A kind of preparation method of residual oil hydrotreating catalyst

A technology of hydrogenation treatment and residual oil hydrogenation, which is applied in the direction of physical/chemical process catalysts, catalyst carriers, chemical instruments and methods, etc., can solve the problem of low added value, achieve increased added value, no environmental pollution, and easy molding Effect

Active Publication Date: 2016-01-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fly ash is mainly used in construction materials, hydraulic engineering, road engineering, etc., with low added value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Preparation of silicon-containing alumina dry glue

[0039] Weigh the composition as SiO 2 44.28wt%, Al 2 o 3 48.80wt%, Fe 2 o 3 3.29wt%, CaO2.56wt%, and 500g of fly ash with a particle size of 200 mesh, added to 2500mL of a solution containing 287g of sodium hydroxide, stirred, and treated at 130°C for 4 hours. After the reaction, the residue was filtered out. An alkaline solution containing silicon and aluminum is obtained. Adjust the above mixed solution with sodium metaaluminate solution so that the Al in the solution 2 o 3 , SiO 2 The sum of the concentrations is 160g / L, ready for use.

[0040] Formulated with Al 2 o 3 5000mL of 50g / L aluminum sulfate solution, ready for use.

[0041] Add 1.0L deionized water into the gelling reaction tank, stir and heat to 70°C. Measure 1250mL of the above alkaline solution and 2500mL of the acidic solution respectively, and add the above two solutions into the reaction tank to keep the pH value of the reaction tan...

Embodiment 2

[0047] Other conditions are the same as embodiment 1, just make Al in the solution 2 o 3 , SiO 2 The total concentration is 130g / L, and the silicon-containing alumina dry glue is prepared.

[0048] The preparation method of the carrier and the catalyst is the same as in Example 1, and the carrier B and the catalyst Z-B are prepared.

Embodiment 3

[0050] The preparation method of silicon-containing alumina dry glue is the same as that in Example 1.

[0051] Weigh 100g of the prepared silicon-containing alumina dry glue (70wt% silicon-containing alumina), add 1.4g of carbon black and 2.8g of scallop powder, mix well, weigh 5.6g of polyethylene glycol, and add 100g of distilled water respectively to make It was completely dissolved, and then added to the mixed raw materials in sequence, kneaded and extruded to shape, then dried at 110°C for 4 hours, and calcined at 750°C for 3 hours to obtain carrier C.

[0052] Weigh 22.22g of phosphoric acid, add 450mL of distilled water, then sequentially add 78.44g of molybdenum oxide and 25.44g of basic nickel carbonate, heat and stir until completely dissolved, then adjust the solution to 500mL with distilled water to obtain solution L-2. The above-mentioned carrier was impregnated with L-2 solution, dried at 120°C for 2 hours, and calcined at 430°C for 3 hours to obtain catalyst Z-...

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Abstract

The invention discloses a preparation method of a residual oil hydro-treatment catalyst. The preparation method comprises the following steps: adding fly ash into a strong alkaline solution to carry out a treatment, filtering so as to obtain an alkaline solution containing silicon and aluminum, then using the alkaline solution containing silicon and aluminum and an acidic aluminum salt solution to carry out a gel-forming reaction through a parallel-flow method, filtering, washing and drying the reaction product so as to obtain alumina dry gel containing silicon, forming, drying and burning the alumina dry gel so as to obtain a catalyst carrier, and finally loading a hydrogenation active metal component onto the catalyst carrier through a conventional method so as to obtain the hydro-treatment catalyst. The preparation fully utilizes the fly ash, and thus has the advantages of low cost; moreover, the additional value of fly ash is increased, and the obtained hydro-treatment catalyst has a proper pore structure and acidity, and is especially suitable for heavy oil or residual oil hydro-treatment.

Description

technical field [0001] The invention relates to a preparation method of a residual oil hydrogenation treatment catalyst, in particular to a preparation method suitable for low-quality residual oil hydrogenation treatment 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/883B01J21/12B01J32/00C10G49/02C10G47/12C10G45/08
Inventor 王永林张成刘立军杨刚
Owner CHINA PETROLEUM & CHEM CORP
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