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Preparation method of catalyst for hydro-treatment

A hydrogenation treatment and catalyst technology, applied in the direction of physical/chemical process catalysts, catalyst carriers, chemical instruments and methods, etc., can solve problems such as environmental pollution, low sodium content, large amounts of waste water, etc., and achieve no environmental pollution, acidity improvement, The effect of concentrated hole distribution

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

Since sodium silicate is selected as the silicon source, it is necessary to ensure that the product has a low sodium content, and a large amount of waste water will be generated during the washing process, which will pollute the environment.

Method used

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  • Preparation method of catalyst for hydro-treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Fully mix 200g of kaolin raw soil with 40mL of 3.0mol / L acetic acid, 20mL of 0.5mol / L citric acid and 16g of polyethylene glycol dissolved in 40mL of water, and carry out modification treatment on a hydrothermal treatment device. The hydrothermal treatment temperature is 650°C. 5h, hydrothermal treatment pressure 0.27MPa. The processed kaolin is cooled and pulverized through a 160-mesh sieve and collected for use.

[0038] Preparation of sodium metaaluminate solution concentration is 50gAl 2 o 3 / L, a total of 1L, heated to 70°C for use, the concentration of aluminum sulfate solution is 20gAl 2 o 3 / L for a total of 2L, heated to 75°C for use.

[0039] Add 1.0L of distilled water and 45g of the above-mentioned modified kaolin into the gelling tank, and heat to 75°C. Take by weighing 45g of the above-mentioned modified kaolin and put it in the aluminum sulfate solution, and add aluminum sulfate and sodium metaaluminate solution to keep the pH value at 7.5, and the s...

Embodiment 2

[0045] The preparation method of the carrier and the catalyst is the same as in Example 1, and the carrier B and the catalyst T-B are prepared.

[0046] Example 3

Embodiment 3

[0048] Weigh 100g of the prepared silicon-containing alumina dry glue (73wt% silicon-containing alumina), add 1.46g of turnip powder and mix evenly, add 4.06g of acetic acid diluted with 95g of distilled water to the mixed raw materials, knead and extrude into strips, Then it was dried at 110°C for 4h and calcined at 800°C for 3h to obtain carrier C.

[0049] Weigh 20.78g of phosphoric acid, add 400mL of distilled water, then sequentially add 45.14g of molybdenum oxide and 14.44g of basic nickel carbonate, heat and stir until completely dissolved, then adjust the solution to 500mL with distilled water to obtain solution L-2. Saturatedly impregnate the above-mentioned carrier with the L-2 solution, dry at 120°C for 2 hours, and calcinate at 480°C for 5 hours to obtain catalyst T-C.

[0050] Example 4

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Abstract

The invention discloses a preparation method of a catalyst for hydro-treatment. The preparation method comprises the following steps: mixing original clay with a weak acid and a dispersant, then carrying out a hydrothermal treatment, grinding, sieving so as to obtain modified clay with a particle size larger than 160 meshes; processing the modified clay, grinding, sieving, adding part of the modified clay into an acidic solution containing aluminum, adding part of the modified clay into a glue-forming substrate, then using the acidic solution containing aluminum and an alkaline solution containing aluminum to carry out a glue-forming treatment through a parallel flow method under proper conditions; filtering, washing, drying so as to obtain alumina dry glue containing silicon, then subjecting the alumina dry glue to the processes of forming, drying, and burning so as to obtain a catalyst carrier, and then loading a hydrogenation active metal component on the catalyst carrier through an impregnating or kneading method so as to obtain the hydro-treatment catalyst. The preparation method can organically combine clay and the generated alumina particles, and adjusts the pore structure and acidity of the catalyst. The obtained catalyst is suitable for hydrogenation demetallization, hydrogenation desulfurization, or hydrogenation conversion of heavy oil or residual oil.

Description

technical field [0001] The invention relates to a preparation method of a hydrotreating catalyst, in particular to a preparation method suitable for heavy oil or residue oil hydrotreating catalyst. Background technique [0002] With the increase of heavy and inferior crude oil and the change of market demand structure for light oil, the processing technology of inferior heavy oil (including various heavy oil and residual oil, etc.) has become the research focus of major oil companies and petroleum scientific research institutions direction. The processing of inferior heavy oil is not only to crack it into products with low boiling point, such as naphtha, middle distillate oil and vacuum gas oil, but also to increase their hydrogen-carbon ratio, so the basic way of its processing is basically There are two methods of hydrogenation or decarburization. Decarbonization processes include coking, solvent deasphalting, heavy oil catalytic cracking, etc.; hydrogenation includes hy...

Claims

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Application Information

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IPC IPC(8): B01J23/883B01J32/00B01J21/12B01J35/10C10G45/08
Inventor 朱慧红孙素华刘杰刘立军金浩杨光
Owner CHINA PETROLEUM & CHEM CORP
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