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Preparation method of loaded type antichlor

A dechlorination agent, load-type technology, applied in the field of preparation of load-type dechlorination agent, can solve the problems of complex dechlorination process, restrictions on the industrial application of dechlorination agent, and unsatisfactory dechlorination effect

Active Publication Date: 2016-08-24
WUHAN TEXTILE UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Although the above reports have done some research on dechlorination, there are still some shortcomings in the dechlorination of light oil, such as complicated dechlorination process, unsatisfactory dechlorination effect, and difficult product separation in liquid phase dechlorination, which restrict the dechlorination process. Industrial Application of Agents

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  • Preparation method of loaded type antichlor
  • Preparation method of loaded type antichlor

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Experimental program
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Effect test

Embodiment 1

[0034] The concrete steps of the preparation method of loaded type dechlorination agent of the present invention are as follows:

[0035] (1) Activated carbon dehydration:

[0036] Put activated carbon in an oven and dehydrate at 120°C for 3 hours;

[0037] (2) Activated carbon activation:

[0038] The activated carbon after dehydration is added in the KOH solution with a concentration of 50wt%, and the mass percentage of the activated carbon in the KOH solution is 10%; then activated for 120min, the activated activated carbon is washed with water until the lotion is neutral, and then placed in an oven for 120 Dry at ℃ for 2 hours;

[0039] (3) load dechlorination agent:

[0040] The activated carbon after step (2) is added into the dechlorinating agent TC-F solution with a concentration of 15wt%, and the mass percentage of activated carbon in the TC-F solution is 30%; the soaking time is 1h; after the soaking treatment, filter and load TC -F activated carbon was dried at ...

Embodiment 2

[0044] The concrete steps of the preparation method of loaded type dechlorination agent of the present invention are as follows:

[0045] (1) Activated carbon dehydration:

[0046] Put activated carbon in an oven and dehydrate at 180°C for 1 hour;

[0047] (2) Activated carbon activation:

[0048] The activated carbon after dehydration is added to the KOH solution with a concentration of 25wt%, and the mass percentage of the activated carbon in the KOH solution is 30%; then activated for 15 minutes, the activated activated carbon is washed with water until the lotion is neutral, and then placed in an oven for 180 Dry at ℃ for 0.5h; (3) load dechlorination agent:

[0049] The activated carbon after step (2) is added into the dechlorination agent TC-F solution with a concentration of 90wt%, and the mass percentage of activated carbon in the TC-F solution is 10%; the soaking time is 24h; after the soaking treatment, filter and load TC - The activated carbon of F was dried at 1...

Embodiment 3

[0053] The concrete steps of the preparation method of loaded type dechlorination agent of the present invention are as follows:

[0054] (1) Activated carbon dehydration:

[0055] Put activated carbon in an oven and dehydrate at 150°C for 2 hours;

[0056] (2) Activated carbon activation:

[0057] The activated carbon after dehydration is added into the KOH solution with a concentration of 10wt%, and the mass percentage of the activated carbon in the KOH solution is 20%; then activated for 60 minutes, the activated activated carbon is washed with water until the lotion is neutral, and then placed in an oven for 150 Drying treatment at ℃ for 1h;

[0058] (3) load dechlorination agent:

[0059] The activated carbon after step (2) is added into the dechlorination agent TC-F solution with a concentration of 45wt%, and the mass percentage of activated carbon in the TC-F solution is 20%; the soaking time is 12h; after the soaking treatment, filter and load TC - The activated ca...

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Abstract

The invention discloses a preparation method of a loaded type antichlor. According to the preparation method disclosed by the invention, activated carbon loaded with TC-F is prepared by adopting an impregnation method and is used for removing organic chlorides in light oil. It can be seen from an infrared spectroscopic analysis diagram and a scanning electron microscope measurement analysis result that after KOH is used for activating, the proportion of an ash substance in the activated carbon is reduced, so that pore passages of the activated carbon are sufficiently exposed, or the ash substance mixed in the activated carbon is dissolved, so that generation of new pore passages is promoted. The dechlorinating effect of the activated carbon loaded with the TC-F is superior to that of unloaded activated carbon; the total load rate of the activated carbon which is firstly activated by the KOH and then is loaded with the TC-F is higher than a sample only unloaded with the TC-F, and a dechlorinating effect is also better. An experimental result shows that the dechlorinating efficiency of the loaded type antichlor prepared by the preparation method reaches 94.84 percent.

Description

technical field [0001] The invention relates to the technical field of dechlorination of oil products, in particular to a preparation method of a loaded dechlorination agent. Background technique [0002] Chlorine impurities in light oil (naphtha, gasoline, kerosene, aviation kerosene, diesel, etc.) will cause corrosion and other adverse effects on equipment in later industrial processing. It is relatively easy to remove to below 3mg / L in the electric desalination step. Organochlorine refers to chlorine-containing organic substances such as chlorinated alkanes, chlorinated aromatics, etc., and its sources are mainly various oilfield chemicals used in crude oil extraction. Such substances are difficult to remove by conventional methods. In the post-treatment process of light oil, organic chlorides are decomposed into HCl, causing severe corrosion in pipelines such as distillation units where water exists. Organochlorine will bring many adverse effects during oil processing,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C10G25/00
CPCB01J20/20B01J2220/4806C10G25/003
Inventor 夏明桂杨霄夏广王琦吴剑虹薛志勇陈飞飞李素悦邓国伟李锐张腊梅王彩凤
Owner WUHAN TEXTILE UNIV
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