Diesel oil ultra-deep desulfurization device and diesel oil hydrogenation reaction system
A technology of hydrogenation reaction and deep desulfurization, which is applied in the petroleum industry, processing hydrocarbon oil, hydrocarbon oil treatment products, etc., can solve the problems of difficulty in realizing deep desulfurization or ultra-deep desulfurization of diesel oil, frequent regeneration, and short service life of adsorbents. Achieve the effect of accelerating the hydrogenation reaction rate and reaction efficiency, increasing the driving force for mass transfer, and avoiding insufficient hydrogen
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Embodiment 1
[0051] Attached figure 1 The method, wherein the amount of hydrogen in the hydrogenation reactor is 0.405% of the mass of the raw material oil (the sum of fresh raw material oil and circulating oil), and the reaction conditions of the fixed bed hydrogenation reactor are as follows: the reaction temperature is 310-355 ℃, the reaction pressure is 6.0MPaG, and the liquid hourly volume space velocity is 4.5h -1 . The sulfur content in the feedstock oil after fixed-bed hydroupgrading was 576 μg / g.
[0052] The feedstock oil after fixed-bed hydrotreating enters the deep hydrodesulfurization unit, which includes three “U-shaped” tubular reactors connected in series, in which the membrane tube micro-disperser disperses hydrogen into 50nm hydrogen bubbles, nano The amount of hydrogen injected per micron is 0.128% of the mass of the raw oil ("U-shaped" tubular reactor feed); the reaction conditions in the hydrogenation reaction section are as follows: the reaction temperature is 310-3...
Embodiment 2
[0055] Attached figure 1 The method, wherein the amount of hydrogen in the hydrogenation reactor is 0.389% of the mass of the raw material oil (the sum of fresh raw material oil and circulating oil), and the reaction conditions of the fixed bed hydrogenation reactor are as follows: the reaction temperature is 320-360 ℃, the reaction pressure is 6.0MPaG, and the liquid hourly volume space velocity is 5.0h -1 . The sulfur content in the feedstock oil after fixed-bed hydroupgrading was 355 μg / g.
[0056] The feedstock oil after fixed-bed hydrotreating enters the deep hydrodesulfurization unit, which includes five “U-shaped” tubular reactors connected in series in sequence, in which the membrane tube microdisperser disperses hydrogen into 500nm hydrogen bubbles, and the nano The amount of hydrogen injected per micron is 0.152% of the mass of raw oil ("U-shaped" tubular reactor feed); the reaction conditions in the hydrogenation reaction section are as follows: the reaction tempe...
Embodiment 3
[0059] Attached figure 1 The method, wherein the amount of hydrogen in the hydrogenation reactor is 0.402% of the mass of the raw material oil (the sum of fresh raw material oil and circulating oil), and the reaction conditions of the fixed bed hydrogenation reactor are as follows: the reaction temperature is 320-360 ℃, the reaction pressure is 6.0MPaG, and the liquid hourly volume space velocity is 5.0h -1 . The sulfur content in the feedstock oil after fixed-bed hydroupgrading was 47 μg / g.
[0060] The feedstock oil after fixed-bed hydrotreating enters the deep hydrodesulfurization device, which includes seven "U-shaped" tubular reactors connected in series, in which the membrane tube microdisperser disperses hydrogen into 50nm hydrogen bubbles, and the nano The amount of hydrogen injected per micron is 0.164% of the mass of the feedstock oil (feed to the "U-shaped" tubular reactor); the reaction conditions in the hydrogenation reaction section are as follows: the reaction...
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