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

A technology of honeycomb activated carbon and cuprous chloride, which is applied in the direction of chemical instruments and methods, and other chemical processes, can solve the problems of no investigation of conversion adsorption and low space velocity of the treated gas, and achieve low cost, high adsorption capacity, and high adsorption capacity. The effect of improving efficiency

Inactive Publication Date: 2012-12-19
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

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 relates to a honeycomb activated carbon adsorption material and a preparation method thereof, in particular to a cuprous chloride modified honeycomb activated carbon adsorption material and a preparation method thereof. Background technique [0002] Among various air pollutants, NO X pollution and the harm it causes cannot be ignored. Most of NOx comes from fuel combustion, that is, vehicle exhaust, industrial kiln emissions, etc. The main component of NOx is NO, which is slowly oxidized in the atmosphere into brown-red NO with a pungent odor 2 . NOx is the main pollutant that forms acid rain and acid mist, and can form photochemical smog with hydrocarbons, and also participates in the destruction of the ozone layer. Nitrogen oxides are harmful to the human body and mainly invade the bronchioles and alveoli in the deep part of the respiratory tract, which can strongly stimulate and corrode lung tissue and cause pulmonary edema. High ...

Claims

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Application Information

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Patent Type & Authority Patents(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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