CN102179164B - Desulfurizing and denitrifying agent for smoke gas - Google Patents
Desulfurizing and denitrifying agent for smoke gas Download PDFInfo
- Publication number
- CN102179164B CN102179164B CN2011100738252A CN201110073825A CN102179164B CN 102179164 B CN102179164 B CN 102179164B CN 2011100738252 A CN2011100738252 A CN 2011100738252A CN 201110073825 A CN201110073825 A CN 201110073825A CN 102179164 B CN102179164 B CN 102179164B
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- Prior art keywords
- desulfurizing
- carbonate
- smoke gas
- flue gas
- oxide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a smoke gas catalyst capable of simultaneously realizing desulfurization and denitrification, which aims to provide a desulfurizing and denitrifying agent for CTR-ultraviolet radiation smoke gas capable of reducing the investment and operation costs of the device and simultaneously efficiently removing the NO, NO2 and SO2 in the smoke gas. The moke gas desulfurizing and denitrifying catalyst provided by the invention may comprise the following components according to fractional ratio: 40-100% of calcium-based imvite, 0-40% of calcium oxide, 0-20% of iron oxide, 0-30% of carbonate and 0-10% of titanium dioxide, wherein the iron oxide is one or more types of ferrous oxide, iron sesquioxide and ferroferric oxide, and the carbonate is one or more types of calcium carbonate and magnesium carbonate. The desulfurizing and denitrifying agent for CTR-ultraviolet radiation smoke gas is not only suitable for the flue gas desulfurization of a new boiler but also particularly suitable for the improvement in order to construct a combustion device.
Description
Technical field;
The present invention relates to a kind of desulfurization removing nitric agent, particularly design a kind of flue gas desulfuration and denitrification agent
Background technology:
The desulfurizing agent that coal-burning power plant etc. use traditionally mainly is that lime stone and calcium hydroxide are the master.Such as the Wet Flue Gas Desulfurization Technology of the LIFAC method flue gas desulfurization technique of Finland, U.S. ABB AB and Summary of Semi-dry Flue Gas Desulfurization (NID system) etc.Use NH is also arranged in addition
3As the technology of desulfurizing agent, such as Electron Beam Flue-gas Desulfurization Technique of Japanology etc.Although the desulfurizing agent low price that these technology adopt because sweetening process is complicated, causes the desulphurization system device very huge, operate also very complicatedly, in the reality use many restrictions are arranged.As it is large to have floor space, and chemical feeding quantity is large, and one-time investment such as reaches at the shortcomings.These technology can not realize reaching simultaneously the purpose of denitrogenation simultaneously, and this is disadvantageous to the transformation with the construction combustion apparatus undoubtedly.
Summary of the invention:
The purpose of this invention is to provide and a kind ofly reduce equipment investment and operating cost or effectively drag except NO, NO in the flue gas simultaneously
2, SO
2The flue gas desulfuration and denitrification agent.
Extension desulfurization removing nitric provided by the present invention agent comprises following component:
Calcium-base montmorillonite 40-100
Calcium oxide 0-40
Ferriferous oxide 0-20
Carbonate 0-30
Titanium dioxide 0-10
Described ferriferous oxide is one or more in ferrous oxide, di-iron trioxide, the tri-iron tetroxide.Described carbonate is that carbonic acid is one or more in calcium carbonate, the magnesium carbonate.
For reaching best effects, each components by weight of described desulfurization removing nitric agent is
Calcium-base montmorillonite 40-80
Calcium oxide 5-40
Ferriferous oxide 5-20
Carbonate 2.5-30
Titanium dioxide 2.5-10
Each components by weight of described desulfurization removing nitric agent is preferably
Calcium-base montmorillonite 50
Calcium oxide 15
Ferriferous oxide 15
Carbonate 15
Titanium dioxide 5
Described flue gas desulfuration and denitrification agent, its granularity are generally between the 100-300 order.
The flue gas desulfuration and denitrification agent of telling, catalyst are titanium dioxide, and weight fraction is 2.5-10.
Above-mentioned desulfurization removing nitric agent can be according to the method preparation of the direct mixing of selected component.
Desulfurization removing nitric agent of the present invention can significantly improve the desulfurization removing nitric effect if add ultraviolet radiation in use.The advantages such as the present invention can realize simultaneously flue gas desulfuration and denitrification is belonged to dry denitrogenation in method, therefore need not to be equipped with the devices such as pulping system, and it is simple to have equipment, and dosing is easy can be saved relevant cost in a large number.The agent of this desulfurization removing nitric directly can be sprayed into during use during the back-end ductwork cigarette rises, mix with flue gas, with ultraviolet ray flue gas be carried out irradiation simultaneously.Can produce in this course free radical and the active atomic of a large amount of activity, and heterogeneous reaction occurs, NO, NO
2, SO
2Be nitrate and sulfate Deng substance oxidation, thereby reach the purpose of desulfurization removing nitric.Studies show that under suitable power and metering NO, NO
2, SO
2Removal efficiency Deng material can reach more than 90%.
Desulfurization removing nitric agent removal efficiency provided by the present invention is high, reactivity is strong, operating cost is low, the equipment needed thereby gross investment is few, floor space is little, require system architecture simple, easy and simple to handle, not only be applicable to the flue gas desulfurization of newly constructed boiler, also be specially adapted to build the transformation of combustion apparatus.
