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Regeneration liquid of cellular catalyst and regeneration method thereof

A technology of honeycomb catalyst and regeneration liquid, which is applied in the direction of catalyst regeneration/reactivation, chemical instruments and methods, physical/chemical process catalysts, etc. It can solve the problem that the recovery ability of catalyst activity has not been significantly improved, and achieve a high recovery rate of denitrification activity , Supplementary effect good effect

Inactive Publication Date: 2015-02-25
TIANHE BAODING ENVIRONMENTAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the activity recovery ability of the catalyst after regeneration in this patent has not been significantly improved

Method used

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preparation example Construction

[0050] In the present invention, the preparation method of the regeneration solution preferably includes the following steps:

[0051] a) mixing a penetration enhancer, an emulsifier, a surfactant and deionized water to obtain a solution A;

[0052] b) Ammonium metavanadate, ammonium paratungstate, and a cosolvent are mixed with the solution A to obtain a solution B; the cosolvent is acetamide;

[0053] c) Mixing the solution B with an acid and aging to obtain a regenerated solution.

[0054] The present invention mixes penetration enhancer, emulsifier, surfactant and deionized water to obtain solution A. In the present invention, the penetration enhancer preferably includes one or more of JFC type fatty alcohol polyoxyethylene ether, JFC-1 type fatty alcohol polyoxyethylene ether and JFC-2 type fatty alcohol polyoxyethylene ether, More preferred is JFC-1 fatty alcohol polyoxyethylene ether. The present invention has no special limitation on the source of the penetration enha...

Embodiment 1

[0087] Add 1wt‰ JFC-1 type fatty alcohol polyoxyethylene ether, 1wt‰ TX-10 type alkylphenol polyoxyethylene ether and 0.2wt% AEO type fatty alcohol polyoxyethylene ether into deionized water, stir for 5min until uniform to obtain solution A; add 1wt% ammonium metavanadate, 2wt% ammonium paratungstate and 1wt% acetamide to solution A, stir for 35 minutes until uniform, obtain solution B; add nitric acid to solution B to adjust the pH value is 5, continue to stir for 5 minutes until uniform, and age for 2 hours to obtain a regeneration solution.

Embodiment 2

[0089] Add 2wt‰ JFC-1 type fatty alcohol polyoxyethylene ether, 2wt‰ TX-10 type alkylphenol polyoxyethylene ether and 0.4wt% AEO type fatty alcohol polyoxyethylene ether into deionized water, stir for 5min until uniform to obtain solution A; add 2wt% ammonium metavanadate, 4wt% ammonium paratungstate and 2wt% acetamide to solution A, stir for 35 minutes until uniform, obtain solution B; add nitric acid to solution B to adjust the pH The value is 5.5, continue to stir for 8 minutes until uniform, and age for 2 hours to obtain a regeneration solution.

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PUM

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Abstract

The invention provides a regeneration liquid of a cellular catalyst and a regeneration method thereof. The regeneration liquid comprises 0.1-0.5wt% of a penetration promoter, 0.1-0.5wt% of an emulsifier, 0.02-0.1wt% of a surfactant, 0.1-0.5wt% of a cosolvent, 0.1-0.5wt% of ammonium metavanadate, 0.2-1wt% of ammonium paratungstate and the balance deionized water and acid. The cosolvent is acetamide. The regeneration liquid has good effects of supplement of cellular catalyst active ingredients. The regenerated cellular catalyst has a high denitration activity recovery rate. An experiment result shows that the regenerated cellular catalyst has denitration efficiency more than 90% and an activity recovery rate of 106-110%.

Description

technical field [0001] The invention relates to the technical field of catalyst regeneration, and more specifically relates to a regeneration solution and a regeneration method for a honeycomb catalyst. Background technique [0002] Nitrogen oxide is one of the main harmful substances that pollute the atmosphere. Its main source is coal combustion. my country is a country where coal is the main energy source. With the increasing pollution of nitrogen oxide emissions, how to economically and effectively treat nitrogen oxides It is of great practical significance to carry out denitrification treatment. [0003] At present, Selective Catalytic Reduction (hereinafter referred to as SCR) denitrification technology is widely used in the denitrification system of coal-fired power plants due to its efficient and reliable denitrification performance. 30% to 50% of the total investment, and its performance directly affects the overall denitrification effect of the SCR denitrification ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J38/68
Inventor 王丽娜
Owner TIANHE BAODING ENVIRONMENTAL ENG
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