A kind of heavy oil hydrotreating method
A technology of heavy oil hydrogenation and treatment method, applied in the direction of hydrotreating process, treatment of hydrocarbon oil, petroleum industry, etc., can solve the problem that catalyst activity and stability cannot be taken into account, etc.
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[0062] The preparation process of M2 is basically the same as the preparation process of M1, the difference is that no sulfuric acid aqueous solution is added in the preparation process of the carrier. And after drying the impregnated catalyst, the dried catalyst was heated up to 400° C. at a rate of 300° C. / hour by a conventional method, and kept at 400° C. for 3 hours to prepare catalyst M2.
[0063] S1, S2, S3 preparation process:
[0064] Mix 1 kilogram of pseudo-boehmite dry rubber powder RPB100 produced by Changling Catalyst Factory and 30 grams of scallop powder evenly, add 1.2 liters of sulfuric acid aqueous solution with a concentration of 3.3% by weight, mix evenly, arrange and shape, and dry at 110°C After 2 hours, it was calcined at 800° C. for 3 hours to obtain carrier Z2. Weigh 100 grams of carrier Z2, impregnate it with 110 milliliters of a mixed solution containing molybdenum oxide, basic cobalt carbonate and phosphoric acid for 0.5 hours, and dry it at 120° C...
Embodiment 1
[0077] The residual oil raw material enters the heavy oil hydrotreating unit, and reacts under the reaction conditions of heavy oil hydrotreating. The hydrogenation protection catalyst G1, hydrodemetallization catalyst M1, and hydrodesulfurization catalyst are sequentially loaded in the heavy oil hydrotreating unit along the flow direction. The volume ratio of S2 and CCR3 for hydrotreating carbon removal catalyst is 5:40:25:30. The conditions of heavy oil hydrotreating are shown in Table 3, and the impurity removal rate when running for 200 hours is shown in Table 4. Afterwards, the reaction temperature was adjusted with the carbon residue removal rate of 70%, and when it reached the set value of 405°C, the operation was stopped and the operation was recorded. The time is shown in Table 4.
Embodiment 2
[0079] The residual oil raw material enters the heavy oil hydrotreating unit, and reacts under the reaction conditions of heavy oil hydrotreating. The hydrogenation protection catalyst G1, hydrodemetallization catalyst M1, and hydrodesulfurization catalyst are sequentially loaded in the heavy oil hydrotreating unit along the flow direction. The loading volume ratio of S1 and hydrodecarbonization catalyst CCR2 is 5:40:25:30. The conditions of heavy oil hydrotreating are shown in Table 3, and the impurity removal rate when running for 200 hours is shown in Table 4. Afterwards, the reaction temperature was adjusted with the carbon residue removal rate of 70%, and when it reached the set value of 405°C, the operation was stopped and the operation was recorded. The time is shown in Table 4.
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