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A kind of method for preparing hydrotreating catalyst

A technology for hydrotreating and catalyst, applied in physical/chemical process catalysts, catalyst carriers, chemical instruments and methods, etc., can solve the problems of low sodium content, environmental pollution, and a large amount of waste water, and achieve simple adjustment, no environmental pollution, The effect of pore distribution concentration

Active Publication Date: 2016-01-06
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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  • A kind of method for preparing hydrotreating catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Preparation of silicon-containing alumina dry glue

[0038] Preparation of sodium metaaluminate solution concentration is 55gAl 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, a total of 2L, heated to 70°C for use.

[0039] The original kaolin soil was roasted in a high-temperature furnace at a temperature of 800°C and kept at a constant temperature for 4 hours. After cooling, it was pulverized and passed through a 160-mesh sieve before being collected for use.

[0040] Add 1.0L of distilled water into the gel tank and heat to 70°C. Weigh 30 grams of sieved kaolin respectively and put them into sodium metaaluminate solution and aluminum sulfate solution, and flow into the above two slurries to keep the pH value at 9.0, and the solid-liquid ratio in the gelling tank is 50g / L No change, calculate the time for adding water in parallel, and add 1.5L of distilled water in parallel, and keep the tempe...

Embodiment 2

[0045] The other conditions of the silicon-containing alumina dry glue are the same as in Example 1, except that the amount of kaolin after roasting is increased to 50 grams to prepare silicon-containing alumina.

[0046] 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.

Embodiment 3

[0048] The preparation method of silicon-containing aluminum hydroxide is the same as in Example 1.

[0049] Weigh 100g of the prepared silicon-containing alumina dry glue (70wt% silicon-containing alumina), add 1.4g carbon black and 2.8g scallop powder, mix well, weigh 2.8g ammonium dihydrogen phosphate and 5.6g polyethylene glycol , respectively add 55g of distilled water to dissolve completely, and then sequentially add to the mixed raw materials, knead and extrude to shape, then dry at 110°C for 4h, and roast at 650°C for 3h to obtain carrier C.

[0050] 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. Saturatedly impregnate the above support with L-2 solution, dry at 120°C for 2h, and calcinate at 430°C for 3h to obtain catalyst T-C.

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Abstract

The invention discloses a method for preparing a hydro-treatment catalyst. The preparation method comprises the following steps: burning clay at a high temperature, grinding, sieving, separately adding the clay burned at a high temperature into an aluminum-containing alkaline solution and an aluminum-containing acidic solution, then carrying out a parallel-flow gel-forming treatment under a proper condition, filtering, water washing, and drying so as to obtain silicon-containing alumina dry gel, then forming, drying, and burning so as to obtain a catalyst carrier, and finally loading a hydrogenation active metal component onto the catalyst carrier through an impregnation method or a 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 has the advantages of uniform particle size and concentrated pore distribution. The catalyst is suitable for hydro-demetalization, hydro-desulfurization, or hydro-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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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/883B01J32/00B01J35/10C10G45/08
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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