固体碱对油品中有机硫化物的脱除性能及分析

预碱洗（电精制）是轻质油品精制中的重要环节，通过氢氧化钠水溶液预碱洗可除去油品中的硫化氢、低分子硫醇等酸性物质，但大量含硫废碱液的排放给环保造成很大压力。以固体碱代替液体碱预碱洗，是减少甚至消除废碱液产生和排放的最有效措施。近十几年来，许多学者致力于固体碱对轻质油品中硫醇、硫化氢的脱除研究。

Activity and analysis for removal of organic sulfur compounds from oil by solid base

The previous research proves that removal activity for H2S by solid base is high. The removal activity for organic sulfur compounds by solid base was studied. The results show that the solid base has a certain extent removal activity for these compounds. Mercaptans are removed easily. The stronger acidity and polarity of mercaptan, the more easily it is removed. Thiophenes are most difficult to be removed due to their weak polarity and large space obstruction. The order of removal efficiency of these compounds is approximately as follows: mercaptan＞carbonyl sulfide＞sulfide＞disulfide＞thiophenes.