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Heavy oil or residual oil hydrogenation catalyst and preparation method thereof

A residue hydrogenation and catalyst technology, applied in the direction of catalyst activation/preparation, physical/chemical process catalyst, catalyst carrier, etc., can solve the problems of unsuitable hydrogenation catalyst, small pore size, etc. The effect of increasing acid content and good peptization

Active Publication Date: 2011-05-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The silicon-containing carrier prepared by this gel-forming method has a small pore size and is not suitable for use as a catalyst for hydroprocessing of heavy oil or residual oil

Method used

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  • Heavy oil or residual oil hydrogenation catalyst and preparation method thereof
  • Heavy oil or residual oil hydrogenation catalyst and preparation method thereof
  • Heavy oil or residual oil hydrogenation catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Preparation of silicon-containing aluminum hydroxide

[0029] Preparation of sodium metaaluminate solution concentration is 45gAl 2 o 3 / L, the caustic ratio is 1.45, a total of 1.6L, and the concentration of aluminum sulfate solution is 15gAl 2 o 3 / L total 0.8L, ready for use.

[0030] Roast kaolin raw soil in a high-temperature furnace at a temperature of 600°C and hold a constant temperature for 4 hours. After cooling, weigh 30 g and put it into a container. Add 150 mL of 2 mol / L nitric acid and 150 mL of 2 mol / L citric acid, and heat for reaction. The reaction temperature is 60°C, the reaction time is 8h.

[0031]Add 700 mL of distilled water to the modified kaolin slurry, the slurry has a solid content of 3 wt%, and heat to 70°C. Add the prepared sodium metaaluminate solution to the modified kaolin slurry, adjust the pH to 10.9, then add aluminum sulfate solution to adjust the pH to 8.5, keep the pH at 8.5, and add sodium metaaluminate and aluminum sulfat...

Embodiment 2

[0036] The other conditions of the silicon-containing aluminum hydroxide are the same as in Example 1, except that the amount of kaolin after calcination is increased to 60 g, and the solid content in the slurry is 6 wt % to prepare silicon-containing aluminum oxide.

[0037] The preparation method of the catalyst is the same as in Example 1, and the catalyst T-B is prepared.

Embodiment 3

[0039] The preparation method of silicon-containing aluminum hydroxide is the same as in Example 1.

[0040] Take by weighing 100g of silicon-containing aluminum hydroxide (containing 75wt% aluminum oxide) prepared, add 1.5g carbon black and 3.0 grams of scallop powder, mix well, take by weighing 3.0 grams of ammonium bicarbonate and 6 grams of polyethylene glycol, respectively Add 55 grams of distilled water to dissolve it completely, then add it to the mixed raw materials in sequence, knead and extrude it into a rod, then dry at 110°C for 4 hours, and bake at 650°C for 3 hours to obtain carrier C.

[0041] Weigh 21.37g of phosphoric acid, add 450ml of distilled water, then sequentially add 72.76g of molybdenum oxide and 19.81g of basic nickel carbonate, heat and stir until completely dissolved, then adjust the solution to 500ml with distilled water to obtain solution L-3. Saturated carrier C was impregnated with L-3 solution, dried at 120°C for 2 hours, and calcined at 430°C...

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Abstract

The invention discloses a heavy oil or residual oil hydrogenation catalyst and a preparation method thereof. The catalyst carrier is prepared from silicon-containing aluminum hydroxide prepared by using a clay modified raw material as a crystal seed, active metal ingredients comprise VIII and VIB metals, and the silicon dioxide content of the catalyst is 0.1 to 45 weight percent. The preparation method for the catalyst comprises the following processes of: preparing the silicon-containing aluminum hydroxide, then adding proper glue solvent and additive for molding, performing drying and roasting to obtain the heavy oil or residual oil hydrogenation catalyst carrier, soaking the residual oil hydrogenation catalyst carrier into the active hydrogenation metal ingredients, and then performingdrying and roasting to obtain the heavy oil or residual oil hydrogenation catalyst. The physical and chemical properties and the use performance of the catalyst, particularly the use performance in the heavy oil or residual oil hydrogenation process, can be obviously improved.

Description

technical field [0001] The invention relates to a hydrogenation treatment catalyst and a preparation method thereof, in particular to a hydrogenation treatment catalyst suitable for heavy oil or residual oil and a preparation method thereof. Background technique [0002] Heavy oil or residual oil hydrogenation catalysts often use alumina or contain a small amount of one or more other elements such as Si, P, Ti, B, Mg, F, etc. γ-A1 2 o 3 as the carrier. Many studies have shown that adding an appropriate amount of silica to alumina can increase the acidity and specific surface area of ​​alumina, which is beneficial to polymerization and hydrogenation reactions. Due to the high molecular weight and high impurity content of heavy oil or residual oil, catalysts are generally required to have higher pore volume and larger pore diameter in terms of molecular diffusion of heavy oil or residual oil and prolonging the activity stability of catalysts in catalyst reaction engineering....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/883B01J27/19B01J35/10B01J32/00B01J37/00C10G45/08C10G47/12
Inventor 朱慧红孙素华刘杰杨光张成
Owner CHINA PETROLEUM & CHEM CORP
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