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Method for preparing heavy oil hydrotreating catalyst

A heavy oil hydrogenation and catalyst technology, applied in physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve problems such as low utilization of macropores

Active Publication Date: 2016-11-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The active metal component of the residual oil hydrotreating catalyst prepared by the above method is more evenly distributed in the macropores and small pores of the carrier, resulting in a low utilization rate of the macropores

Method used

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  • Method for preparing heavy oil hydrotreating catalyst
  • Method for preparing heavy oil hydrotreating catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weigh carbon black powder I4.3 with a particle size of 800 mesh (the particles can pass through the 800-mesh sieve but not the 1000-mesh sieve) and place it in the spray rolling pot. Spray and impregnate the carbon black powder containing 0.8 g of molybdenum oxide and 0.6 g of cobalt oxide in an active metal impregnating solution to saturate the carbon black powder, and dry the impregnated carbon black powder at 110° C. for 3 hours. The carbon black powder after drying is put again in the spray boiling pan, and under the rotating state, spray the ethanol solution of tetrabutyl titanate containing 0.6 grams of titanium oxide to the carbon black powder in the rolling pan in an atomized manner. The carbon black powder is saturated with adsorption, and the impregnated carbon black powder is dried at 110°C for 3 hours for use.

[0033] Weigh 11.4 grams of carbon black powder II with a particle size of 300 (the particles can pass through the 300-mesh sieve but not the 325-mes...

Embodiment 2

[0037] Same as Example 1, except that the weight of carbon black powder I is 7.2 grams, and the particle size is 600 mesh (the particles can pass through the 600 mesh sieve but cannot pass through the 800 mesh sieve), and the hydrogenation active component impregnation solution I contains 0.9 tungsten oxide gram, 0.5 gram of nickel oxide, containing 0.7 gram of titanium oxide in titanium-containing solution I, titanium solution is tetraethyl titanate ethanol solution, carbon black powder II weight is 5.7 grams, and particle diameter is 400 mesh (particle can pass through 400 mesh sieve 0.3 grams of tungsten oxide and 0.4 grams of nickel oxide in the hydrogenation active component impregnation solution II, 0.1 grams of titanium oxide in the titanium-containing solution II, and the titanium solution is tetraethyl titanate ethanol Solution, the add-on of polyethylene glycol solution is 43 grams and makes catalyst C2 of the present invention, and this catalyst MoO 3 The mass perce...

Embodiment 3

[0039] Same as Example 1, except that the weight of carbon black powder I is 5.7 grams, and the particle size is 1000 mesh (the particles can pass through the 1000 mesh sieve but cannot pass through the 1340 mesh sieve), and the hydrogenation active component impregnation solution I contains 1.0 tungsten oxide gram, 0.7 gram of cobalt oxide, 0.8 gram of titanium oxide contained in titanium-containing solution I, carbon black powder II weight is 8.6 grams, and particle size is 500 mesh (particle can pass through 500 mesh sieve but not pass through 600 mesh sieve), add Hydrogen active component impregnation solution II contains 0.5 grams of tungsten oxide, 0.3 grams of cobalt oxide, 0.3 grams of titanium oxide in titanium-containing solution II, and the addition of polyethylene glycol solution is 100 grams to obtain catalyst C3 of the present invention. The catalyst MoO 3 The mass percentage is 10wt%, WO 3 The mass percentage content is 1.5 wt%, the mass percentage content of Ni...

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Abstract

The invention discloses a method for preparing a heavy oil hydrotreating catalyst. The method comprises the following steps: (1) a physical pore expanding agent I is impregnated with a hydrogenation active component impregnation solution I and a titanium-containing solution I respectively, a physical pore expanding agent II is impregnated with a hydrogenation active component impregnation solution II and a titanium-containing solution II respectively, and the impregnated physical pore expanding agent I and physical pore expanding agent II are dried for standby application; (2) the physical pore expanding agent I and the physical pore expanding agent II obtained in the step (1) are mixed with pseudo boehmite dried gel powder, a chemical pore expanding agent, an extruding promotor and a peptizing agent, the mixture is kneaded into a plastomer, extruding, drying and roasting are performed, and a modified alumina carrier is prepared; (3) the modified alumina carrier obtained in the step (2) is impregnated with a hydrogenation active component impregnation solution III and is dried and roasted, and the heavy oil hydrotreating catalyst is prepared. The catalyst prepared with the method has higher content of active metal in large pores and smaller content of active metal in small pores, multiple active components are distributed at the large pores, the utilization ratio of the large pores is increased remarkably, and the heavy oil hydrotreating catalyst has better hydro-desulfurization and hydro-denitrification activity.

Description

technical field [0001] The invention relates to a preparation method of a heavy oil hydrotreating catalyst. Background technique [0002] With the increasing requirements for deep processing of raw materials worldwide, the main energy structure is gradually developing in the direction of macromolecules and high carbon, especially for my country where crude oil is generally heavy. Impurities in heavy oil, especially residual oil, such as S, N, carbon residue and heavy metals must be effectively removed to meet the requirements of catalytic cracking feed. If the impurity content is too high, it will lead to poisoning of downstream catalytic cracking catalysts. At present, most catalysts for hydrocarbon hydroprocessing use alumina as a carrier, with Mo and / or W and Ni and / or Co as active components. [0003] CN1289822A discloses a heavy oil hydrotreating catalyst and its preparation method. The catalyst uses alumina as a carrier matrix, and uses Group VIB metals and Group VIII...

Claims

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Application Information

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IPC IPC(8): B01J23/883B01J23/888C10G45/08
Inventor 季洪海王少军凌凤香沈智奇杨卫亚郭长友王丽华
Owner CHINA PETROLEUM & CHEM CORP
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