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Method of hydro-conversion of polycyclic aromatic hydrocarbons

A technology for polycyclic aromatic hydrocarbons and hydroconversion, which can be used in hydrotreating process, treatment of hydrocarbon oil, petroleum industry, etc., and can solve the problem of high hydrogen consumption

Active Publication Date: 2014-03-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The outstanding problem existing in the existing PAH hydroconversion technology is the high hydrogen consumption

Method used

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  • Method of hydro-conversion of polycyclic aromatic hydrocarbons
  • Method of hydro-conversion of polycyclic aromatic hydrocarbons

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041]Weigh 11.8 grams of cobalt nitrate and 17.4 grams of ammonium heptamolybdate, and make 110 milliliters of co-immersion solution with deionized water. Use this solution to impregnate 100 grams of clover-shaped alumina strip carrier S1 with a circumscribed circle diameter of 1.4 mm from Changling Catalyst Branch Company (calcined at 600°C for 4 hours) for 6 hours, then dried at 120°C for 4 hours, and calcined at 420°C for 4 hours , to obtain catalyst C1. Measured by X-ray fluorescence spectrometry, the catalyst C1 contains 2.4% by weight of CoO, containing MoO 3 It is 12.0% by weight.

Embodiment 2

[0043] Weigh 11.7 grams of nickel nitrate and 17.4 grams of ammonium heptamolybdate, and make 110 milliliters of co-immersion solution with deionized water. 100 g of S1 carrier was impregnated with this solution for 6 hours, then dried at 120° C. for 4 hours, and calcined at 420° C. for 4 hours to obtain catalyst C2. Measured by X-ray fluorescence spectrometry, the catalyst C2 containing NiO is 2.4% by weight, containing MoO 3 It is 12.0% by weight.

Embodiment 3

[0045] Weigh 9.55 grams of nickel nitrate and 25.7 grams of ammonium metatungstate, and make 110 milliliters of co-immersion solution with deionized water. 100 g of S1 carrier was impregnated with this solution for 6 hours, then dried at 120° C. for 4 hours, and calcined at 420° C. for 4 hours to obtain catalyst C3. Measured by X-ray fluorescence spectrometry, the catalyst C3 containing NiO is 1.8% by weight, containing WO 3 It is 18.5% by weight.

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Abstract

The invention discloses a method of hydro-conversion of polycyclic aromatic hydrocarbons. The method comprises the following steps: (1), in at least one hydrogenation reaction zone, enabling a material containing polycyclic aromatic hydrocarbons to contact with a hydrogenation catalyst for reaction in the presence of a hydrogen gas to obtain a reaction product with polycyclic aromatic hydrocarbons which are partly hydro-generated and saturated; and (2), in at least one hydrogen-cracking reaction zone, enabling the reaction product with polycyclic aromatic hydrocarbons partly hydro-generated and saturated, which is obtained in the step (1) to contact with a hydrogen-cracking catalyst for reaction in the presence of the hydrogen gas, wherein a conversation rate of the polycyclic aromatic hydrocarbons in the material containing the polycyclic aromatic hydrocarbons is over 40wt% by selecting the hydrogenation catalyst and operation conditions of the hydrogenation reaction zone; and relative yield of a monocyclic hydrogenation product in the products is 4%-80%; and the conversion rate of the polycyclic aromatic hydrocarbons based on the total amount of the polycyclic aromatic hydrocarbons in the material containing the polycyclic aromatic hydrocarbons is over 85wt% by selecting the hydro-cracking catalyst and the operation conditions in the hydrogen-cracking reaction zone, and the relative yield of the monocyclic hydrogen-cracking product in the products is 4%-30%.

Description

technical field [0001] The invention relates to a method for the hydrogenation conversion of aromatic hydrocarbons. Background technique [0002] Crude oil resources are becoming increasingly heavy, which is mainly manifested in the gradual increase in the content of aromatics in crude oil, especially the gradual increase in the content of polycyclic aromatic hydrocarbons in heavy oil fractions. However, the demand for light oil products in various countries in the world is increasing day by day. Therefore, many Heavy oil lightening technology came into being, such as: catalytic cracking technology. However, during the catalytic cracking reaction of heavy oil, a considerable part of the polycyclic aromatic hydrocarbons in the catalytic cracking process is polycondensed into carbon and deposited on the catalyst, or polymerized into higher molecular weight polycyclic aromatic hydrocarbons. In order to improve the conversion rate of raw materials and To improve the yield of li...

Claims

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Application Information

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IPC IPC(8): C10G65/00
Inventor 刘锋李明丰辛靖李洪宝李会峰褚阳蒋东红聂红
Owner CHINA PETROLEUM & CHEM CORP
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