A combined process of hydrotreating and catalytic cracking
A technology of hydroprocessing and combined process, which is applied in the direction of hydroprocessing process, hydrocarbon oil treatment, hydrocarbon oil treatment products, etc. It can solve the problems of low conversion rate of raw materials, low energy consumption, low yield of light oil, etc., and achieve high Yield, the effect of overcoming high hydrogen consumption
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Embodiment 1
[0041] The combined process of hydroprocessing and catalytic cracking described in this embodiment comprises the following steps:
[0042] (1) Put the residual oil into the slurry bed hydrogenation reactor, and hydrogenate the residual oil under the conditions of 450°C, 19MPa, hydrogen-oil ratio 1000, and stay for 1h in the presence of hydrogen and hydrogenation catalyst treatment to obtain hydrogenated oil;
[0043] Wherein, the slurry bed reactor is two empty cylinder reactors connected in series, and its aspect ratio is 10:1;
[0044] Described hydrogenation catalyst is prepared by following method:
[0045] (a) Iron oxyhydroxide desulfurizer is used as the desulfurizer in the petroleum refining process, at a temperature of 400-450°C, a pressure of 6.0MPa, and a gaseous space velocity of 1000-1200h -1 Carry out desulfurization treatment under the conditions of desulfurization, collect the desulfurization waste agent after desulfurization, and mix the desulfurization waste...
Embodiment 2
[0054] The combined process of hydroprocessing and catalytic cracking described in this embodiment comprises the following steps:
[0055] (1) Send the heavy oil into the slurry bed hydrogenation reactor, in the presence of hydrogen and hydrogenation catalyst, and under the conditions of 400°C, 18MPa, hydrogen-to-oil ratio 500, and stay for 1.5h, the heavy oil is hydrogenated Hydrogenation to produce oil through hydrogenation;
[0056] Wherein, the slurry bed reactor is two empty cylinder reactors connected in series, and its aspect ratio is 10:1;
[0057] The added amount of the hydrogenation catalyst is 1wt% of the heavy oil quality in terms of metal components, and the hydrogenation catalyst is prepared by the following method:
[0058] (a) Take the Co-Mo-W series waste catalyst produced by the hydrothermal decomposition process, and mix it with heavy oil at 150°C in a mass ratio of 1:1.5 to form a mixture; wherein, the active The content of the metal component is 30wt%; ...
Embodiment 3
[0066] The combined process of hydroprocessing and catalytic cracking described in this embodiment comprises the following steps:
[0067] (1) Send the high-sulfur oil into the slurry bed hydrogenation reactor, in the presence of hydrogen and hydrogenation catalyst, and under the conditions of 440°C, 22MPa, hydrogen-oil ratio 1250, and stay for 0.5h, the high-sulfur oil Hydrotreating is carried out to obtain hydrogenated oil;
[0068] Wherein, the slurry bed reactor is two empty cylinder reactors connected in series, and its aspect ratio is 10:1;
[0069] The added amount of the hydrogenation catalyst is 3wt% of the high-sulfur oil quality in terms of metal components, and the hydrogenation catalyst is prepared by the following method:
[0070] (a) Take the Ni-Mo series waste catalyst produced by the fixed-bed hydrofining process, and mix it with 120°C coal tar pitch at a mass ratio of 1:3 to form a mixture; wherein, the active metal in the waste catalyst The content of the ...
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Abstract
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