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Preparation and application method of oil antichlor

A dechlorination agent and oil technology, which is applied in the treatment of hydrocarbon oil, petroleum industry, non-metallic refining, etc., can solve the problems of harsh operating conditions, cumbersome follow-up treatment, complicated preparation process, etc., and achieve increased reactivity, adsorption The effect of fast desorption rate and simple synthesis process

Active Publication Date: 2017-04-05
CESTOIL IND SERVICES SHENZHEN CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this can effectively reduce the chlorine content in the oil, it will inevitably bring a certain amount of water into the oil, which will affect the quality of the oil
In short, most of the currently commercially available oil pint (organic) chlorine agents have defects such as complicated preparation process, harsh operating conditions, narrow application range, and cumbersome follow-up treatment.

Method used

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  • Preparation and application method of oil antichlor
  • Preparation and application method of oil antichlor
  • Preparation and application method of oil antichlor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 (preparation of modified activated carbon)

[0023] Prepare modified activated carbon according to the preparation conditions in A-G in Table 1. The steps are as follows: add activated carbon and strong oxidizing medium into a reactor with a reflux and stirring device, stir for several hours at a certain temperature, and then wash and dry to obtain modified activated carbon. activated carbon.

[0024] Table 1

[0025]

Embodiment 2

[0026] Embodiment 2 (preparation of dechlorination agent)

[0027] The modified activated carbons A-G prepared in Example 1 are immersed in mixed solutions prepared with various heteropolyacids, lanthanum nitrate and soluble main group or transition metal salts, and then dried and activated to obtain different dechlorination agents product. The type and amount of modified activated carbon used, the type and amount of heteropoly acid, the type and amount of nitrate, the impregnation time, activation temperature, and activation time are shown in Table 2.

[0028] Table 2

[0029]

[0030]

Embodiment 3

[0031] Embodiment 3 (product effect evaluation)

[0032] The dechlorination effect evaluation steps are as follows: (1) add the dechlorination agent prepared in Example 2 and the naphtha (chlorine content is 51.4ppm) of a certain refinery in the reaction device, stir and feed inert gas to get rid of oxygen in the reactor Finally, control the pressure to 1.0MPa, then close the reactor, the mass ratio of dechlorination agent to oil is 1:15; (2) control the temperature in the reaction device to 150°C, and keep stirring for 6h; (3) stop heating, After cooling, samples were taken to analyze the chlorine content, and the data are shown in Table 3.

[0033] table 3

[0034]

[0035] Note: JX‐5D is a commercially available dechlorination agent

[0036] It can be seen from the data in the table that the dechlorination agents II, III, VII, and IX of the present invention can reduce the organic chlorine content in the oil to below 1.0ppm, and the dechlorination effect is obviously b...

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Abstract

The invention relates to a preparation and application method of an oil antichlor. Firstly, active carbon is added in a strong oxidant medium for oxidization modification to obtain modified active carbon, then, a mixed solution of soluble metal salt and other auxiliary agents is used for loading, and finally the loaded modified active carbon is dried and activated in a protective atmosphere or vacuum to obtain the antichlor product. The antichlor is excellent in selective adsorption and stability and good in dechlorination effect. In a mild condition, through the antichlor, an organic chloride in an oil product can be reduced to 0.2 ppm.

Description

technical field [0001] The invention belongs to the field of petrochemical industry, and in particular relates to an oil product dechlorination agent and its preparation and use method. [0002] technical background [0003] In recent years, the exploitation of many oilfields in the world has been in the middle and late stages, and the properties and exploitation conditions of crude oil have deteriorated. In order to maintain crude oil production, various oil recovery additives have been widely used, many of which contain organic chlorides, such as: containing trichloride Wax remover for chlorinated hydrocarbons such as ethane, methyl chlorosilane water blocking agent, hydrochloric acid-fluorine acidifying agent, quaternary ammonium-ammonium chloride compound stabilized clay agent, etc. These organic chlorides are insoluble in water and have good thermal stability, so it is difficult to remove them by electric desalination. The presence of organic chlorides will seriously af...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G29/02
CPCC10G29/02C10G2300/1037C10G2300/202
Inventor 刘影严斌叶世春熊靓
Owner CESTOIL IND SERVICES SHENZHEN CO LTD
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