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A synergistic removal agent for flue gas multi-pollutants used in dense phase dry tower process

A technology for removing agents and pollutants, applied in gas treatment, air quality improvement, membrane technology, etc., can solve the problems of high price and low efficiency, and achieve the effects of reducing preparation costs, reducing costs, and enhancing adsorption performance

Active Publication Date: 2018-05-18
BEIJING BEIKE ENVIRONMENTAL ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a flue gas multi-pollutant synergistic remover used in the dense phase dry tower process to solve the problems of high price and relatively low efficiency in the process of industrial flue gas multi-pollutant synergistic treatment. The invention is suitable for the dense coherent dry tower process

Method used

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  • A synergistic removal agent for flue gas multi-pollutants used in dense phase dry tower process
  • A synergistic removal agent for flue gas multi-pollutants used in dense phase dry tower process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] First, take 10 kg of coke powder with a particle size of 3 mm, roast it in a rotary roasting furnace at 200 ° C, 50 rpm for 30 minutes, then open the furnace door, cool it for 1 hour, and the temperature of the coke powder will drop to 98 ° C. Then close the furnace door again, and in the rotary roaster, pass into the nitrogen with a purity of 99.99%. When the nitrogen content in the rotary roaster reaches more than 99%, stop nitrogen filling, and close the rotary roaster door. At this time, the temperature in the furnace is displayed as 90°C, adjust the rotation speed to 200r / min, and start the surface treatment of the coke powder. After 1 hour of treatment in a nitrogen environment, continue to raise the temperature of the rotary roaster to 500°C, at a rotation speed of 50r / min Calcined in a rotary roaster for 30min. After closing the roasting furnace for 1 hour, open the furnace door, and after another 1 hour, the temperature in the furnace dropped to 102° C., and th...

Embodiment 2

[0023] First, take 10 kg of coke powder with a particle size of 2 mm, roast it in a rotary roasting furnace at 200 ° C, 50 rpm for 30 minutes, then open the furnace door, and cool it for 1 hour, and the temperature of the coke powder will drop to 98 ° C. Then close the furnace door again, and in the rotary roaster, pass into the nitrogen with a purity of 99.99%. When the nitrogen content in the rotary roaster reaches more than 99%, stop nitrogen filling, and close the rotary roaster door. At this time, the temperature in the furnace is displayed as 90°C, adjust the speed to 200r / min, and start the surface treatment of the coke powder. After 1 hour of treatment in a nitrogen environment, continue to raise the temperature of the roasting furnace to 500°C. Calcined in a rotary roaster for 30 minutes. After closing the roasting furnace for 1 hour, open the furnace door, and after another 1 hour, the temperature in the furnace dropped to 102° C., and the steps of filling nitrogen g...

Embodiment 3

[0025] First, take 10 kg of coke powder with a particle size of 2 mm, roast it in a rotary roasting furnace at 200 °C and 100 rpm for 60 minutes, then open the furnace door, and cool it for 1 hour, and the temperature of the coke powder will drop to 98 °C. Then close the furnace door again, and in the rotary roaster, pass into the nitrogen with a purity of 99.99%. When the nitrogen content in the rotary roaster reaches more than 99%, stop nitrogen filling, and close the rotary roaster door. At this time, the temperature in the furnace is displayed as 90°C, adjust the speed to 200r / min, and start the surface treatment of the coke powder. After 1 hour of treatment in a nitrogen environment, continue to raise the temperature of the roasting furnace to 500°C. Calcined in a rotary roaster for 60 minutes. After closing the roasting furnace for 1 hour, open the furnace door, and after another 1 hour, the temperature in the furnace dropped to 102° C., and the steps of filling nitrogen...

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Abstract

The invention provides a synergistic flue gas multi-pollutant removal agent for a dense-phase dry tower desulphurization process and belongs to the technical field of comprehensive flue gas control materials. The synergistic removal agent uses coke breeze as a raw material, surface treatment and continuous roasting are conducted on the coke breeze under a roasting, cooling and nitrogen atmosphere, and finally modified and activated coke breeze is prepared, namely the synergistic removal agent is obtained. By the adoption of the synergistic flue gas multi-pollutant removal agent, desulfurization, N removal, dust removal, heavy metal removal and dioxin removal of flue gas can be simultaneously achieved, the costs for flue gas multi-pollutant removal are effectively reduced, waste recycle of the coke breeze is also performed, and regeneration steps are omitted. Surface treatment and activation are conducted on the coke breeze by filling N2, the problem that the coke breeze easily causes explosion in airtight, relatively high temperature circumstances is effectively prevented, and pit channels formed in the coke breeze surface are also effectively and evenly opened, so that the adsorption performance of the coke breeze is improved by more than 3 times. A preparation method of the removal agent is simple, the adsorption performance is excellent, the waste is turned into waste, and waste recycling is achieved.

Description

technical field [0001] The invention relates to the technical field of flue gas comprehensive treatment materials, in particular to a flue gas multi-pollutant synergistic remover used in a dense phase dry tower process. Background technique [0002] While my country's economy is developing rapidly, the control of pollutants is urgent. Smog has been a pain in the heart of every Chinese person in recent years, especially the people of Tianjin, Beijing and Hebei. Sulfur dioxide, nitrogen oxides and inhalable particulate matter are the main components of smog. Suspended particles of different particle sizes in smog have different effects on human health. The finer the particles, the greater the chance of being inhaled, the stronger the activity in the human body, and the greater the harm to the human body. Due to the frequent occurrence of smog weather, the industry standards and national standards for air pollution control are gradually improving. Especially in recent years, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20B01J20/30B01D53/81B01D53/60B01D53/64B01D53/72B01D53/02B01D49/00
CPCB01D49/00B01D53/02B01D53/60B01D53/64B01D53/72B01D53/81B01D2258/0283B01J20/20B01J2220/4887Y02A50/20
Inventor 宋存义苏伟童震松梁宝瑞常冠钦
Owner BEIJING BEIKE ENVIRONMENTAL ENG CO LTD
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