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Hydrotreating method of acid-containing crude oil

A hydrogenation treatment and crude oil technology, applied in chemical instruments and methods, refined hydrocarbon oil, petroleum industry, etc., can solve the problems of catalyst back-mixing, cumbersome loading and unloading of different types, etc., and achieve high hydrogenation activity, long operation period of the device, The effect of a good response channel

Active Publication Date: 2019-06-18
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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  • Hydrotreating method of acid-containing crude oil
  • Hydrotreating method of acid-containing crude oil
  • Hydrotreating method of acid-containing crude oil

Examples

Experimental program
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Effect test

Embodiment 1

[0058]Take by weighing silicon oxide content and be that the water glass 1000g of 30wt% adds in the beaker, start stirring device, slowly add mass concentration in the beaker and be the nitric acid solution 376g of 62%, the pH value of the water glass solution in the beaker after stirring and dissolving is 2.0, then Add 62.5g of nickel nitrate, and after dissolving, add 468g of pseudoboehmite (properties are as follows: pore volume 0.985mL / g, specific surface area is 313m 2 / g, dry basis is 72wt%), after stirring evenly, add 83g of curing agent urea, after the urea is completely dissolved, add deionized water, so that the material in the beaker is a paste with a certain fluidity, and silicon dioxide and oxide The solids content is 33% based on aluminum.

[0059] 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 guide mold is three cy...

Embodiment 2

[0064] The preparation process is as in Example 1, but the diameter of the spherical cavity of the mold and the diameter of the three cylinders in the guide mold are increased, and the prepared catalyst carrier B and catalyst B C The properties are shown in Table 1. The obtained catalyst carrier B had an outer diameter of about 7.6 mm and a through hole diameter of about 3.8 mm.

Embodiment 3

[0066] The preparation process is as in Example 1, except that nickel nitrate will not be added, and the solid content in terms of silica and alumina is 35%, the prepared catalyst carrier C and catalyst C C , Catalyst properties are shown in Table 1. Wherein, the outer diameter of the obtained catalyst carrier C is about 5.3 mm, and the diameter of the through holes is about 2.0 mm.

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Abstract

The invention discloses a hydrotreating method of acid-containing crude oil. The method includes at least one up-flow hydrogenation reactor, in which at least one of the following hydrotreating catalysts is filled; the hydrotreating catalyst comprises a carrier and active components, wherein the carrier is a sphere with three through channels, and the outer diameter of the sphere is 5.0-8.0mm, thethree channels are all through-holes that pass through the center of the sphere and are perpendicular to each other in pairs, and the diameter of the through-holes is 30%-60% of the outer diameter ofthe sphere. The method provided by the invention adopts the specific catalyst, which has good hydrogenation deacidification performance and demetalization and metal accommodation capacity, at the same time has certain desulfurization and carbon residue and asphaltene conversion capability, the hydrogenation activity is high, and the device operation cycle is long. Moreover, the method provided bythe invention overcomes the problems of large catalyst variety, tedious loading and unloading, backmixing of different catalysts and the like in current up-flow reactors.

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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IPC IPC(8): C10G45/14C10G45/08B01J27/19B01J35/08
Inventor 耿新国刘铁斌
Owner CHINA PETROLEUM & CHEM CORP
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