Hydroprocessing catalyst and preparing method thereof

A hydrogenation treatment and catalyst technology, applied in refining to remove heteroatoms, etc., can solve the problem of affecting the metal distribution and dispersion degree on the surface of the catalyst, not suitable for heavy distillate oil hydrotreating reaction, limiting the utilization rate of silica, etc. problems, to achieve the effects of inhibiting the formation of excessive inactive substances, controlling product properties, and excellent stability

Inactive Publication Date: 2004-04-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The loading method of silicon is to add sodium silicate (water glass) in the process of preparing pseudo-boehmite, and then remove sodium ions by washing, and the loading of phosphorus is by adding phosphoric acid or phosphoric acid to the silicon-containing aluminum hydroxide gel. ammonium salt and/or loaded nickel, molybdenum and phosphorus by the impregnation method, because the silicon source (water glass) system colloidal substance introduced into the system is in an inhomogeneous state when in contact with alumina, making silicon oxide on the surface of alumina The uneven distribution of silica limits the utilization rate of silica, thereby weakening the effec

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Take respectively 180g and 230g of macroporous aluminum hydroxide powder produced by Fushun Petrochemical Company Catalyst Factory with aluminum trichloride and ammonia water as raw materials and hydrated SB alumina powder produced in Germany, add to a premixer and mix evenly, and premix for 15 minutes; add The peptizing agent 340g (wherein silicon dioxide content is 7m%) that the analysis pure nanometer silicon dioxide that Tianjin Chemical Co., Ltd. produces is made, kneading 25 minutes becomes plastic body; °C for 6 hours, and then calcined at 500 °C for 4 hours to obtain carrier B3.

Embodiment 2

[0031] In Example 1, the amount of peptizer containing silicon dioxide was changed from 340g to 240g, and an additional 110g of aqueous solution containing 2.8m% nitric acid was added, that is, in this example, carrier B4 was obtained.

Embodiment 3

[0033] In Example 1, the amount of peptizer containing silicon dioxide was changed from 340g to 100g, and an additional 240g containing 2.8% nitric acid aqueous solution was added, namely the present example, to obtain carrier B5.

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PUM

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Abstract

The present invention discloses a hydrogenation treatment catalyst and its preparation method. It is applicable to hydrogenation treatment of heavy oil, specially hydrogenation treatment of heavy fraction. Said catalyst is prepared by loading molybdenum, nickel and phosphorus on silicon-contained aluminium oxide carrier prepared by adopting a special method, and said silicon-contained aluminium oxide carrier is prepared by adding nano silicon-containing compound, for example nano silicon dioxide. As compared with existent catalyst it has higher activity for hydrodesulfurization and hydro-denitrification.

Description

1. Technical field [0001] The invention relates to a petroleum hydrocarbon hydrogenation treatment catalyst and a preparation method thereof, in particular to a heavy hydrocarbon hydrogenation treatment catalyst and a preparation method thereof. 2. Background technology [0002] In recent years, in order to meet the requirements of protecting the environment, many heavy distillate oil hydrotreating catalysts with high desulfurization, denitrogenation and polycyclic aromatic hydrocarbon hydrogenation activities have been reported. Catalysts containing alumina or alumina-silica is one of them. US4,568,449 and US4,446,248 patents introduce a supported hydrogenation catalyst with nickel, molybdenum, and phosphorus as active components. It is transformed into γ-alumina, and nickel, molybdenum and phosphorus are loaded by the impregnation method, and then dried and calcined at 450-600 ° C to obtain a catalyst in the metal oxidation state. Compared with the conventional nickel-mo...

Claims

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Application Information

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IPC IPC(8): C10G45/04
Inventor 魏登凌彭绍忠
Owner CHINA PETROLEUM & CHEM CORP
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