A Novel Technology for Desulfurization of FCC Diesel Fuels: Combination of Hydrogenation and Oxidation-assisted Ultrasound

作者：Dai Y^*; Qi Y; Zhao D

来源：Petroleum Science and Technology, 2010, 28(2): 146-154.

DOI：10.1080/10916460903058145

• FCC diesels
• hydrodesulfurization
• integrated desulfurization
• oxidative desulfurization
• ultrasound

This new route that integrates with hydrodesulfurization (HDS) and ultra-sound-assisted oxidation desulfurization (UAODS) technology can be studied to decrease the sulfur content of high sulfuric FCC diesel fuel. In the integrating technology, the conventional HDS unit continues to produce below 500 mu g/g hydrotreated diesel fuels, with UAODS unit used to make sulfur content below 50 mu g/g, or even below 10 mu g/g of diesel fuels. Since it has been discovered that cavitation can be originated from ultrasonic irradiation in water, ultrasound is an increasingly used tool to enhance chemical process rate. The addition of Fenton's reagent can enhance the sono-oxidative desulfurization efficiency for diesel fuels. UAODS has more advantages in removing thiophene and alkyl-thiophenes that are less reactive than other organosulfur species present in these hydrocarbon streams (e.g., alkyl sulfides, mercaptans) using HDS technology. The key to success is that the oxidative desulfurization process must be cost-effective versus the HDS revamp alternative available to refiners.

• 出版日期2010
• 单位辽宁石油化工大学