FCC汽油脱硫技术的研究进展

随着环保法规的日益严格,对汽油的质量要求越来越高,降低汽油硫含量是改善空气质量的有效手段.脱硫技术已经成为各炼油企业的关键技术.汽油中的硫化合物主要来自FCC(流体催化裂化)汽油,因此FCC汽油脱硫技术的研究与开发具有重要意义.目前,减少FCC汽油硫含量的技术主要有:催化裂化脱硫;催化加氢脱硫;生物脱硫;溶剂萃取脱硫;光、等离子体脱硫;氧化脱硫和吸附脱硫等.笔者综述了国内外FCC汽油脱硫技术进展.

Advances in FCC gasoline desulfurization technologies

With the gradually strictly of the environmental disciplines,the requirement for the quality of gasoline is getting higher.The method of reducing gasoline sulfur is considered to be an effective means for improving air quality.The desulfurization technology has become a key technology in various oil refinery enterprises.Sulfur compounds in gasoline come mainly from FCC(Fluid Catalytic Cracking),researching and developing of FCC gasoline desulfurization technology is very important.At present,technologies of reducing sulfur content of FCC gasoline including catalytic cracking desulfurization,FCC gasoline hydrodesulfurization,biodesulfurization,solvent extraction desulfurization,plasm and photochemical desulfurization,adsorption desulfurization and oxidative desulfurization.FCC gasoline desulfurization technologies at home and abroad were reviewed in this paper.