Heavy oil hydrogenation catalyst and preparation method thereof

A catalyst and preparation process technology, which is applied in the field of heavy oil hydrogenation catalyst and its preparation, can solve the problems of low production efficiency, long drying time, dust pollution, etc., and achieve the effects of improving production efficiency, avoiding water addition, and reducing energy consumption

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

[0009] In the above-mentioned prior art, the pseudo-boehmite (a specific form of aluminum hydroxide) used is a powder product, and the dry basis content of alumina in the pseudo-boehmite is about 70%, and the water contained is generally Crystal water (the content on a dry basis is the mass percentage of the alumina solid obtained when the pseudo-boeh

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] 1. The preparation method of pseudo-boehmite adopts the pH swing gelation method, and the specific process includes the following steps:

[0022] a) Prepare an aqueous acidic aluminum salt solution, with Al in the solution 2 o 3 The metered concentration is 2~10g / 100ml;

[0023] b) Prepare an aqueous alkaline aluminate solution in which Al 2 o 3 The calculated concentration is 8~30g / 100ml, or prepare dilute ammonia solution, NH 3 The content is 8~16 g / 100ml;

[0024] c) Add an appropriate amount of acidic aluminum salt solution to the neutralized bottom water to lower the pH value to 2.0-4.0, preferably 3.0-4.0, most preferably 3.0-3.5, and the solution temperature is 50-95°C, preferably 55 ~75°C, the most suitable is 60~70°C; stop adding the acidic aluminum salt solution and stabilize for 3~10 minutes;

[0025] d) The acidic aluminum salt aqueous solution and the alkaline aluminate aqueous solution are continuously added to the step (c) at the same time to carry ...

Embodiment 1

[0037] 2L sodium metaaluminate aqueous solution (with Al 2 o 3 The concentration is 15g / 100mL) and 3L aluminum sulfate aqueous solution (as Al 2 o 3 The concentration of the meter is 3g / 100mL) and put them into the container at the high position respectively, and the flow meter flows into the stainless steel container equipped with a 6L clean water belt agitator and a heating mantle, and heats to 60°C; Aluminum sulfate solution, reduce the pH value of the slurry to 3.0, and after stabilizing for 10 minutes, add the two materials into the stainless steel tank at a certain speed at the same time, keep the pH value at 7.3, and neutralize the gelling reaction for 15 minutes. Then stop adding aluminum sulfate solution, so that the pH value rises to 9.2, stop adding sodium metaaluminate solution, and stabilize for a period of time; pass through aluminum sulfate solution, reduce the pH value of the slurry to 3.0, and stabilize for a period of time; pass through sodium metaaluminate...

Embodiment 2

[0040] Compared with Example 1, during the pH swing process, the solution temperature was 65°C, and the neutralized pH value was 7.0. After the slurry was filtered and washed, it was dried at 110°C for 0.8 hours, and the dry basis content of the material was 45%. Other materials The dosage and operating conditions were the same as those in Example 1 to prepare catalyst C-B. Carrier B was saturated and impregnated with solution L-1, dried at 110°C for 2 hours, and calcined at 500°C for 3 hours to obtain catalyst C-A.

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Abstract

The invention discloses a heavy oil hydrogenation catalyst and a preparation method thereof. The heavy oil hydrogenation catalyst comprises a carrier and an active ingredient; the carrier is aluminum oxide, and is prepared from pseudo-boehmite with dry basis content below 50% via moulding; the active ingredient are metals selected form family VIII, Co or Ni, and/or family VI B, Mo or W. The preparation method comprises following steps: preparation of pseudo-boehmite, preparation of the carrier, and loading of the active ingredient. The heavy oil hydrogenation catalyst is capable of maintaining high demetalization, desulphurization, and carbon residue removing activities, simplifying drying process of pseudo-boehmite preparation, avoiding dust pollution caused by moulding process, increasing production efficiency, reducing production energy consumption, and reducing catalyst cost further.

Description

technical field [0001] The invention relates to a heavy oil hydrogenation catalyst and a preparation method thereof. Background technique [0002] As the world's crude oil gradually becomes heavier and worse, and the market demand for light oil products, especially high-quality clean light oil products, grows rapidly, hydrogenation technology has received special attention worldwide. For example, hydrorefining of various light distillate oils, hydrotreating of heavy oils, etc. [0003] Heavy oil is the most complex part of crude oil, which contains more metals (Fe, Ca, Na, Ni, V, etc.), sulfur, nitrogen and other non-ideal components (colloid, asphaltenes). In the process of heavy oil hydrotreating, these impurities are deposited on the catalyst, causing permanent poisoning of the catalyst, and more seriously, blocking the catalyst bed, resulting in frequent replacement of the catalyst. One of the keys to heavy oil hydroprocessing technology is to develop catalysts with ex...

Claims

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Application Information

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IPC IPC(8): B01J23/883B01J32/00B01J21/04C10G45/08
Inventor 刘杰孙素华朱慧红彭绍忠金浩杨光于淼
Owner CHINA PETROLEUM & CHEM CORP
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