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Process method for preparing marine fuel oil on basis of catalytic cracking oil slurry desolidification-hydrogenation

A technology of catalytic cracking oil slurry and process method, which is applied in the deep processing of petroleum products and the high value-added deep processing and utilization field of catalytic cracking oil slurry, can solve the problems of increasing the cost of marine fuel and reducing the profit margin of marine fuel, and achieves low equipment investment, The effect of low carbon residue and less impurities

Inactive Publication Date: 2019-09-06
CHAMBROAD CHEM IND RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, while the formula is being upgraded, the cost of marine fuel is also increasing, which makes the profit margin of marine fuel continue to decrease

Method used

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  • Process method for preparing marine fuel oil on basis of catalytic cracking oil slurry desolidification-hydrogenation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Mix catalytic cracking oil slurry and petroleum ether at a ratio of 2:1 (mass ratio), and use a laminated centrifuge for centrifugation. The separation factor is 10500, the slagging period is 150min, the slagging time is 0.7s, and the centrifugation temperature is 40°C. Obtain the desolidified mixed oil slurry and discharge the solid residue, the processing capacity is 2t / h.

[0029] The desolidified mixed oil slurry was subjected to flash separation treatment under the conditions of tower top temperature 100°C and tower bottom temperature 170°C to obtain desolidified oil slurry with an ash content of 62ppm and reusable diluent petroleum ether.

[0030] Pass the desolidified oil slurry through a catalyst with nickel oxide and molybdenum oxide as the active component and alumina as the carrier, at a space velocity of 0.25h -1 , catalytic hydrogenation under the conditions of reaction temperature 350°C, reaction pressure 6Mpa, hydrogen oil volume ratio 600:1, to obtain hy...

Embodiment 2

[0033] Mix catalytic cracking oil slurry and toluene at a ratio of 3:1 (mass ratio), and use a laminated centrifuge for centrifugation. The separation factor is 8000, the slagging period is 30 minutes, the slagging time is 0.5s, and the centrifugation temperature is 45°C. Solid mixed oil slurry and discharge solid residue.

[0034] The desolidified mixed oil slurry is subjected to flash treatment under the conditions of tower top temperature 110°C and tower bottom temperature 235°C to obtain desolidified oil slurry with an ash content of 50ppm and reusable diluent catalytic diesel.

[0035] The desolidified oil slurry passes through a catalyst with nickel oxide and molybdenum oxide as the active component and alumina as the carrier, at a space velocity of 0.5h -1 , catalytic hydrogenation under the conditions of reaction temperature 370°C, reaction pressure 8.5Mpa, hydrogen oil volume ratio 630:1, to obtain hydrogenated oil slurry;

[0036] The performance parameters of the p...

Embodiment 3

[0038] Mix catalytic cracking oil slurry and catalytic diesel oil at a ratio of 4:3 (mass ratio), and use a laminated centrifuge for centrifugation. The separation factor is 9800, the slagging period is 60 minutes, the slagging time is 0.4s, and the centrifugation temperature is 60°C. Desolidify the mixed oil slurry and discharge the solid residue.

[0039]The desolidified mixed oil slurry is flashed at the top temperature of 235°C and the bottom temperature of 400°C, and the gas phase of the flashing process is condensed and captured by the condenser, and then refluxed to obtain a desolidified oil with an ash content of 71 ppm slurry and reusable catalytic diesel thinner.

[0040] Pass the desolidified oil slurry through a catalyst with nickel oxide and molybdenum oxide as the active component and alumina as the carrier, at a space velocity of 0.35h -1 , the reaction temperature is 360°C, the reaction pressure is 7Mpa, and the hydrogen-to-oil volume ratio is 638:1. Catalytic...

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Abstract

The invention relates to a process method for preparing marine fuel oil on the basis of catalytic cracking oil slurry desolidification-hydrogenation and belongs to the technical field of petroleum processing. According to the method, a solvent which is mutually soluble with oil slurry is used as a desolidification adjuvant of the catalytic cracking oil slurry to realize low-temperature desolidification, and the oil slurry which is subjected to desolidification and hydrogenation control is used as a fuel oil component to be compounded with a conventional marine fuel component. The process method for preparing the marine fuel oil on the basis of the catalytic cracking oil slurry desolidification-hydrogenation comprises the steps of oil slurry desolidification, hydrogenation and oil preparation, wherein under the condition of 40-60 DEG C, the catalytic cracking oil slurry is mixed with a diluent, separated, subjected to slag removal and then distilled to obtain desolidified oil slurry; under the action of a catalyst adopting nickel oxide and molybdenum oxide as active components and alumina as a carrier, the desolidified oil slurry is catalytically hydrogenated under the conditions that the space velocity is 0.25-0.5 h<-1>, the temperature is 350-370 DEG C, the pressure reaches 6-10 Mpa, and a hydrogen-oil volume ratio reaches (600-650):1. The method has the advantages that fewerimpurities and charcoal residues are generated, the equipment investment and the process cost are low, and the marine fuel cost is significantly reduced while the combustion performance of oil products is maintained; therefore, the process method is particularly suitable for manufacturing and processing high-performance fuel oil.

Description

technical field [0001] The invention belongs to the technical field of petroleum processing, and relates to the deep processing technology of petroleum products, in particular to the high value-added deep processing and utilization technology of catalytic cracking oil slurry. Background technique [0002] Catalytic oil slurry is a by-product produced in the catalytic cracking process of heavy oil. Due to its high density, high relative molecular mass, high viscosity, and more catalyst particles, its utilization is limited. Due to its special properties, catalytic oil slurry is mostly used as a low-value fuel oil blending component to leave the factory. Not only has it not been effectively utilized, but when the oil slurry containing catalyst particles is used as a fuel oil component, it will also cause coking of the furnace tube and burner burners. Abrasion and ash on the surface of the furnace tube lead to a decrease in thermal efficiency and affect the safe and stable oper...

Claims

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Application Information

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IPC IPC(8): C10G67/02C10L1/10C10L10/00
CPCC10G67/02C10L1/10C10L10/00C10L2230/22
Inventor 杨云龙王昌朋董双建尹博郭文娟李国轲
Owner CHAMBROAD CHEM IND RES INST CO LTD
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