Residual oil hydrotreating method
A treatment method and residue hydrogenation technology are applied in the fields of heavy residue oil hydrotreating and residue oil hydrotreating. The effect of improving reaction performance and improving economic efficiency
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[0019] Example 1
[0020] like figure 1 Shown: on the basis of the feed of the crude residue fixed bed hydrogenation unit, the catalytic diesel oil with a mass fraction of 3% is blended to obtain feed 1, which is mixed with fresh hydrogen 2 and then enters the fixed bed hydrogenation reactors 3 and 4, followed by Hydrogenation protection agent, hydrodemetallization catalyst, hydrodesulfurization catalyst, hydrodenitrogenation catalyst and hydrogenation decarbonization catalyst are used; the reaction temperature is 400°C, the hydrogen pressure is 15MPa, and the reaction space velocity is 1.2. After the obtained product enters the hot high fraction 6, the remaining hydrogen is re-mixed with fresh hydrogen 2 by the circulating hydrogen compressor 5 and then enters the reaction system, and the remaining products enter the fractionating tower 8 via the hot low fraction 7 to obtain gasoline 9, kerosene 10, diesel 11 fractions and add Hydrogen tail oil 12, the hydrogenated tail oil ...
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[0021] Example 2
[0022] like figure 1 Shown: On the basis of the feed of the crude residue fixed bed hydrotreating unit, 2% mass fraction of catalytic diesel and 2% mass fraction of pyrolysis diesel are blended to obtain feed 1, which is mixed with fresh hydrogen 2 and then enters the fixed bed Hydrogen reactors 3 and 4 pass through hydrogenation protection agent, hydrodemetallization catalyst, hydrodesulfurization catalyst, hydrodenitrogenation catalyst and hydrodecarbon residue catalyst in sequence; the reaction temperature is 380°C, the hydrogen pressure is 16MPa, and the reaction space velocity is is 0.8. After the obtained product enters the hot high fraction 6, the remaining hydrogen is re-mixed with fresh hydrogen 2 by the circulating hydrogen compressor 5 and then enters the reaction system, and the remaining products enter the fractionating tower 8 via the hot low fraction 7 to obtain gasoline 9, kerosene 10, diesel 11 fractions and add Hydrogen tail oil 12, the h...
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