As caustic solution prewashing of FCC gasoline discharges lots of lye, it is nec essary to improve the process. 用苛性碱液对汽油进行预碱洗时易产生大量废碱液,为彻底消除废液提出了用固体碱预处理代替苛性碱液预碱洗的方法。
The liquid-phase propane amine desulfurization and gas-phase propane caustic washing desulfurization are discussed in detail. 重点讨论了液相丙烷醇胺脱硫法和气相丙烷碱洗脱硫法两种工艺防腐蚀措施。