The specific embodiment
Example:With synthesis of air as carrier gas, with desulfurization removing nitric agent (calcium-base montmorillonite 50 of the present invention; Calcium oxide 15; Ferriferous oxide 15; Carbonate 15; Titanium dioxide 5) place reactor, and with simulated flue gas (SO
2Be 200ppm, NOx(NO2+NO) be 150ppm) fully mix contact, under the irradiation of ultraviolet light, removal efficiency all reaches more than 90%, reaches the simultaneously purpose of desulfurization removing nitric.
Claims (4)
1. flue gas desulfuration and denitrification agent is characterized in that: described flue gas desulfuration and denitrification agent consisting of by weight:
2. flue gas desulfuration and denitrification agent according to claim 1 is characterized in that: described carbonate is one or more in calcium carbonate, the magnesium carbonate.
3. flue gas desulfuration and denitrification agent according to claim 1 is characterized in that: described flue gas desulfuration and denitrification agent consisting of by weight:
4. according to claim 1-3 arbitrary described flue gas desulfuration and denitrification agent is characterized in that: described flue gas desulfuration and denitrification agent granularity is between the 100-300 order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100738252A CN102179164B (en) | 2011-03-25 | 2011-03-25 | Desulfurizing and denitrifying agent for smoke gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100738252A CN102179164B (en) | 2011-03-25 | 2011-03-25 | Desulfurizing and denitrifying agent for smoke gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102179164A CN102179164A (en) | 2011-09-14 |
| CN102179164B true CN102179164B (en) | 2013-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100738252A Expired - Fee Related CN102179164B (en) | 2011-03-25 | 2011-03-25 | Desulfurizing and denitrifying agent for smoke gas |
Country Status (1)
| Country | Link |
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| CN (1) | CN102179164B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836621A (en) * | 2012-09-28 | 2012-12-26 | 浙江商达环保有限公司 | Flue gas desulfurizing agent and preparation method thereof |
| CN105126563B (en) * | 2015-08-24 | 2017-11-28 | 秦皇岛玻璃工业研究设计院 | The desulphurization denitration medium and desulphurization denitration apparatus and method of a kind of flue gas of glass melting furnace |
| CN105854579A (en) * | 2016-05-10 | 2016-08-17 | 湖州荣大环境科技有限公司 | Flue gas treatment technology and flue gas treatment equipment for textile printing and dyeing setter |
| CN106178863A (en) * | 2016-08-16 | 2016-12-07 | 胡安平 | A kind of desulfurization denitration method of boiler smoke |
| CN109126847B (en) * | 2018-08-04 | 2021-10-15 | 山东迅达化工集团有限公司 | Preparation method of iron oxide and titanium dioxide composite sulfur recovery catalyst |
| CN114011234B (en) * | 2021-11-10 | 2024-04-23 | 山东鲁碧建材有限公司 | Dry desulfurization method for treating low-temperature flue gas |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692425A (en) * | 1985-07-05 | 1987-09-08 | Sud-Chemie Aktiengesellschaft | Catalyst for reducing the nitrogen oxide content of flue gases |
| CN1468912A (en) * | 2002-07-18 | 2004-01-21 | 伟 李 | Nano size montmorillonoid and its prepn |
| CN1565708A (en) * | 2003-06-12 | 2005-01-19 | 北京大学 | Flue gas denitrifying and desulfurizing agent |
| CN101390876A (en) * | 2008-10-30 | 2009-03-25 | 浙江大学 | Preparation method of natural montmorillonite emergency haemostatic for external use |
-
2011
- 2011-03-25 CN CN2011100738252A patent/CN102179164B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692425A (en) * | 1985-07-05 | 1987-09-08 | Sud-Chemie Aktiengesellschaft | Catalyst for reducing the nitrogen oxide content of flue gases |
| CN1468912A (en) * | 2002-07-18 | 2004-01-21 | 伟 李 | Nano size montmorillonoid and its prepn |
| CN1565708A (en) * | 2003-06-12 | 2005-01-19 | 北京大学 | Flue gas denitrifying and desulfurizing agent |
| CN101390876A (en) * | 2008-10-30 | 2009-03-25 | 浙江大学 | Preparation method of natural montmorillonite emergency haemostatic for external use |
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| CN102179164A (en) | 2011-09-14 |
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Effective date of registration: 20161226 Address after: 225400 Jiangsu Province, Taixing City Industrial Park Xiangrong Road No. 18 Patentee after: JIANGSU QIANJING INFORMATION TECHNOLOGY CO., LTD. Address before: 210044 Nanjing Ning Road, Jiangsu, No. six, No. 219 Patentee before: Nanjing IT Engineering Univ. |
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Effective date of registration: 20180111 Address after: 210044 Nanjing Ning Road, Jiangsu, No. six, No. 219 Patentee after: Nanjing University of Information Science and Technology Address before: 225400 Jiangsu Province, Taixing City Industrial Park Xiangrong Road No. 18 Patentee before: JIANGSU QIANJING INFORMATION TECHNOLOGY CO., LTD. |
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Granted publication date: 20130227 Termination date: 20180325 |