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A kind of heavy oil hydrogenation processing method

A technology for heavy oil hydrogenation and treatment methods, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., to achieve good hydrodesulfurization effects

Active Publication Date: 2017-08-22
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a new heavy oil hydrotreating method that can effectively improve the properties of heavy oil hydrogenation products in view of the current technical requirements for desulfurization, demetallization and carbon residue removal of heavy feedstock oil

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  • A kind of heavy oil hydrogenation processing method
  • A kind of heavy oil hydrogenation processing method
  • A kind of heavy oil hydrogenation processing method

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preparation example Construction

[0029] The present invention first provides a reference preparation method of the carrier I in the heavy oil hydrotreating catalyst I, and the method may include:

[0030] (1) A pseudo-boehmite with a large pore size and a high pore volume is prepared by reacting an aqueous solution of sodium metaaluminate and / or sodium aluminate with an acidic solution and then aging, washing and drying; the conditions of the reaction include : The reaction pH is 4.5-9, preferably 5.5-8.5, and the reaction temperature is 15-75°C, preferably 20-60°C; the aging conditions include: adding an aging agent, and the aging temperature is 15-75°C, preferably 20-60°C, the aging time is 0.5-8 hours, preferably 2-6 hours, the aging agent is at least one selected from the group consisting of ammonium carbonate, ammonium bicarbonate, ammonium carbonate aqueous solution and ammonium bicarbonate aqueous solution, preferably Ammonium carbonate aqueous solution; the washing is a conventional method, whose purpose...

Embodiment 1

[0053] 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 mol / L; weigh 210 grams of sodium metaaluminate (product of Tianjin Jinke Fine Chemical Research Institute), Add deionized water to dissolve into a solution b1 with a molar concentration of 3.0 mol / L; weigh 230 grams of ammonium carbonate (product of Beijing Chemical Reagent Company), and add deionized water to dissolve into a solution c1 with a molar concentration of 0.5 mol / L. Add solution a1 and solution b1 to a 10 liter gelling tank in a parallel flow to react, control the flow rate of solution a1 and solution b1, and make the pH value of the reaction process 8.5 and gel forming temperature of 60℃. After completion, add solution c1, age at 60°C for 2.5 hours, filter, wash the filter cake with 10 liters of 60°C deionized water, and dry it in a drying oven at 150°C for 2 hours to obtain pseudo-boehmite A, 600°C A...

Embodiment 2

[0055] Weigh 666 grams of aluminum sulfate (product of Beijing Chemical Plant) and add deionized water to dissolve it into solution a2 with a molar concentration of 0.5 mol / L; Weigh 210 grams of sodium metaaluminate (product of Tianjin Jinke Fine Chemical Research Institute), Add deionized water to dissolve into a solution b2 with a molar concentration of 2.0 mol / L; weigh 370 grams of ammonium bicarbonate (product of Beijing Chemical Reagent Company), and add deionized water to dissolve into a solution c2 with a molar concentration of 1.0 mol / L. Add solution a2 and solution b2 into a 10 liter gelling tank in parallel flow at the same time, and control the flow rate of solution a2 and solution b2 to make the pH value of the reaction process 6.0 and the gel forming temperature 40℃. 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 it in a drying oven at 100°C for 6 hours to obtain pseudo-boeh...

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Abstract

The present invention provides a heavy oil hydrotreating method, the method comprises contacting of heavy oil with a catalyst composition of a heavy oil hydrotreating catalyst I and a heavy oil hydrotreating catalyst II for heavy oil hydrotreating under heavy oil hydrotreating conditions, wherein first the heavy oil is contacted with the heavy oil hydrotreating catalyst I, and then contacted with the heavy oil hydrotreating catalyst II, by calculation of volume on the basis of the total volume of the catalyst composition as a reference, the content of the heavy oil hydrotreating catalyst I in the catalyst composition is 20-60v%, and the content of the heavy oil hydrotreating catalyst II in the catalyst composition is 40-80v%. Compared with conventional heavy oil hydrotreating methods, the heavy oil hydrotreating method has better hydrodesulfurization, demetalization and carbon residue removal effects when used in heavy oil hydrotreating.

Description

Technical field [0001] The invention relates to a method for hydrotreating heavy oil. Background technique [0002] With the continuous shortage of crude oil resources and the increasing demand for high-quality oil products, the processing volume of heavy and inferior oil products by petrochemical companies has increased year by year. Compared with distillate oil, heavy oil contains a large amount of metal impurities such as nickel, vanadium, iron and calcium. Therefore, the above metal impurities must be effectively removed and deposited during the hydrotreating process, otherwise it will easily cause catalyst deactivation and bed layer The pressure drop increases, shortening the catalyst operation cycle. At the same time, heavy and inferior oil products also contain a lot of harmful substances such as sulfur and carbon residue, which affect the product distribution and product properties of the secondary processing process such as catalytic cracking, and must be effectively re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G45/06C10G45/08B01J23/882B01J23/883
Inventor 胡大为杨清河刘佳孙淑玲刘学芬戴立顺李大东
Owner CHINA PETROLEUM & CHEM CORP
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