Oil-soluble self-vulcanizing molybdenum catalyst, and preparation method, use method and application of oil-soluble self-vulcanizing molybdenum catalyst

A molybdenum sulfide, oil-soluble technology, used in physical/chemical process catalysts, chemical instruments and methods, organic compound/hydride/coordination complex catalysts, etc. The dispersion process is complex and cannot be guaranteed to be converted into sulfided metals, etc., to achieve the effect of improving overall economic benefits, maintaining long-term operation, and not reducing catalytic activity

Inactive Publication Date: 2013-10-16
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, catalysts used for heavy oil slurry bed hydrocracking mainly include water-soluble catalysts and oil-soluble catalysts. Due to the complex dispersion process of water-soluble catalysts, high energy consumption, and difficulty in industrial application, it is necessary to develop new types of highly active oils. Soluble catalysts are important for the further promotion of heavy oil slurry bed hydrocracking technology
[0004] However, according to relevant literature and patent reports, during the use of the existing heavy oil slurry bed hydrocracking oil-soluble molybdenum catalyst, it is necessary to add a suitable sulfurizing agent to convert the molybdenum in the catalyst into molyb

Method used

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  • Oil-soluble self-vulcanizing molybdenum catalyst, and preparation method, use method and application of oil-soluble self-vulcanizing molybdenum catalyst
  • Oil-soluble self-vulcanizing molybdenum catalyst, and preparation method, use method and application of oil-soluble self-vulcanizing molybdenum catalyst
  • Oil-soluble self-vulcanizing molybdenum catalyst, and preparation method, use method and application of oil-soluble self-vulcanizing molybdenum catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 0.05mol MoO under nitrogen protection 3 Add the powder to 100ml water, add 0.05mol 15% Na 2 S solution, then add 0.5mol toluene, acidify with 0.01mol35% sulfuric acid, cool to 25℃, react for 10min; then add 0.05mol di-n-butylamine and 0.05mol carbon disulfide at room temperature, stir for 30min, heat up to 85℃ After the reaction is completed for 4 hours, the product is cooled, filtered with suction, washed with methanol, and dried to obtain a yellow solid of oil-soluble molybdenum sulfide catalyst with a yield of 66%.

Embodiment 2

[0030] Under the protection of nitrogen, add 0.05mol NaMoO 4 ·2H 2 Add O powder to 100ml water, add 0.05mol 15% Na 2 S solution, then add 0.63mol methanol, acidify with 0.01mol35% sulfuric acid, cool to 15℃, react for 150min; then add 0.06mol di-n-butylamine and 0.06mol carbon disulfide at room temperature, stir for 30min, heat up to 90℃ After reacting for 3 hours, after the reaction, the product was cooled, filtered with suction, washed with methanol, and dried to obtain a yellow solid of oil-soluble molybdenum sulfide catalyst with a yield of 75%.

Embodiment 3

[0032] Under the protection of nitrogen, add 0.05mol MoO 3 Add the powder to 100ml water, add 0.05mol 15% Na 2 S solution, then add 0.7 mol methanol, acidify with 0.01 mol 35% sulfuric acid, cool to 10°C, and react for 60 minutes; then add 0.1 mol di-n-butylamine and 0.15 mol carbon disulfide at room temperature, stir for 30 minutes, heat up to 95°C After reacting for 5 hours, after the reaction, the product was cooled, filtered with suction, washed with methanol, and dried to obtain a yellow solid of oil-soluble molybdenum sulfide catalyst with a yield of 80%.

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Abstract

The invention provides an oil-soluble self-vulcanizing molybdenum catalyst, and a preparation method, a use method and an application of the oil-soluble self-vulcanizing molybdenum catalyst. The preparation method comprises the following steps of (1) sequentially putting a molybdenum source, water, sodium sulfide, a solvent and inorganic acid in a container under the protection of nitrogen, uniformly mixing and stirring, cooling to 5-50 DEG C for reaction for 10-150min, (2) adding alkylamine and carbon disulfide, uniformly stirring, heating to 60-200 DEG C for reaction for 3-10h, and (3) after reaction, sufficiently cooling a product, performing suction filtration, sufficiently washing with methanol, and drying to obtain the oil-soluble self-vulcanizing molybdenum catalyst. The oil-soluble self-vulcanizing molybdenum catalyst can be vulcanized and decomposed to form a molybdenum disulfide active component in situ, is used for a slurry reactor hydrocracking technology for poor heavy oil with a high metal content, a high carbon residue content and a high sulfur content, can reduce the coke yield, and keeps long-period operation of a device.

Description

Technical field [0001] The invention relates to a catalyst for the lightening process of heavy oil in a petroleum processing technology, in particular to an oil-soluble self-sulfurized molybdenum catalyst suitable for inferior heavy oil, its preparation method, use method and application. Background technique [0002] The slurry-bed hydrocracking of heavy oil is a thermal cracking process for heavy oil under high temperature and high hydrogen pressure. A small amount of catalyst is fully in contact with the raw material residue and hydrogen in the reactor, showing a fully backmixed state. The main function of the catalyst is to inhibit the coke formation of the residue during the cracking process, so as to achieve high conversion rate and low coke generation hydrogenation process. With the increasing proportion of domestic and imported inferior heavy oils in my country, how to deal with these inferior heavy oils with high metals (nickel, vanadium, calcium, etc.), high residual c...

Claims

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Application Information

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IPC IPC(8): B01J31/02C10G47/02
Inventor 李传邓文安夏志同沐宝泉
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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