Treating agent for organochlorine-containing waste gas, and preparation method and application thereof

A treatment agent and organochlorine technology, which is applied in the field of preparation and treatment agent containing organochlorine waste gas, can solve the problems of increasing the complexity of organochlorine, reducing the dechlorination capacity, and reducing the conversion capacity of dechlorination agent to organochlorine, etc.

Active Publication Date: 2020-06-05
山东迅达化工集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For chlorine such as 500mg/m 3 The common waste gas containing organic chlorine is treated at 250-400°C by using calcium oxide as the main component and adding iron, manganese, copper and other oxides. It is more convenient and easy in many cases. Chlorine in chlorine is transformed into calcium chloride and is trapped in the dechlorination agent, but chlorine-free organic matter generally still exists in the exhaust gas after treatment. When the chlorine-free organic matter exceeds the standard, it still cannot be dischar

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Prepare the treatment agent as follows:

[0022] A. Add 90kg of water to the reaction kettle, put in 25kg of ferrous sulfate and 10kg of manganese sulfate, heat up to 50°C and stir to dissolve, put in 12kg of metatitanic acid for beating while stirring, gradually add light calcium carbonate powder to react, heat up to 85°C, and use pH3 .5 As the end point of the feeding reaction control of the superfine heavy calcium carbonate powder, maintain the reaction temperature for aging 3hr, pH3.5-3.7 during the aging process and after completion, to prepare the slurry containing calcium sulfate fiber;

[0023] B. Put the remaining light calcium carbonate powder (total 75kg together with step A) into the kneader, add 1.5kg of scallop powder and mix evenly, gradually sprinkle into the slurry containing calcium sulfate fiber, knead and extrude it into outer Strips with a diameter of 3 mm;

[0024] C. Extruded strips were dried at 120°C for 5 hours, and 2 kg of dried strips were r...

Embodiment 2

[0026] The treatment agent was prepared by roasting 2 kg of the dried strips in Step C of Example 1 at 420° C. under air conditions for 4 hours.

Embodiment 3

[0028] The rest of the dried strips in Step C of Example 1 were calcined for 2.5 hours in an industrial furnace at 450°C under air conditions to prepare the treatment agent.

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PUM

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Abstract

The invention provides a treating agent for waste gas containing low-concentration organochlorine as well as a preparation method and application of the treating agent. The treating agent takes lightcalcium carbonate as a main component; oxides of iron, manganese and titanium are added; fibrous calcium sulfate is used as a reinforcing agent; the treating agent has high organochlorine hydrolysis activity and organic component combustion activity, and can achieve dechlorination of organochlorine compounds and catalytic combustion of byproduct chlorine-free organic components under the temperature condition of 300-350 DEG C, so that organochlorine is converted into calcium chloride, carbon dioxide and water, up-to-standard emission is easy to achieve, and the organochlorine conversion capacity and the dechlorination capacity of the treating agent are not affected by carbon dioxide contained in waste gas. The raw materials of the dechlorinating agent are cheap, the cost of the dechlorinating agent is low, and the dechlorinating agent is basically non-toxic and harmless after being used and is easy to scrap and treat. The treating agent for organochlorine-containing waste gas is prepared from the following raw materials in parts by mass: 60 to 80 parts of light calcium carbonate, 10 to 15 parts of ferrous sulfate, 5 to 10 parts of manganese sulfate and 5 to 15 parts of metatitanicacid.

Description

technical field [0001] The invention belongs to the technical field of waste gas treatment containing organic chlorine, and in particular relates to a treatment agent for waste gas containing organic chlorine, a preparation method and an application thereof. Background technique [0002] Chlorine-containing organic compounds, also known as organochlorine, are an important class of industrial raw materials, such as chlorinated alkanes and chlorinated aromatics, which are widely used as raw materials for chemical reactions, solvents, or additives for many processing aids; Degradability and toxicity, organic chlorine in waste gas, waste liquid, and waste must be properly treated, transformed, and removed before it can be discharged, disposed or landfilled; among them, the treatment of organic chlorine in waste gas is the most important technical field, because waste liquid, The organochlorine in the waste is driven into the exhaust gas by air stripping and thermal volatilizatio...

Claims

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Application Information

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IPC IPC(8): B01J23/889F23G7/07B01D53/86B01D53/70
CPCB01J23/8892F23G7/07B01D53/8662F23G2209/14F23G2209/142
Inventor 卫国锋胡文宾杨金帅崔国栋邢西猛崔旭浩
Owner 山东迅达化工集团有限公司
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