Combination method for processing heavy oil raw material
A technology for combining methods and raw materials, which is applied in the fields of hydrotreating process, chemical instruments and methods, processing of hydrocarbon oil, etc., can solve the problems of low yield of light oil and high yield of coke, reduce production cost and optimize oil preparation. Improved contact and atomization effects
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Embodiment 1
[0045] The raw material used in this embodiment is stock oil A, and its properties are shown in Table 1. The raw material oil A was subjected to a hydrogen-facing mild thermal conversion reaction in a hydrogen-facing thermal conversion reactor. The reaction temperature was 410°C, the reaction time was 1 h, the pressure (gauge pressure) was 5 MPa, and the hydrogen-oil ratio was 1000. The reaction results are shown in Table 2. Show. It can be seen from Table 2 that the properties of the raw material oil A have been greatly improved after hydrogenation and thermal conversion, and the kinematic viscosity at 100°C has changed from 936mm 2 / s reduced to 375mm 2 / s, the average relative molecular mass decreased from 681 to 492. That is to say, the viscosity and average molecular weight of heavy raw oil are significantly improved after hydrogenation and thermal conversion.
Embodiment 2
[0047] In this embodiment, raw material oil A is used as raw material, and its properties are shown in Table 1. The raw material oil A undergoes a hydrogenation mild thermal conversion reaction in a hydrogenation thermal conversion reactor, the reaction temperature is 410°C, the reaction time is 1h, the pressure (gauge pressure) is 5MPa, and the hydrogen-oil ratio is 1000. The liquid phase stream after thermal conversion is introduced into the fluidized bed contact cracking reactor, and is contacted and reacted with the semi-synthetic silicon-alumina contact agent produced by spray drying technology. The reaction temperature is 500°C, the agent-oil ratio is 7, and the water-oil ratio is 0.2, and the space velocity is 4h -1 . The microreactivity of the semi-synthetic silicon-aluminum contact agent is 16.7 (measured according to standard ASTM D3907-87), the particle size range is 45-150 μm, and the average particle size is 94 μm. Table 3 shows the product distribution obtained...
Embodiment 3
[0052] In this embodiment, raw material oil B is used as raw material, and its properties are shown in Table 1. The raw material oil B is subjected to hydrogen-facing mild thermal conversion reaction in the hydrogen-facing thermal conversion reactor, the reaction temperature is 405°C, the reaction time is 1h, the pressure (gauge pressure) is 6MPa, and the hydrogen-oil ratio is 1000; the stream after thermal conversion Send it into the fluidized bed contact cracking reactor, contact and react with the semi-synthetic silicon-alumina contact agent produced by spray drying technology. The reaction temperature is 500°C, the agent-oil ratio is 7, the water-oil ratio is 0.25, and the weight hourly space velocity is 8h -1 , the microreaction activity of the semi-synthetic silicon-aluminum contact agent is 16.7 (measured according to standard ASTM D3907-87), the particle size range is 45-150 μm, and the average particle size is 94 μm. The product distribution is shown in Table 4. It ...
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