CN102921260A - Device and method for removing mercury in waste gas - Google Patents
Device and method for removing mercury in waste gas Download PDFInfo
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- CN102921260A CN102921260A CN2012104481317A CN201210448131A CN102921260A CN 102921260 A CN102921260 A CN 102921260A CN 2012104481317 A CN2012104481317 A CN 2012104481317A CN 201210448131 A CN201210448131 A CN 201210448131A CN 102921260 A CN102921260 A CN 102921260A
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- gas
- filter
- waste gas
- molecular sieve
- adsorption tower
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- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a device for removing mercury in waste gas. The device comprises a static dust remover, a precision filter, a molecular sieve, an adsorption tower and a security filter. A method for removing mercury in waste gas further includes the following steps: a. separating a large amount of dust from gas through the static dust remover; b. removing fine particles in the gas through the precision filter; c. removing moisture through the molecular sieve, d. enabling the gas to pass through the adsorption tower and conducting mercury removing through adsorption of activated carbon; and e. removing carried activated carbon dust of the gas through the security filter. Based on the principle that process low is shortened and discharge requirements are met, the device and the method remove shortcomings and weak points of the existing device for removing mercury in waste gas. By optimizing the processing process of the existing device, the device is high in mercury removing efficiency, energy-saving and environment-friendly.
Description
Technical field
The present invention relates to a kind of coal-fired flue gas mercury removal device and demercuration method.
Background technology
China is world big coal country, and energy resource consumption is mainly take coal as main, and coal-fired sulfide and the Nitric Acid Oxidation compound that produces caused people's extensive concern already.In recent years, because the trace element particularly disguise that demonstrates in environmental pollution of mercury, high volatile volatile, easily animal migration, height bioconcentration and potential lasting harmfulness thereof have caused the extensive concern of international community.Current emission control to element mercury is the most extensive with the tail flue gas control technology.Although existing pollution control device can effectively remove the divalence mercury in the flue gas, not obvious to the removal effect of element mercury, removal of mercury efficient is not high.
Summary of the invention
The purpose of this invention is to provide a kind of mercury removal efficient is high, power consumption is low waste gas mercury removal device and method.
To achieve these goals, technical scheme of the present invention is as follows:
A kind of waste gas mercury removal device comprises electrostatic precipitator, accurate filter, molecular sieve, adsorption tower, security personnel's filter.The outlet of described electrostatic precipitator connects the entrance of accurate filter; The outlet of described accurate filter connects the entrance of molecular sieve; The outlet of described molecular sieve connects the entrance of adsorption tower; The outlet of described adsorption tower connects the entrance of security personnel's filter.
A kind of waste gas demercuration method may further comprise the steps:
Step a separates a large amount of dust through electrostatic precipitator from gas;
Step b, gas is removed fine particle through accurate filter;
Step c removes moisture through molecular sieve;
Steps d, gas is by adsorption tower, demercuration after charcoal absorption;
Step e, gas is through the active carbon dust of security personnel's filter except deentrainment.
The present invention satisfies emission request in principle at shortened process, and the defective that exists for present waste gas mercury removal device and weakness are improved and strengthened, and by optimizing the treatment process of existing apparatus, package unit mercury removal efficient is high, and is energy-conservation, environmental protection.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is the process chart of waste gas mercury removal device of the present invention.
The specific embodiment
As shown in Figure 1, specific embodiments of the invention, mainly may further comprise the steps: waste gas is separated a large amount of dust through electrostatic precipitator from gas, then remove fine particle more than 1 micron through accurate filter, gas solid separation is removed moisture more than 99.5% by molecular sieve, after the gas dewatering by adsorption tower, by carrying a sulfur content 18%, the active carbon layer of granularity 1.5mm removes mercury, finally by the active carbon dust of 5 microns security personnel's filters except deentrainment.
Claims (2)
1. a waste gas mercury removal device comprises electrostatic precipitator, accurate filter, molecular sieve, adsorption tower, security personnel's filter;
The outlet of described electrostatic precipitator connects the entrance of accurate filter; The outlet of described accurate filter connects the entrance of molecular sieve; The outlet of described molecular sieve connects the entrance of adsorption tower; The outlet of described adsorption tower connects the entrance of security personnel's filter.
