The “Hydrocracking Tail Oil Used as a Lubricating Oil Hydrogenation Feedstock†project of the Gaoqiao Petrochemical Refinery Department has achieved success recently, increasing the added value of hydrocracking tail gas.
In order to broaden the sources of raw materials for lubricating oil hydrotreaters and avoid the competition with ketobenzene, solvent refining, and white clay refining devices for paraffin-base materials, and to increase the added value of hydrocracking tail oil, the Refining Department established a task force to carry out “hydrocracking tailsâ€. "Use of oil as a raw material for hydrogenation of lubricating oil". Members of the research group tracked the operating conditions in the production of hydrogenated lubricating oil base oils from different raw materials, examined the impact of different raw materials on the product quality of lubricating oil hydrogenation units, and found that they reduced by second line, by three lines, by four lines, by five. The hydrocracking tail oil produced from the raw materials mixed in different proportions has the advantages of high saturated hydrocarbon content, low content of aromatics, gums, sulfur and nitrogen, and wide distillation range distribution. The members of the research group mixed No. 3 distillation minus four, minus three, and hydrocracked tail oil in a ratio of 1:1.5. As raw materials, they successfully produced qualified II+ and III hydrogenated base oils. The added value of the hydrocracking tail oil also improves the adaptability of the lubricating oil hydrogenation device to the raw materials.
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