Preparation and application method of self-vulcanization oil-soluble catalyst

A technology of self-sulfurizing oil and application method, which is applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of complex preparation process, achieve simple synthesis process, avoid the use of vulcanizing agent and The use of corresponding equipment and the effect of reducing the cost of use

Pending Publication Date: 2021-02-19
青岛翌星环保技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The preparation process is more complex

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  • Preparation and application method of self-vulcanization oil-soluble catalyst
  • Preparation and application method of self-vulcanization oil-soluble catalyst
  • Preparation and application method of self-vulcanization oil-soluble catalyst

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Embodiment 1

[0038]Weigh 30g of molybdenum trioxide, add 200mL of distilled water, then add 60mL of ammonia water (concentration: 17%), stir and heat to 40°C to dissolve. Add 360 mL of ammonium sulfide solution with a sulfur content of 8% to the solution under stirring, raise the temperature to 80° C., and stir for 2 hours to react. The liquid containing crystals was suction-filtered with a Buchner funnel, washed with distilled water, and dried at room temperature for 12 hours to obtain ammonium tetrathiomolybdate. Weigh 15g of ammonium tetrathiomolybdate and add it to dodecamonium, the molar ratio of dodecamonium / molybdenum=2.5 / 1, the reaction temperature is 60°C, and the reaction time is 1 hour to obtain the oil-soluble molybdenum-based catalyst. Precursor, named M-1.

[0039] Weigh 37g of n-butanol, heat up to 80°C, add 20g of sodium hydroxide, keep the reaction temperature at 80°C, and react for 0.5 hours to obtain sodium butoxide; weigh 80g of carbon disulfide, add sodium n-butoxide ...

Embodiment 2

[0042] Weigh 30g of molybdenum trioxide, add 200mL of distilled water, then add 60mL of ammonia water (concentration: 17%), stir and heat to 40°C to dissolve. Add 360 mL of ammonium sulfide solution with a sulfur content of 8% to the solution under stirring, raise the temperature to 80° C., and stir for 2 hours to react. The liquid containing crystals was suction-filtered with a Buchner funnel, washed with distilled water, and dried at room temperature for 12 hours to obtain ammonium tetrathiomolybdate. Weigh 15g of ammonium tetrathiomolybdate and add it to dodecamonium, the molar ratio of dodecamonium / molybdenum=2.5 / 1, the reaction temperature is 60°C, and the reaction time is 1 hour to obtain the oil-soluble molybdenum-based catalyst. Precursor, named M-1.

[0043] Weigh 44g of n-pentyl alcohol, heat up to 80°C, add 20g of sodium hydroxide, keep the reaction temperature at 80°C, and react for 2 hours to obtain sodium n-pentoxide; weigh 80g of carbon disulfide, add sodium n-...

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Abstract

The invention relates to a preparation and application method of a self-vulcanization oil-soluble catalyst, which comprises the following steps: reacting alkyl sodium dithiocarbonate prepared by reacting sodium polyalcohol with carbon disulfide with a nickel source to obtain an oil-soluble nickel-based catalyst precursor, and reacting thiomolybdate with organic amine in one step to obtain an oil-soluble molybdenum-based catalyst precursor. An auxiliary dispersing agent is added to realize rapid mutual dissolution and stable dispersion of oil-soluble nickel-based and molybdenum-based catalyst precursors in inferior heavy oil, and the precursors are self-vulcanized and decomposed in the catalytic reaction process to form auxiliary nickel-modified nanoscale dispersed active metal molybdenum sulfide, so that the catalyst has excellent hydrogenation activity and coking inhibition performance. The catalyst provided by the invention has the characteristics of simple preparation process, no need of vulcanization, small catalyst addition amount, simple application and the like, is suitable for a low-cost slurry reactor hydrocracking process of high-metal, high-carbon-residue and high-viscosity inferior heavy oil, and is also suitable for a slurry reactor hydrogenation pretreatment purification process of waste lubricating oil.

Description

technical field [0001] The invention relates to the technical field of petrochemical industry, more specifically, the invention relates to a preparation and application method of a self-sulfurized oil-soluble catalyst. Background technique [0002] At present, with the decrease of conventional oil resources and the maturity of heavy oil extraction technology, the production of crude oil presents a trend of heavy and inferior quality. Refining and chemical enterprises are faced with the problem of lightening a large amount of domestically produced and imported inferior heavy oil. Slurry bed hydrocracking technology can process low-quality heavy oil raw materials with high metals, high carbon residues, and high sulfur, and has high conversion rate and high yield of light oil, which is an excellent process in line with the development trend of improving resource utilization. At present, foreign companies have carried out research on heavy oil slurry bed hydrocracking technolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/051B01J37/20C10G47/06C10M175/00
CPCB01J27/0515B01J37/20C10G47/06C10M175/0083C10M175/0016C10G2400/10C10G2400/04C10G2400/06
Inventor 刘宾柴永明吕鸿洋刘晨光张明东潘原李奕川柳云骐
Owner 青岛翌星环保技术有限公司
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