2. waste gas demercuration method may further comprise the steps:
Step a separates a large amount of dust through electrostatic precipitator from gas;
Step b, gas is removed fine particle through accurate filter;
Step c removes moisture through molecular sieve;
Steps d, gas is by adsorption tower, demercuration after charcoal absorption;
Step e, gas is through the active carbon dust of security personnel's filter except deentrainment;
The present invention satisfies emission request in principle at shortened process, and the defective that exists for present waste gas mercury removal device and weakness are improved and strengthened, and by optimizing the treatment process of existing apparatus, package unit mercury removal efficient is high, and is energy-conservation, environmental protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104481317A CN102921260A (en) | 2012-11-09 | 2012-11-09 | Device and method for removing mercury in waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104481317A CN102921260A (en) | 2012-11-09 | 2012-11-09 | Device and method for removing mercury in waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102921260A true CN102921260A (en) | 2013-02-13 |
Family
ID=47636271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104481317A Pending CN102921260A (en) | 2012-11-09 | 2012-11-09 | Device and method for removing mercury in waste gas |
Country Status (1)
| Country | Link |
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| CN (1) | CN102921260A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521025A (en) * | 2013-11-04 | 2014-01-22 | 福建龙净环保股份有限公司 | Electrostatic fabric filter |
| CN108371873A (en) * | 2018-04-08 | 2018-08-07 | 中冶长天国际工程有限责任公司 | A kind of system for desulfuration and denitration |
| CN114405237A (en) * | 2022-03-02 | 2022-04-29 | 深圳市安驰环保科技有限公司 | Combined absorption carbon dioxide capture and compression treatment system and process |
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| US5672323A (en) * | 1995-01-26 | 1997-09-30 | The Babcock & Wilcox Company | Activated carbon flue gas desulfurization systems for mercury removal |
| US20040003716A1 (en) * | 2002-05-06 | 2004-01-08 | Nelson Sidney G. | Sorbents and methods for the removal of mercury from combustion gases |
| CN102413899A (en) * | 2009-04-23 | 2012-04-11 | 能源与环境研究中心机构 | Sorbents for the oxidation and removal of mercury |
| CN102489109A (en) * | 2011-12-09 | 2012-06-13 | 中电投远达环保工程有限公司 | Dry-type efficient and energy saving system for cleaning flue gas of multi-pollutants |
| CN102500183A (en) * | 2011-11-03 | 2012-06-20 | 中国华能集团清洁能源技术研究院有限公司 | Flue gas purification system capable of simultaneously realizing high-efficiency dust removal and mercury removal |
| CN102527177A (en) * | 2011-12-23 | 2012-07-04 | 厦门龙净环保技术有限公司 | Dust collection and mercury removal integrated electric-bag composite dust collector |
-
2012
- 2012-11-09 CN CN2012104481317A patent/CN102921260A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5672323A (en) * | 1995-01-26 | 1997-09-30 | The Babcock & Wilcox Company | Activated carbon flue gas desulfurization systems for mercury removal |
| US20040003716A1 (en) * | 2002-05-06 | 2004-01-08 | Nelson Sidney G. | Sorbents and methods for the removal of mercury from combustion gases |
| CN102413899A (en) * | 2009-04-23 | 2012-04-11 | 能源与环境研究中心机构 | Sorbents for the oxidation and removal of mercury |
| CN102500183A (en) * | 2011-11-03 | 2012-06-20 | 中国华能集团清洁能源技术研究院有限公司 | Flue gas purification system capable of simultaneously realizing high-efficiency dust removal and mercury removal |
| CN102489109A (en) * | 2011-12-09 | 2012-06-13 | 中电投远达环保工程有限公司 | Dry-type efficient and energy saving system for cleaning flue gas of multi-pollutants |
| CN102527177A (en) * | 2011-12-23 | 2012-07-04 | 厦门龙净环保技术有限公司 | Dust collection and mercury removal integrated electric-bag composite dust collector |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521025A (en) * | 2013-11-04 | 2014-01-22 | 福建龙净环保股份有限公司 | Electrostatic fabric filter |
| CN103521025B (en) * | 2013-11-04 | 2016-08-17 | 福建龙净环保股份有限公司 | A kind of electric-bag complex dust collector |
| CN108371873A (en) * | 2018-04-08 | 2018-08-07 | 中冶长天国际工程有限责任公司 | A kind of system for desulfuration and denitration |
| CN108371873B (en) * | 2018-04-08 | 2023-07-25 | 中冶长天国际工程有限责任公司 | Desulfurization and denitrification system |
| CN114405237A (en) * | 2022-03-02 | 2022-04-29 | 深圳市安驰环保科技有限公司 | Combined absorption carbon dioxide capture and compression treatment system and process |
| CN114405237B (en) * | 2022-03-02 | 2022-12-23 | 深圳市安驰环保科技有限公司 | Combined absorption carbon dioxide capture and compression treatment system and process |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130213 |