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Self-sulfurized oil-soluble nimo catalyst and its preparation method and application

A self-sulfurizing oil and catalyst technology, applied in the direction of catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems such as complex preparation process, achieve simple preparation process, improve hydrogenation activity, and increase the amount of addition little effect

Active Publication Date: 2019-10-29
青岛翌星环保技术有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN201410208927.4 discloses a method for preparing a sulfur-containing organic molybdenum precursor. The sulfur-containing organic matter generated by the reaction of polycarbonate alcohol and phosphorus pentasulfide is reacted with a neutral aqueous solution of molybdenum in the presence of an acidic cation exchange resin to prepare sulfur-containing oil. Soluble catalyst, but its preparation process is more complicated

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  • Self-sulfurized oil-soluble nimo catalyst and its preparation method and application

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Embodiment 1

[0021] Embodiment 1 proposes a kind of self-sulfiding oil-soluble NiMo catalyst, and its preparation method comprises the steps:

[0022] Weigh 30g of molybdenum trioxide, add 200ml of distilled water, then add 60ml of concentrated ammonia water, 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, heat up to 80° C., and react with stirring for 2 hours. 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.

[0023] Weigh 5g ammonium tetrathiomolybdate and join in dodecanoic acid, dodecanoic acid / molybdenum molar ratio=2.5 / 1, reaction temperature is 60 ℃, and reaction time is 1 hour, obtains the oil-soluble molybdenum-based catalyst Precursor, named M-1.

[0024] Weigh 5g of nickel nitrate, add 20ml of distilled water, and stir to dissolve. Add dodecane ammonium to...

Embodiment 2

[0027] Embodiment 2 proposes a kind of self-sulfiding oil-soluble NiMo catalyst, and its preparation method comprises the steps:

[0028] Weigh 30g of molybdenum trioxide, add 200ml of distilled water, then add 60ml of concentrated ammonia water, stir and heat to 40°C to dissolve. Add 250 ml of ammonium polysulfide solution with a sulfur content of 20% to the solution with stirring, heat up to 80° C., and react with stirring for 2 hours. The crystal-containing liquid was suction-filtered with a Buchner funnel, washed with distilled water, and dried at room temperature for 12 hours to obtain ammonium dodecathiomolybdate.

[0029] Weigh 5g ammonium dodecanothiomolybdate and add it to dodecanoic acid, the molar ratio of dodecanoic acid / molybdenum=4 / 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-2.

[0030] Weigh 5g of nickel nitrate, add 20ml of distilled water, and stir to dissolve. A...

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Abstract

The invention relates to a self-sulfiding oil-soluble NiMo catalyst and its preparation method and application. The method includes the following steps: reacting a sulfur-containing molybdenum source with an organic acid to obtain a molybdenum-based precursor; reacting a nickel salt with an organic amine to obtain a nickel-based precursor. Precursor; Dissolve the molybdenum-based precursor and the nickel-based precursor in a dispersant to obtain a self-sulfurized oil-soluble NiMo catalyst; wherein the mass percentage of molybdenum is 1% to 20%, and the mass of nickel The percentage content is 1% to 20%. The preparation method of the self-sulfiding oil-soluble NiMo catalyst of the present invention can significantly improve the hydrogenation activity while effectively suppressing coke generation, and has the advantages of simple preparation process, no need for sulfurization, small amount of catalyst added, and easy application, and is particularly suitable for high-temperature applications. Low-cost slurry bed hydrocracking process for metals, high carbon residue, and high-sulfur inferior heavy oil.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry, and in particular relates to a self-vulcanizing oil-soluble NiMo catalyst and its preparation method and application. 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. At the same time, we must take into account the requirements of environmental protection indicators, control the quality of gasoline and diesel, and meet the needs of producing clean fuels. 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 excelle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/051B01J37/20B01J37/03B01J37/04C10G47/26
CPCC10G47/26B01J27/0515B01J37/031B01J37/04B01J37/20B01J35/23
Inventor 刘宾赵柯迪柴永明刘晨光皮鹤鸣梁缘柳云骐
Owner 青岛翌星环保技术有限公司
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