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Preparation method of hydro-treatment catalyst

A technology for hydrotreating and catalyst, which is applied in the directions of physical/chemical process catalysts, catalyst carriers, chemical instruments and methods, etc., to achieve good pore expansion effect, large pore diameter, and the effect of improving the activity of hydrogenation reaction

Active Publication Date: 2014-05-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process of the method is simple and easy

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0041] 1L sodium metaaluminate aqueous solution (A1 2 o 3 Concentration is 25g / 100ml ) and 2L aluminum sulfate aqueous solution (A1 2 o 3 The concentration is 3g / 100ml) into the container at the high position respectively, and the flow meter flows into the tank with 200mL of clean water (which contains 6 grams of gemini surfactant: N,N'-dimethylcarboxybetaine) In the stainless steel reactor of the reactor and the heating jacket, the aqueous solution of sodium metaaluminate and the aqueous solution of aluminum sulfate flow into the reactor in parallel to carry out the gelation reaction. The system temperature is 80°C and the pH value is controlled at 9.0. The reaction was stopped after 45 minutes. Aged for 1.5 hours at a temperature of 80°C and a pH of 9.0. Filter and wash. Dry at 140°C for 3 hours, then add peptizer, knead into a plastic body, extrude into a four-leaf clover with a circumscribed circle diameter of Φ1.1~1.3, then dry at 140°C for 3 hours, and keep the tem...

Embodiment 2

[0044] 1L sodium metaaluminate aqueous solution (A1 2 o 3 concentration of 20g / 100ml) and 1.5L of aluminum sulfate in water (A1 2 o 3 The concentration is 5g / 100ml ) into the container at the high position, and the flowmeter connected to the bottom flows into 200mL clean water (which contains 5 grams of gemini surfactant: 1,3-didodecyl-N,N-di Ammonium bromide-2-propanol) in a stainless steel reactor with a stirrer and a heating jacket, an aqueous solution of sodium metaaluminate and an aqueous solution of aluminum sulfate flow into the reactor in parallel for gelation reaction, the system temperature is 85°C, pH The value is controlled at 9.5. The reaction was stopped after 45 minutes. Aged for 2.0 hours at a temperature of 85°C and a pH of 9.0. Filter and wash. Dry at 130°C for 4 hours, then add peptizer, knead into a plastic body, extrude into a four-leaf clover with a circumscribed circle diameter of Φ1.1~1.3, then dry at 130°C for 4 hours, and keep the temperature...

Embodiment 3

[0047] 1.5L sodium metaaluminate aqueous solution (A1 2 o 3 Concentration is 20g / 100ml), 2.0L aluminum sulfate aqueous solution (A1 2 o 3 The concentration is 5g / 100ml) and 200mL of clean water (which contains 4 grams of acetylenic diol gemini surfactant Cido-420), which are respectively placed in a high-position container, and the flowmeter connected to the bottom flows into a stainless steel reactor with a stirrer and a heating jacket. In the reactor, sodium metaaluminate aqueous solution, aluminum sulfate aqueous solution and gemini surfactant solution flow into the reactor in parallel for gelation reaction. The system temperature is 75°C and the pH value is controlled at 10.0. The reaction was stopped after 45 minutes. Aged for 2.0 hours at a temperature of 75°C and a pH of 10.0. Filter and wash. Dry at 120°C for 5 hours, then add peptizer, knead it into a plastic body, extrude it into a four-leaf clover with a circumscribed circle diameter of Φ1.1~1.3, then dry at 12...

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Abstract

The invention discloses a preparation method of a hydro-treatment catalyst. The preparation method comprises the following steps: using an gemini surfactant acidic aluminum salt solution and an alkaline aluminate solution to carry out a glue-forming process through a parallel flow method, adding a gemini surfactant before the glue-forming process or during the glue-forming process, making the obtained alumina dry glue into an alumina carrier, and loading an active metal component on the alumina carrier through an impregnation method so as to obtain the hydro-treatment catalyst. The gemini surfactant has the same advantages as those of negative ion surfactants and positive ion surfactants, thus the gemini surfactant is used to replace the negative ion surfactants and positive ion surfactants so as not to bring in new impurity ions; furthermore, the gemini surfactant has a large molecular weight and thus has a good pore-enlarging effect; and finally a hydro-treatment catalyst, which has the advantages of large pore diameter, large pore volume, and high strength, is obtained. The hydro-treatment catalyst is especially suitable for residual oil hydro-treatment.

Description

technical field [0001] The invention relates to a method for preparing a hydrogenation catalyst, in particular to a method for preparing a hydrogenation catalyst for heavy and residual oil, especially a method for preparing a hydrogenation demetallization or hydrogenation protecting agent. Background technique [0002] With the increasingly heavy and inferior crude oil and the increasing market demand for light oil products, environmental protection regulations are becoming increasingly stringent, and the technology of residuum lightening has become one of the important issues in the world's petroleum processing industry today. Since residual oil contains a large amount of colloids and asphaltenes and other macromolecular compounds, it is required that the residual oil hydrogenation catalyst must have larger pores to ensure that these macromolecular compounds enter the catalyst to participate in the reaction. The preparation of large-diameter residual oil hydrogenation catal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/883B01J32/00B01J21/04B01J35/10C10G45/08
Inventor 张艳侠付秋红高鹏段日袁胜华包洪洲隋宝宽
Owner CHINA PETROLEUM & CHEM CORP
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