关键词: 汽油, 催化精馏烷基化脱硫, 辛烷值, 国V标准汽油, 国VI标准汽油

Abstract: The combination technology of catalytic distillation-sulfur transfer and hydrodesulfurization developed by PetroChina was commercially tested in Urumqi Petrochemical Company, and the test calibration was completed under the working conditions of two kinds of raw materials. The results showed that when a full-range FCC gasoline was used as feed, the sulfur concentration was 10.1 μg/g and 9.0 μg/g in the sulfur transferred light gasoline and the desulfurized heavy gasoline fraction, respectively; the sulfur content of blended full distillate gasoline was 9.5 μg/g with RON 88.7. When the etherified desulfurized heavy gasoline was employed as the raw fuel, the sulfur concentration was 11.1μg/g in the etherified light gasoline, 12.9 μg/g in the medium gasoline fraction and 11.4 μg/g in the desulfurized heavy gasoline; the sulfur content of blended full distillate gasoline was 11.7 μg/g with RON 90.2. By the catalytic distillation sulfur transfer technology for FCC gasoline, the cut temperature for separating light and heavy gasoline could be increased to 100-120 ℃. After the sulfur transfer, the sulfur content of the light gasoline is in line with the China V and Ⅵ standard gasoline blending components.

Key words: gasoline, catalytic distillation alkylation desulfurization, octane number, China V standard gasoline, China VI standard gasoline