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A kind of highly active hydrogenation refining 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, avoid high-temperature roasting, increase loading capacity and dispersion, and solve The effect of metal loss

Active Publication Date: 2020-01-07
CHINA NAT OFFSHORE OIL CORP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a high-activity 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 boron and active metals, choose phosphorus-containing alumina to avoid the subsequent addition of phosphorus, and reduce the loss of phosphorus

Method used

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  • A kind of highly active hydrogenation refining catalyst and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0050] Put 100g of calcined silicon-containing, phosphorus-containing alumina powder (wherein, SiO 2 The mass fraction is 3.3%, P 2 o 5 The mass fraction is 7%, and the balance is Al 2 o 3 ) into 300ml water (the mass fraction of water in the gained slurry is 75%), after stirring for 5min, add 18.7g boric acid (in the form of B 2 o 3 On a mass basis, the addition of boric acid is 4.6% of the prepared hydrorefining catalyst quality), 73g ammonium metatungstate (in terms of WO 3 In terms of mass, the addition of ammonium metatungstate is 28.4% 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 95m, with 55gSB powder (addition is 19% of the quality of the hydrorefining catalyst prepared) and 4ml concentrated nitric acid (for the quality of silicon-containing and phosph...

Embodiment 2

[0052]Put 100g of calcined silicon-containing, phosphorus-alumina powder (wherein, SiO 2 The mass fraction is 3.3%, P 2 o 5 The mass fraction is 7%, 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 On a mass basis, the addition of boric acid is 4.6% of the prepared hydrorefining catalyst quality), 73g ammonium metatungstate (in terms of WO 3 In terms of mass, the addition of ammonium metatungstate is 28.4% 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 leaving standstill 2h, filtrate and 55gSB powder (add-on is 19% of the hydrorefining catalyst quality of preparation) and 4ml concentrated nitric acid (for silicon-containing, 3.6% of phosphorus-containing alumina powder quality) Made ...

Embodiment 3

[0054] Put 100g of calcined silicon-containing, phosphorus-alumina powder (wherein, SiO 2 The mass fraction is 3.3%, P 2 o 5 The mass fraction is 7%, 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 On a mass basis, the addition of boric acid is 4.6% of the prepared hydrorefining catalyst quality), 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 3.8% of the prepared hydrorefining catalyst quality ), continue to stir for 1h, filter after leaving standstill 2h, filtrate and 55gSB (add-on is 19% of the hydrorefining catalyst quality of preparation) and 3.8ml concentrated nitric acid (for silicon-containing, 3.5% of phosphorus-containing alumina powder quality) Made into a...

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Abstract

The invention discloses a highly active hydrorefining catalyst and a preparation method thereof. The method includes the following steps: (1) using water as a solvent to prepare a slurry of silicon-phosphorus alumina; the silicon-phosphorus alumina is SiO 2 ,P 2 O 5 with Al 2 O 3 The complex; (2) Add boron-containing compounds, Group VIB metal compounds and Group VIII metal compounds to the slurry, and filter to obtain filter cake and filtrate; (3) The filtrate, SB powder and peptizer Mix to obtain a binder, and the binder and the filter cake are sequentially rolled, shaped, dried and roasted to obtain the hydrorefining catalyst. The present invention uses metal salts that are easily soluble in water to be added to the slurry to ensure uniform contact between alumina, additives and metal salts in the slurry. After the filter cake is dried and formed, the loading and dispersion of the metal components are improved. degree, and maximizes the synergistic effect of additives and metal active components. The catalyst of the invention is especially suitable for the removal of condensed ring aromatic hydrocarbons in naphthenic distillate oil.

Description

technical field [0001] The invention relates to a high-activity hydrorefining catalyst and a preparation method thereof, belonging to the field of petroleum refining. Background technique [0002] Hydrofining is a general term for the catalytic upgrading of oil products in a hydrogen environment. 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 thi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/188B01J35/10
CPCB01J27/188B01J35/615B01J35/633
Inventor 宋君辉杨文中韩龙年薛光亭杨琅蔡烈奎马莉莉焦祖凯陈清涛王凯
Owner CHINA NAT OFFSHORE OIL CORP
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