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Coal load molybdenum-based catalyst for coal-oil suspended bed hydrogenation co-refining

A molybdenum-based catalyst and oil suspension technology, which is applied in the field of coal liquefaction, can solve the problems of harsh reaction conditions and complex preparation processes, and achieve the effects of mild conditions, simple synthesis processes, and easy-to-obtain and cheap raw materials

Active Publication Date: 2017-05-31
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a coal-loaded molybdenum-based catalyst for coal-oil suspension bed hydrogenation co-refining, which solves the problems of complex preparation process and harsh reaction conditions of the existing coal-loaded molybdenum-based catalyst

Method used

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  • Coal load molybdenum-based catalyst for coal-oil suspended bed hydrogenation co-refining

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The pulverized coal used in this embodiment is lignite, and the oil used is Marui atmospheric residual oil.

[0025] Under nitrogen protection, add 0.3680g ammonium molybdate to 330ml water, add 1.1040gNa 2 S, 0.01g sodium dodecylbenzenesulfonate, then add 100g lignite, and add 0.3g ethylene glycol at room temperature, after stirring for 30min, add a certain amount of hydrochloric acid to adjust the pH value to 5. Under the condition of stirring, the temperature of the above solution was raised to 80°C, and reacted for 2 hours. After the reaction, the product was cooled and left to stand for 24 hours, and then the product was dried in an oven at 110°C for 3 hours to obtain molybdenum-based coal powder. The obtained coal powder loaded with molybdenum base and Marui residual oil are subjected to suspension bed hydrogenation co-refining. The reaction conditions are: the mass ratio of oil to coal is 3:1, the reaction temperature is 400°C, the reaction pressure is 12MPa, an...

Embodiment 2

[0029] Under nitrogen protection, put 0.15g sodium molybdate into 500ml water, add 1.05g hydrogen sulfide, 0.01g cetyltrimethylammonium bromide, then add 100g lignite, and add 0.12g ethylene glycol at room temperature After stirring for 30 min, a certain amount of hydrochloric acid was added to adjust the pH value to 1. Under the condition of stirring, the above solution was heated to 60°C and reacted for 4 hours. After the reaction, the product was cooled and left to stand for 12 hours, and then the product was dried in an oven at 110°C for 3 hours to obtain molybdenum-based coal powder. The obtained coal powder loaded with molybdenum base and Marui residual oil are subjected to suspension bed hydrogenation co-refining. The reaction conditions are: the mass ratio of oil to coal is 3:1, the reaction temperature is 400°C, the reaction pressure is 12MPa, and the reaction time is 1h. The results are shown in Table 3

Embodiment 3

[0031] Under nitrogen protection, add 0.60g ammonium molybdate to 300ml water, add 0.60g carbon disulfide, 0.1g octylphenol polyoxyethylene ether, then add 100g lignite, and add 0.48g ethylene glycol at room temperature, after stirring for 30min , adding a certain amount of sulfuric acid to adjust the pH value to 6. Under the condition of stirring, the temperature of the above solution was raised to 100°C, and reacted for 1 hour. After the reaction, the product was cooled and left to stand for 24 hours, and then the product was dried in an oven at 110°C for 3 hours to obtain molybdenum-based coal powder. The obtained coal powder loaded with molybdenum base and Marui residual oil are subjected to suspension bed hydrogenation co-refining. The reaction conditions are: the mass ratio of oil to coal is 3:1, the reaction temperature is 400°C, the reaction pressure is 12MPa, and the reaction time is 1h. The results are shown in Table 3

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Abstract

The invention discloses a coal load molybdenum-based catalyst for coal-oil suspended bed hydrogenation co-refining, and belongs to the technical field of coal liquefaction. The coal load molybdenum-based catalyst uses a molybdenum source and sulfides as major raw materials, and is prepared by a preparation method that under the nitrogen gas protection, coal powder, the molybdenum source, the sulfides, ethylene glycol and a surfactant are put into a container; deionized water being 3 to 5 times of the weight of the coal powder is added; acid is added for regulating the pH to the acidic state; mixing and uniform stirring are performed; heating is performed to 60 to 100 DEG C; reaction is performed for 1 to 4h; after full reaction, still standing is performed for 12 to 24h at room temperature; reaction products are dried in a drying box for 3h at 110 DEG C. The coal load molybdenum-based catalyst related by the invention has the advantages that no vulcanizing agents are added into a reactor; molybdenum disulfide catalytic activity ingredients are formed through in-situ decomposition; a dispersion process of the catalyst in the existing coal-oil suspended bed hydrogenation co-refining process is greatly simplified; the operation efficiency of the coal-oil suspended bed hydrogenation co-refining is improved.

Description

technical field [0001] The invention relates to the technical field of coal liquefaction, in particular to a coal-loaded molybdenum-based catalyst used for coal-oil suspension bed hydrogenation co-smelting. Background technique [0002] With the heavy and inferior quality of crude oil and the increasing demand for light products year by year, the processing of heavy oil, especially low-quality residual oil with high carbon residue, high sulfur and nitrogen, and high metal has become the development trend of refineries. And my country is rich in coal resources, the proven reserves are second only to the United States and Russia. The direct combustion of a large amount of coal has brought an increasingly heavy burden to environmental protection. Coal-oil suspension bed hydrogenation co-refining technology can take advantage of the synergistic effect between pulverized coal and heavy and residual oil to liquefy coal into liquid fuel while lightening heavy oil, especially the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/051C10G1/06C10G47/12C10G47/26
CPCB01J27/051C10G1/06C10G47/12C10G47/26C10G2300/70
Inventor 邓文安秦勇李传杨腾飞杜峰孟环爽李庶峰
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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