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A kind of hydrotreating method of sour crude oil

A technology for hydroprocessing and crude oil, which is applied in the fields of hydroprocessing process, hydrocarbon oil treatment, petroleum industry, etc. It can solve the problems of cumbersome loading and unloading of different types, catalyst back-mixing, etc., and achieve long operation period of the device, high hydrogenation activity, The effect of a good response channel

Active Publication Date: 2021-04-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the present invention can apply the single type of catalyst to the upflow reactor, which overcomes the problems of many types of catalysts in the current upflow reactor, cumbersome loading and unloading, and back-mixing of different types of catalysts.

Method used

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  • A kind of hydrotreating method of sour crude oil
  • A kind of hydrotreating method of sour crude oil
  • A kind of hydrotreating method of sour crude oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Take by weighing 400 g of water glass with a silicon oxide content of 30 wt % and add it to the beaker, start the stirring device, slowly add 150 g of nitric acid solution with a mass concentration of 62% in the beaker, then add 42.9 g of nickel nitrate, stir and dissolve the water glass solution in the beaker The pH value is 2.0, then add 385.3g pseudo-boehmite (properties are as follows: pore volume 1.05mL / g, specific surface area is 306m 2 / g, dry basis is 70wt%), after stirring evenly, add curing agent urea 35g, add deionized water after the urea is all dissolved, make the material in the beaker be the paste with certain fluidity, and with silicon dioxide and oxide The solids content based on aluminum was 33%.

[0060] The above paste mass is pressed into two identical hemispheres with spherical cavities. Wherein, a guide mold is placed in a hemisphere, and the guide mold is made of wood. The structure of the guided mode is that there is a cylinder in the x-axis, ...

Embodiment 2

[0065] The preparation process is as in Example 1, except that the solid content of silica and alumina is 35%, and the mold is replaced, the diameter of the cavity and cylinder is increased, and the prepared catalyst carrier B and catalyst B C , whose properties are shown in Table 1. Wherein, the outer diameter of the obtained catalyst carrier B is about 9.5 mm, the diameter of the middle through hole is about 3.0 mm, and the diameter of the side through hole is about 1.6 mm.

Embodiment 3

[0067] The preparation process is as in Example 1, except that nickel nitrate is not added, the prepared catalyst carrier C and catalyst C C , whose properties are shown in Table 1. Wherein, the outer diameter of the obtained catalyst carrier C is about 7.0 mm, the diameter of the middle through hole is about 1.9 mm, and the diameter of the side through hole is about 1.3 mm.

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Abstract

The invention discloses a hydrogenation treatment method of acid-containing crude oil. The method comprises at least one upflow hydrogenation reactor and at least one hydroprocessing catalyst is filled; the carrier of the hydroprocessing catalyst has a spherical shape with three-dimensional through holes, and the carrier has seven through holes, including a middle through hole and a The side through hole has a spherical outer diameter of 6.0-10.0 mm, the middle through hole has a diameter of 25% to 40% of the spherical outer diameter, and the side through hole has a diameter of 10% to 20% of the spherical outer diameter. The invention adopts a specific catalyst, has good hydrodeacidification performance, metal removal capacity, desulfurization, carbon residue and asphaltene conversion capacity, and the device has a long operating period. Moreover, the method of the invention overcomes the problems of many types of catalysts in the current upflow reactor, cumbersome loading and unloading, back-mixing of different types of catalysts, and the like.

Description

technical field [0001] The invention relates to a method for hydrogenation treatment of acid-containing crude oil, in particular to a method for treating acid-containing crude oil by adopting an upflow hydrogenation process technology. Background technique [0002] Petroleum usually contains acid compounds, mainly in the form of naphthenic acid. The concentration or amount of acid in petroleum is expressed using the total acid number. The total acid number (TAN) refers to the number of milligrams of potassium hydroxide (KOH) required to neutralize all acidic components of 1 gram of crude oil or petroleum fractions, and the unit is mg KOH / g. [0003] In the process of petroleum refining, naphthenic acid in petroleum can directly react with iron, causing corrosion of refining equipment such as heating furnace tubes; it can also react with the protective film FeS on refining equipment, exposing new surfaces of metal equipment, subject to new corrosion. At present, ordinary r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G45/08C10G65/04C10G67/02C10G67/14
Inventor 耿新国刘铁斌
Owner CHINA PETROLEUM & CHEM CORP
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