Cuprous chloride-modified honeycomb activated carbon adsorbing material and preparation method thereof

A honeycomb activated carbon, cuprous chloride technology, applied in chemical instruments and methods, separation methods, other chemical processes, etc., can solve the problems of low air velocity of the treated gas, no investigation of conversion adsorption, etc., to achieve increased adsorption capacity and cost. The effect of low and high adsorption rate

Inactive Publication Date: 2011-04-06
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The activated carbon prepared by this invention has the best adsorption performance on H2S and VOCs, and has better comprehensive adsorption performance on various harmful gases, but the space velocity of the treated gas is low and the conversion of NO is not investigated. Adsorption

Method used

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  • Cuprous chloride-modified honeycomb activated carbon adsorbing material and preparation method thereof
  • Cuprous chloride-modified honeycomb activated carbon adsorbing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: Cut 200 holes / square inch of activated carbon into a cylinder with a diameter of 16mm and a height of 50mm, and dry it in an oven at 120°C for 1h. Prepare 20% cuprous chloride solution 2.5ml. Take Cu + :NH 3 + =1:4 ratio, add ammonia water to completely dissolve cuprous chloride;

[0023] Place the dried activated carbon in the solution and impregnate it for 1 hour; then take out the activated carbon and dry it in an oven at 120°C for 2 hours.

[0024] Take Cu + : Oxidant = 1:2 ratio to prepare potassium permanganate solution, immerse the dried activated carbon in the oxidant solution for 1 hour, and then dry it in an oven at 120°C for 2 hours to obtain modified activated carbon.

Embodiment 2

[0025] Example 2: Cut 200 holes / square inch of activated carbon into a cylinder with a diameter of 16mm and a height of 50mm, and dry it in an oven at 120°C for 1h. Prepare 20% cuprous chloride solution 2.5ml. Take Cu + :NH 3 + =1:2 ratio, add ethylenediamine, completely dissolve cuprous chloride;

[0026] Place the dried activated carbon in the solution and impregnate it for 1 hour; then take out the activated carbon and dry it in an oven at 120°C for 2 hours.

[0027] Take Cu + : Oxidant = 1:2 ratio to prepare potassium permanganate solution, immerse the dried activated carbon in the oxidant solution for 1 hour, and then dry it in an oven at 120°C for 2 hours to obtain modified activated carbon.

Embodiment 3

[0028] Example 3: Cut 50 holes / square inch of activated carbon into a cylinder with a diameter of 16mm and a height of 50mm, and dry it in an oven at 120°C for 1h. Prepare 20% cuprous chloride solution 2.5ml. Take Cu + :NH 3 + =1:2 ratio, add ammonia water to completely dissolve cuprous chloride;

[0029] Place the dried activated carbon in the solution and impregnate it for 1 hour; then take out the activated carbon and dry it in an oven at 120°C for 2 hours.

[0030] Take Cu + : Oxidant = 1:2 ratio to prepare ferric chloride solution, immerse the dried activated carbon in the oxidant solution for 1 hour, and then dry it in an oven at 120°C for 2 hours to obtain modified activated carbon.

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Abstract

The invention discloses a method for preparing cuprous chloride-modified honeycomb activated carbon for absorbing nitric oxides (NOx less than or equal to 50ppm) with high efficiency normal temperature and normal pressure. In the invention, two times of isovolumetric impregnation are adopted for modifying honeycomb activated carbon. Firstly, cuprous chloride mixed solution using an amine-containing solvent is used as a modifier, and the cuprous chloride mixed solution is loaded on a carrier by isovolumetric impregnation; and secondly, the carrier is dried, and oxidizing activation is performed by isovolumetric impregnation with a strong oxidant solution. The honeycomb activated carbon has the characteristics of high NOx conversion and absorption efficiency, high absorption capacity, low cost, simple preparation process and the like.

Description

Technical field [0001] The invention involves a honeycomb activated carbon absorbing material and its preparation method, especially a chlorine chloride copper -modified honeycomb activated carbon absorbing material and its preparation method. Background technique [0002] Among various air pollutants, NO X The pollution and the harm caused by it cannot be ignored.NOX mostly comes from fuel burning, namely car exhaust, industrial kiln discharge, etc.The main composition of NOX is NO, which is slowly oxidized into brown -red nO in the atmosphere. 2 EssenceNOX is the main pollutant that forms a sour rain and acid mist. It can form photochemical smoke with hydrocarbons and also participate in the destruction of the ozone layer.Nitrogen oxides mainly invade the body in the deep into the deep part of the respiratory trail and alveoli, which has a strong stimulation and corrosion effect on lung tissue, causing pulmonary edema.High -concentration nitric oxide can also turn the oxygen an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/32B01D53/04
Inventor 张豪杰姚炜刘洋周洁眭艳辉何丹农
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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