Abstract:

Selective hydrodesulfurization catalysts and octane recovery catalysts for hydro-upgrading of FCC gasoline were prepared. And the hydro-upgrading process of FCC gasoline was investigated in a 300 mL adiabatic reactor using the full range FCC gasoline or heavy cut as feed materials. The products cannot completely meet the FCC gasoline hydro-upgrading requirements by single octane recovery process or octane recovery-selective hydrodesulfurization combination process. However，single selective hydrodesulfurization process or selective hydrodesulfurization-octane recovery combination process can meet hydro-upgrading requirements for both the full range FCC gasoline and heavy cut. The modified products with lower sulfur or clean gasoline of National Ⅳ standard can be obtained by hydro-upgrading of FCC gasoline heavy cut.

摘要：

研究开发出了适于FCC汽油加氢改质的选择性加氢脱硫催化剂和辛烷值恢复催化剂，并在300 mL绝热装置上，分别以全馏分FCC汽油或切割后的重馏分FCC汽油为原料，进行了FCC汽油加氢改质工艺的系统研究，结果表明：单独采用辛烷值恢复工艺或辛烷值恢复-选择性加氢脱硫组合工艺不能完全满足FCC汽油加氢改质的要求；而单独采用选择性加氢脱硫工艺或选择性加氢脱硫-辛烷值恢复组合工艺可以满足全馏分FCC汽油或切割后重馏分FCC汽油加氢改质的要求。将全馏分FCC汽油切割后进行加氢改质可以得到硫含量更低的改质产品或直接生产符合国Ⅳ标准的清洁汽油。