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Hydrotreating method for heavy oil containing asphaltene

A technology for hydroprocessing and heavy oil, which is applied in the treatment of hydrocarbon oil, petroleum industry, refining to remove heteroatoms, etc., and can solve the problems of low removal rate of asphaltenes and complicated reasons

Active Publication Date: 2015-01-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of the existing heavy oil hydrogenation technology is that the removal rate of S, N, heavy metal and asphaltenes cannot be well matched. For example, the catalyst with high metal removal activity is often S , N removal rate and asphaltene removal rate are not high
The reasons for such problems are complex

Method used

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  • Hydrotreating method for heavy oil containing asphaltene
  • Hydrotreating method for heavy oil containing asphaltene
  • Hydrotreating method for heavy oil containing asphaltene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Weigh 483 grams of aluminum chloride (product of Beijing Chemical Plant), add deionized water to dissolve it into a solution a1 with a molar concentration of 1; weigh 210 grams of sodium metaaluminate (product of Tianjin Jinke Fine Chemical Research Institute), add Dissolve in deionized water to form a solution b1 with a molar concentration of 3.0; weigh 230 grams of ammonium carbonate (product of Beijing Chemical Reagent Co., Ltd.), add deionized water to dissolve it into a solution c1 with a molar concentration of 0.5. Add solution a1 and solution b1 to a 10-liter gelling tank simultaneously in parallel flow, and control the inflow speed of solution a1 and solution b1 so that the pH value of the reaction process is 8.5, and the gelling temperature is 60°C. After completion, add solution C1, age at 60°C for 2.5 hours, filter, wash the filter cake with 10 liters of deionized water at 60°C, and dry in a drying oven at 150°C for 2 hours to obtain pseudo-boehmite A at 600°C...

Embodiment 2

[0068] Weigh 666 grams of aluminum sulfate (product of Beijing Chemical Plant), add deionized water to dissolve it into a solution a2 with a molar concentration of 0.5; weigh 210 grams of sodium metaaluminate (product of Tianjin Jinke Fine Chemical Research Institute), add deionized water Dissolve in water to form a solution b2 with a molar concentration of 2.0; weigh 370 grams of ammonium bicarbonate (product of Beijing Chemical Reagent Co., Ltd.), add deionized water to dissolve it into a solution c2 with a molar concentration of 1.0. Add solution a2 and solution b2 to a 10-liter gelling tank simultaneously in parallel flow, and control the inflow speed of solution a2 and solution b2 so that the pH value of the reaction process is 6.0, and the gelling temperature is 40°C. After completion, add solution C2, age at 40°C for 6 hours, filter, wash the filter cake with 15 liters of deionized water at 40°C, and dry in a drying oven at 100°C for 6 hours to obtain pseudo-boehmite B a...

Embodiment 3

[0070] Weigh 750 grams of aluminum nitrate (product of Beijing Chemical Plant), add deionized water to dissolve it into a solution a3 with a molar concentration of 1.5; weigh 210 grams of sodium metaaluminate (product of Tianjin Jinke Fine Chemical Research Institute), add deionized water Dissolve in water to form a solution b3 with a molar concentration of 4.5; weigh 300 grams of ammonium carbonate (product of Beijing Chemical Reagent Co., Ltd.), add deionized water to dissolve it into a solution c3 with a molar concentration of 1.5. Add solution a3 and solution b3 to a 10-liter gelling tank simultaneously in parallel flow, and control the inflow speed of solution a3 and solution b3 so that the pH value during the reaction is 7.0, and the temperature of the gelling tank is 25°C. After the reaction was completed, solution C3 was added, aged at 25°C for 4 hours, filtered, the filter cake was washed with 25 liters of deionized water at 25°C, and dried in a drying oven at 120°C fo...

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Abstract

A hydrotreating method for heavy oil containing asphaltene includes contact the heavy raw oil with a catalyst composition containing a hydrotreating catalyst I, a hydrotreating catalyst II and a hydrotreating III under hydrotreating reaction conditions. Calculated by the volume and with the total weight of the catalyst composition as a benchmark, the hydrotreating catalyst I accounts for 5-60%, the hydrotreating catalyst II accounts for 5-50%, and the hydrotreating catalyst III accounts for 10-60%. The hydrotreating catalyst I contains a molding alumina carrier with pore volume of 0.8-1.2 ml / g, specific surface area of 90-230 m<2>, the most probable pore diameter of 20-30 nm and average pore diameter of 25-35 nm, and 10-60 nm pore volume accounts for 95%-99.8% of the total pore volume; and the hydrotreating catalyst II contains a molding alumina carrier containing IVB metal component. Compared with the prior art, the method provided by the invention has better hydrocarbon oil hydrotreatment performance.

Description

technical field [0001] The invention relates to a method for hydrotreating hydrocarbon oil. Background technique [0002] The deep processing of heavy crude oil is not only beneficial to improve the utilization rate of crude oil, alleviate the tense trend of energy supply, but also reduce environmental pollution and achieve clean utilization of energy. Compared with distillate oil, heavy oil contains a large number of macromolecular reactants such as asphaltenes and colloids, while heteroatom compounds such as sulfur, nitrogen, and oxygen in heavy oil have a large Some of them are concentrated in asphaltenes, and these impurities and heavy metals will pollute the corresponding catalysts in the subsequent processing. Therefore, the hydroconversion of asphaltenes is a key step in the hydrogenation process of heavy oil. In the process of converting and removing asphaltene, it is necessary to select a catalyst with high activity and good stability and excellent performance acco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/04C10G45/08
CPCC10G45/04C10G45/08C10G2300/70
Inventor 胡大为杨清河孙淑玲刘佳聂红王奎赵新强戴立顺邵志才李大东
Owner CHINA PETROLEUM & CHEM CORP