玻璃纤维液膜萃取分离器冷态实验装置上,考察了纤维丝填充密度1.89%～5.08%,水-油或油-水体积流量比3～6的操作区间内,纤维膜分离器内的两相传质性能。结果表明,对于不同的分布器形式、不同的进料顺序、不同的两相流量比,纤维丝最佳填充密度均在3%～3.5%之间。＂先油后水＂所对应的最佳纤维丝填充密度略低于＂先水后油＂的情况。根据冷态实验的结果以及最大Reynolds数设计准则,建立了一套0.01Mt.a-1的催化汽油脱硫醇工业侧线装置,并进行了工业侧线实验。结果表明,与传统设备比较,采用纤维膜萃取分离器的脱硫醇效果更为理想,脱硫效率至少增加了1个百分点。

英文摘要：

Fiber film extractor is novel high-efficiency equipment for two-fluid mass-transfer.In this paper,the kerosene-benzoic-acid-water was used as the experimental mass-transfer system.Under two different liquid distributor,varying the packed density of fibers from 1.89% to 5.08% and the flow ratio from 3 to 6,the performance of the fiber-film extractor was investigated on a cold model that made of 70 mm-ID,2630mm-height plexiglass pipe.The experimental results show that the optimal packed density of fibers is 3%—3.5% under different liquid distributors,feeding sequences as well as flow ratios.The optimal packed density corresponding to ＂feeding kerosene first＂ is somewhat less than that to ＂feeding aqueous benzoic acid first＂.Based on the cold model experimental results as well as the maximum Reynolds number,a fiber-film extractor for caustic treating a 0.01 Mt·a-1 stream of RFCC gasoline was investigated.The industrial side-stream experimental results indicate that the efficiency of the fiber-film extractor for demercaptan is distinctly higher than that of the traditional apparatuses.