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Heavy oil hydrotreating method

A technology for hydrogenation and treatment of heavy oil, applied in refining to remove heteroatoms, etc., can solve problems such as deactivation of downstream catalysts

Inactive Publication Date: 2013-10-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Residual oil contains a large amount of metal impurities such as Ni, V, Fe, Ca and solid impurities. If these impurities cannot be effectively removed, it will have an adverse effect on the downstream hydrogenation catalyst and easily deactivate the downstream catalyst.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0034] The preparation of the alumina support for the hydrodemetallization catalyst used in the present invention and its preparation method are described.

[0035] Take by weighing the dry rubber powder (dry basis is 73% that Changling Refinery Catalyst Factory produces, and wherein pseudo-boehmite content is 68%, and gibbsite content is 5 weight %, and surplus is amorphous alumina) 1000 gram, 27 grams of sage powder (product of Henan Lankao tianjing rubber factory), 25g of hydroxymethyl cellulose mixes, then adds 1200 milliliters of aqueous solutions containing 24g of nitric acid, and extrudes into outer diameter φ 1.1mm on a plunger extruder. Butterfly strips. The wet strip was dried at 120° C. for 4 hours and calcined at 930° C. for 3 hours to obtain carrier 1-Z1. The physical and chemical properties of carrier 1-Z1 are shown in Table 1-1.

Embodiment 1-2

[0037] The preparation of the alumina support for the hydrodemetallization catalyst used in the present invention and its preparation method are described.

[0038] Take by weighing 1000 grams of dry rubber powder produced by Shanxi Aluminum Plant (the dry basis is 69%, wherein the pseudo-boehmite content is 71%, the gibbsite content is 6% by weight, and the balance is amorphous alumina) 1000 grams, 27 Ke Tianjing powder (product of Henan Lankao Tianjing Rubber Factory), 25g polyvinyl alcohol (Changling Catalyst Factory) mixes, then adds 1200 milliliters of aqueous solutions containing nitric acid 24g, extrudes into outer diameter φ 1.1mm on the twin-screw extruder Clover shaped strips. The wet strip was dried at 120° C. for 4 hours and calcined at 750° C. for 3 hours to obtain carrier 1-Z2. The physical and chemical properties of carrier 1-Z2 are shown in Table 1-1.

[0039] Table 1-1

[0040] carrier number

Embodiment 1-3

[0042] The hydrodemetallization catalyst used in the present invention with alumina as the carrier and its preparation method are described.

[0043] Get 200 grams of carrier 1-Z1 prepared in Example 1-1, use 500 milliliters of MoO 3 80 g / l, V 2 o 5 The mixed solution of 16 g / L ammonium heptamolybdate and ammonium metavanadate was impregnated for 1 hour, filtered, dried at 120°C for 4 hours, and calcined at 430°C for 3 hours to obtain the hydrodemetallization catalyst 1-CZ1. The composition of hydrodemetallization catalyst 1-CZ1 is listed in Table 1-2.

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Abstract

The invention discloses a heavy oil hydrotreating method in which raw oil contacts with a hydrodemetallization catalyst and a hydrotreating catalyst in sequence under heavy oil hydrotreating reaction conditions. The heavy oil hydrotreating method is characterized in that the hydrodemetallization catalyst contains a carrier and a hydrogenation reactive metal ingredient carried on the carrier, wherein the hydrogenation reactive metal ingredient is a combination of at least one metal ingredient selected from of VIB group and at least one metal ingredient selected by VB group, counted by oxide and with the hydrodemetallization catalyst as benchmark, the content of the VIB group metal ingredient is 0.2-15wt% and the content of the VB group metal ingredient is 0.2-12 wt%.

Description

technical field [0001] The invention relates to a heavy oil hydrotreating method. Background technique [0002] As crude oil becomes heavier and inferior, the difficulty of crude oil processing increases, and the yield of light oil products decreases. However, the market demand for high-quality light oil products continues to increase, and environmental protection regulations are becoming more and more inclusive. strict. At present, the processing and full utilization of heavy oil, especially residual oil, is becoming a major topic of concern in the global oil refining industry, and residual oil hydrogenation technology is a widely used processing technology in heavy oil processing technology, and is recognized as an economical and environmentally friendly deep processing technology . Residual oil contains a large amount of metal impurities such as Ni, V, Fe, Ca and solid impurities. If these impurities cannot be effectively removed, it will have an adverse effect on the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/04
Inventor 贾燕子杨清河李大东王奎胡大为赵新强戴立顺刘涛
Owner CHINA PETROLEUM & CHEM CORP
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