Dechlorinating agent and preparation method and application thereof

A technology of dechlorination agent and binder, which is applied in the field of dechlorination agent and its preparation, can solve the problems of low chlorine capacity and dechlorination efficiency, achieve the effects of improving chlorine capacity and dechlorination efficiency, stable structure, and improving adsorption performance

Inactive Publication Date: 2020-04-17
SHENYANG SANJUKAITE CATALYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved in the present invention is to overcome the defects that the dechlorination agent in the prior art has a relatively low chlorine capacity and dechlorination efficiency when removing organic chlorine and inorganic chlorine simultaneously, thereby providing a dechlorination agent and its Preparation method and application

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  • Dechlorinating agent and preparation method and application thereof

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Comparison scheme
Effect test

Embodiment 1

[0035] Present embodiment provides a kind of dechlorination agent, and its preparation method is as follows:

[0036] Dissolving copper nitrate trihydrate, potassium permanganate and polysorbate in water to obtain a mixed aqueous solution, the content of copper nitrate in the resulting mixed solution is 12wt%; the content of potassium permanganate is 20wt%, and the content of polysorbate is 15wt% %;

[0037] Set the specific surface area to 250m 2 / g clay with a specific surface area of ​​800m 2 / g of HY molecular sieve is mixed evenly to obtain a mixed carrier; wherein, the mass ratio of clay to molecular sieve is 1:80; then the mixed carrier is soaked in the above mixed aqueous solution at 25°C for 6 hours, the The mass ratio is 1:5, and after drying at 25°C for 12 hours, the dechlorination agent precursor can be obtained;

[0038] Mix the above-mentioned dechlorination agent precursor and cellulose sodium powder evenly, and the mass ratio of the dechlorination agent prec...

Embodiment 2

[0041] Present embodiment provides a kind of dechlorination agent, and its preparation method is as follows:

[0042] Dissolving copper nitrate trihydrate, potassium permanganate and polysorbate in water to obtain a mixed aqueous solution, the content of copper nitrate in the resulting mixed solution is 10wt%; the content of potassium permanganate is 30wt%, and the content of polysorbate is 10wt% %;

[0043] Set the specific surface area to 100m 2 / g clay with a specific surface area of ​​1000m 2 / g of β boiling molecular sieves are mixed evenly to obtain a mixed carrier; wherein, the mass ratio of clay to molecular sieve is 1:50; then the mixed carrier is immersed in the above mixed aqueous solution at 50°C for 10 hours, and the mixed carrier and the mixed aqueous solution The mass ratio is 1:8, and after drying at 50°C for 6 hours, the dechlorination agent precursor is obtained;

[0044]Mix the above-mentioned dechlorination agent precursor and aluminum sol evenly, the ma...

Embodiment 3

[0047] Present embodiment provides a kind of dechlorination agent, and its preparation method is as follows:

[0048] Dissolve copper nitrate trihydrate, potassium permanganate and polysorbate in water to obtain a mixed aqueous solution, the content of copper nitrate in the resulting mixed solution is 20wt%; the content of potassium permanganate is 8wt%, and the content of polysorbate is 8wt% %;

[0049] Set the specific surface area to 500m 2 / g clay with a specific surface area of ​​100m 2 The ZSM-5 molecular sieve / g is mixed uniformly to obtain a mixed carrier; wherein, the mass ratio of clay to molecular sieve is 1:100; then the mixed carrier is immersed in the above mixed aqueous solution at 30°C for 1 hour, and the mixed carrier and the mixed The mass ratio of the aqueous solution is 1:10, and after drying at 30°C for 1 hour, the dechlorination agent precursor is obtained;

[0050] Mix the above-mentioned dechlorination agent precursor and silica sol evenly, the mass ...

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Abstract

The invention provides a dechlorinating agent as well as a preparation method and application thereof. The dechlorinating agent comprises a binder and a carrier, and also comprises 3.3-6.6 wt% of copper oxide and 5-25wt% of potassium permanganate, based on the total mass amount of the dechlorinating agent. Manganese atoms in potassium permanganate contain a large number of empty orbits, and chlorine atoms in organochlorine contain three pairs of lone electrons, so that adsorption and removal on organochlorine are improved; moreover, the oxidability of potassium permanganate can change the contents of acidic groups and basic groups on the surface of the carrier, so that the chemical properties of the surface of the carrier are changed, and the adsorption performance of the carrier to organochlorine and hydrogen chloride is improved; on the other hand, potassium permanganate can generate a synergistic effect with copper oxide and an adhesive, so that the affinity between each component and the carrier is improved, the loss of each component in the use process is reduced, and the chlorine capacity and the dechlorination efficiency of the dechlorinating agent are further improved; agglomeration among metal ions can be prevented, so that the metal ions are kept in a dispersed state on the surface of the carrier; and the chlorine capacity and the dechlorination efficiency of the dechlorinating agent are further improved.

Description

technical field [0001] The invention relates to the technical field of petrochemical industry, in particular to a dechlorination agent and its preparation method and application. Background technique [0002] Catalytic reforming is one of the important production processes in the field of oil refining and petrochemical industry. It mainly converts naphthenes and alkanes into aromatics or isoparaffins under the action of bifunctional catalysts. At present, catalytic reforming reactions use catalysts containing halogen chlorine as the acidic component. During the production process, the chlorine content in the catalyst is gradually lost due to the influence of water in the reaction system. In order to ensure the activity of the catalyst and achieve the best balance of water and chlorine, it is necessary to continuously inject water and organic chlorides. Water and chlorine lost during this process accumulate in the reformate. [0003] Chlorine in the reformed oil will be con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/18B01J20/30C10G25/03
CPCB01J20/04B01J20/06B01J20/12B01J20/18B01J2220/42B01J2220/4806B01J2220/4812C10G25/03C10G2300/201
Inventor 迟莹单红飞陈玲玲
Owner SHENYANG SANJUKAITE CATALYST
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