Deep processing method for shale oil
A technology for deep processing of shale oil, which is applied in the petroleum industry, hydrotreating process, and hydrocarbon oil treatment, etc. It can solve the problems of complex shale oil deep processing process, low yield of light oil products, and insufficient processing depth, etc. , to achieve the effect of expanding feed material sources and operating rate, flexible product solutions, and improving utilization efficiency
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[0074] The full-distillation shale oil 1-1 from the tank farm enters the raw material pretreatment unit 1 for raw material pretreatment; the pre-treated full-distillation shale oil enters the vacuum distillation unit 2 to separate light vacuum distillate 2-1, The heavy vacuum distillate 2-2 and the vacuum residue 2-3; the light vacuum distillate 2-1 enters the hydrorefining unit 3 to undergo catalytic hydrogenation reaction with hydrogen 3-1 and catalyst in the hydrogenation reactor, The generated hydrogenated oil enters the product fractionation unit 5; the heavy vacuum distillate 2-2 and the vacuum residue 2-3 are mixed with the hydrogenation tail oil 5-3 separated from the product fractionation unit 5 and then enter the delayed coking reaction unit 4 Carry out cracking and condensation reactions, the generated coking distillate oil 4-1 enters the hydrorefining reaction unit 3 for refining, and the generated coking heavy wax oil 4-2 and coke 4-3 exit the device; separated in t...
specific Embodiment approach 2
[0119] Specific embodiment two: This embodiment is different from the specific embodiment one in that the vacuum distillation column described in step two has a specification of φ6200×35000mm (cut) and is equipped with 4 sections of structured packing. Others are the same as the first embodiment.
specific Embodiment approach 3
[0120] Specific embodiment three: This embodiment is different from specific embodiment one or two in that the minus first line diesel extraction temperature in step two is 365~375℃, minus second line wax oil extraction temperature is 445~455℃, minus third line The extraction temperature of wax oil is 490~510℃. Others are the same as the first or second embodiment.
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