Inferior residual oil suspension bed hydrogenation conversion method
A hydrogenation conversion and suspension bed technology, applied in the chemical industry, can solve the problems that affect the application of the technology and the start-up period, low desulfurization and demetallization, coking in the reactor, etc., and achieve the goal of improving the conversion rate of residual oil, reducing coking, and improving the conversion rate Effect
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[0045] Example 1. Suspended bed hydroconversion of vacuum residue
[0046] Using CNOOC Huizhou Refining Vacuum Residue as the raw material (the properties of the raw materials are shown in Table 1), the vacuum residue is subjected to suspended bed hydroconversion according to the following steps:
[0047] Table 1. Raw material property data
[0048]
[0049] Use raw material pump according to 0.5h -1 The volumetric space velocity of the residual oil feedstock containing 300ppm catalyst and hydrogen is mixed according to the volume ratio of 1:1000, and then enters the preheating furnace. The preheating furnace is heated to 180℃ and enters the radial-axial secondary distributor. After efficient distribution Into the air-lift loop reactor, in the air-lift loop reactor, the catalyst-containing residual oil raw material and the hydrogen gas rise in the axial rotation of the reactor, and the inferior residual oil undergoes chemical reaction in the reactor. The reactor pressure is 12Mpa and...
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[0051] Example 2. Suspended bed hydroconversion of vacuum residue
[0052] Using CNOOC Huizhou Refining Vacuum Residue as the raw material (the properties of the raw materials are shown in Table 1), the vacuum residue is subjected to suspended bed hydroconversion according to the following steps:
[0053] Use raw material pump according to 1.0h -1 The volumetric space velocity of the catalyst raw materials containing 300ppm and hydrogen are mixed according to the volume ratio of 1:1000, and then enter the preheating furnace. After the preheating furnace is heated to 180℃, it enters the radial-axial secondary distributor, and enters the gas lift after efficient distribution. In an air-lift loop reactor, the residual oil feedstock containing the catalyst and the hydrogen gas rise axially in the reactor, and the inferior residual oil undergoes a chemical reaction in the reactor. The reactor pressure is 14Mpa and the temperature is 440℃. Gas and hydrogen come out from the top of the re...
Example Embodiment
[0055] Example 3 Suspended bed hydroconversion of vacuum residue
[0056] Using CNOOC Huizhou Refining Vacuum Residue as the raw material (the properties of the raw materials are shown in Table 1), the vacuum residue is subjected to suspended bed hydroconversion according to the following steps:
[0057] Use raw material pump according to 0.5h -1 The volumetric space velocity of the residual oil raw material containing 300ppm catalyst and hydrogen is mixed according to 1:1000 and then enters the preheating furnace, heated to 180℃ by the preheating furnace, enters the radial and axial secondary distributor, and enters the gas lift after efficient distribution In an air-lift loop reactor, the catalyst-containing residual oil feedstock and hydrogen are axially rotated in the reactor. The inferior residual oil undergoes a chemical reaction in the reactor. The reactor pressure is 16Mpa and the temperature is 460℃. Gas and hydrogen come out from the top of the reactor, and the liquid pro...
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