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A kind of hydrorefining catalyst and preparation method thereof

A hydrofining and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve problems such as metal loss, reduce production, avoid high-temperature roasting, increase loading capacity and The effect of dispersion

Active Publication Date: 2020-01-03
CHINA NAT OFFSHORE OIL CORP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a highly active hydrorefining catalyst and its preparation method. The method of the present invention solves the problem of metal loss, and at the same time increases the loading and dispersion of boron and active metals on the surface of the carrier, and promotes the Synergistic effect of silicon, boron and active metals

Method used

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  • A kind of hydrorefining catalyst and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0050] Put 100g of calcined silicon-containing alumina powder (wherein, SiO 2 The mass fraction is 3.3%, and the balance is Al 2 o 3 ) into 300ml water (the mass fraction of water in the resulting slurry is 75%), after stirring for 5min, add 18.6g boric acid (in the form of B 2 o 3 The mass meter of boric acid, the addition of boric acid is 4.6% of the hydrorefining catalyst quality of preparation), 4.3ml concentrated phosphoric acid (in P 2 o 5 The mass meter, the add-on of concentrated phosphoric acid is 2.0% of the hydrorefining catalyst quality of preparation), 73g ammonium metatungstate (in terms of WO 3 In terms of mass, the addition of ammonium metatungstate is 28.3% of the prepared hydrorefining catalyst quality) and 37g nickel nitrate (in terms of NiO, the add-on of nickel nitrate is 4.1% of the prepared hydrorefining catalyst quality ), continue to stir for 1h, filter after standing for 2h, and the filtrate is heated to 95ml, with 55gSB powder (addition is 19% o...

Embodiment 2

[0052]Put 100g of calcined silicon-containing alumina powder (wherein, SiO 2 The mass fraction is 3.3%, and the balance is Al 2 o 3 ) into 250ml water (the mass fraction of water in the gained slurry is 71%), after stirring for 5min, add 18.7g boric acid (in the form of B 2 o 3 The mass meter of boric acid, the addition of boric acid is 4.6% of the hydrorefining catalyst quality of preparation), 4.3ml concentrated phosphoric acid (in P 2 o 5 The mass meter, the add-on of concentrated phosphoric acid is 2.0% of the hydrorefining catalyst quality of preparation), 73g ammonium metatungstate (in terms of WO 3 In terms of mass, the addition of ammonium metatungstate is 28.3% of the prepared hydrorefining catalyst quality) and 37g nickel nitrate (in terms of NiO, the add-on of nickel nitrate is 4.1% of the prepared hydrorefining catalyst quality ), continue to stir for 1h, filter after standing for 2h, the filtrate and 55gSB powder (the addition is 19% of the quality of the hyd...

Embodiment 3

[0054] Put 100g of calcined silicon-containing alumina powder (wherein, SiO 2 The mass fraction is 3.3%, and the balance is Al 2 o 3 ) into 255ml water (the mass fraction of water in the gained slurry is 75%), after stirring for 5min, add 18g boric acid (in the form of B 2 o 3 The mass meter of boric acid, the addition of boric acid is 4.5% of the hydrorefining catalyst quality of preparation), 4.3ml concentrated phosphoric acid (in P 2 o 5 The mass meter, the add-on of concentrated phosphoric acid is 2.0% of the hydrorefining catalyst quality of preparation), 64g ammonium metatungstate (in terms of WO 3 In terms of mass, the addition of ammonium metatungstate is 26.4% of the prepared hydrorefining catalyst quality) and 32g nickel nitrate (in terms of NiO, the add-on of nickel nitrate is 3.7% of the prepared hydrorefining catalyst quality ), continue to stir for 1h, filter after standing for 2h, and the filtrate is made with 55gSB powder (the addition is 19% of the qualit...

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Abstract

The invention discloses a hydrofining catalyst and a preparation method thereof. The preparation method comprises the following steps: (1) preparing a slurry of alumina containing silicon, wherein the alumina containing silicon is a complex of SiO2 and Al2O3; (2) adding a boron-containing compound, a phosphorus-containing compound, a VIB family metal compound and a VIII family metal compound into the slurry, and performing filtration to obtain a filter cake and filtrate; and (3) mixing the filtrate with SB powder and a peptizing agent to obtain an adhesive, and performing rolling, forming, drying and roasting on the adhesive and the filter cake to obtain the hydrofining catalyst. According to the preparation method disclosed by the invention, metal salts which can be dissolved in water easily are added into the slurry to ensure uniform contact among aluminum oxide, an auxiliary agent and the metal salts in the slurry, and after the filter cake is subjected to drying and forming, the loading capacity and dispersion degree of metal components are improved, and the synergistic action of the auxiliary agent and metal active components is brought into play to the maximum extent. The catalyst disclosed by the invention is particularly suitable for removing polycyclic aromatic hydrocarbon from naphthenic base distillate oil.

Description

technical field [0001] The invention relates to a hydrorefining catalyst and a preparation method thereof, belonging to the field of petroleum refining. Background technique [0002] Hydrofining is a general term for catalytic upgrading of various oil products under hydrogen pressure. The main reactions include hydrodeoxygenation, aromatics saturation, hydrodesulfurization and hydrodenitrogenation. At present, most of the research on hydrorefining catalysts is the modification of the carrier and the improvement of the metal dispersion of the catalyst. [0003] There are many preparation methods of hydrorefining catalysts in the prior art, but the existing preparation methods all have unavoidable problems. Chinese patent application (CN201010222033.2) discloses a method for preparing a hydrotreating catalyst, which has the problem of metal loss. Chinese patent application (CN201010222164.0) discloses a method for preparing a hydrocracking catalyst. Although this method can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/188C10G45/08
CPCB01J27/188C10G45/08
Inventor 宋君辉杨文中杨琅蔡烈奎韩龙年薛光亭马莉莉焦祖凯张海洪秦一鸣
Owner CHINA NAT OFFSHORE OIL CORP
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