CN1123374C - Method for removing sulfur oxides from flue-gas by utilizing waste sludge of soda plant - Google Patents
Method for removing sulfur oxides from flue-gas by utilizing waste sludge of soda plant Download PDFInfo
- Publication number
- CN1123374C CN1123374C CN99112131A CN99112131A CN1123374C CN 1123374 C CN1123374 C CN 1123374C CN 99112131 A CN99112131 A CN 99112131A CN 99112131 A CN99112131 A CN 99112131A CN 1123374 C CN1123374 C CN 1123374C
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- CN
- China
- Prior art keywords
- absorption tower
- sodium carbonate
- flue gas
- clay
- flue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Treating Waste Gases (AREA)
Abstract
The present invention relates to a method for eliminating sulfur oxide in fume by waste slag of sodium carbonate plants. The present invention is characterized in that the fume and clay wash are led into a reaction vessel to sufficiently contact and react. The method of the present invention fully utilizes the clay wash for eliminating sulfur oxide in fume, has the advantages of good effect, less investment, low running cost, etc., and uses waste for treating waste.
Description
The present invention relates to a kind of white clay and processing method of harmful gases, particularly relate to a kind of utilization of Sodium Carbonate Plant white clay and the processing method of coal-fired flue-gas sulphur oxide.
Waste residue of ammonia-soda process Sodium Carbonate Plant (being commonly called as " white clay ") and flue gas sulphur oxide all are the public hazards of contaminated environment.Handle and utilization for the method that " white clay " generally taked to suit measures to local conditions, as build a dam and deposit slag, the clear liquid overflow; Marine reclamation land, clear liquid discharging; Fill the abandoned mine well; Improvement acid ground etc.Human " white clay " system building materials are also arranged, calcium, magnesium inorganic salts and compound fertilizer etc.But fail so far rationally to make full use of.For coal-fired flue gas desulfurization, generally adopt wet method, dry method or semidry method, used main solid desulfurating agent is powdered lime, lime stone or magnesia etc., but its cost is higher, and utilization rate is lower, and the obstruction that easily scabs.
The purpose of this invention is to provide a kind of method of utilizing ammonia-soda process Sodium Carbonate Plant white clay to remove the flue gas sulphur oxide, reach the purpose of the treatment of wastes with processes of wastes against one another.
Method of the present invention is characterized in that flue gas and ammonia-soda process Sodium Carbonate Plant clay wash are fed reactor, and it is fully contacted, and reacts.
Method of the present invention can make full use of " white clay ", removes the effective of flue gas sulphur oxide, has small investment, advantages such as the low and treatment of wastes with processes of wastes against one another of running cost.
Below by embodiment the present invention is described.
Certain factory uses 200 tons of coal-burning boilers, coal-fired sulfur content 1.2%, exhaust gas volumn 2.5 * 10
5Nm
3/ h, content of sulfur dioxide is 2100mg/Nm
3Flue gas and ammonia-soda process Sodium Carbonate Plant clay wash are fed the spraying absorption tower, and flue gas dynamically contacts with this clay wash of atomizing, 12 seconds holdup times, one reaction takes place to absorb therebetween, this clay wash can be prepared with seawater or fresh water, and can mix part flying dust and lime, and its weight percent solids is 10～20.Remove part oxysulfide and dust in the flue gas after absorbing a reaction, desulfurizing agent partly is converted into the sulphite and the sulfate of calcium, magnesium.Its desulfurization degree about 75%.Can take to prolong the reaction time measures such as the raising reaction speed and the secondary absorption that partly circulates for increasing operation rate.Final discharging solids should be made building materials and filler, or mixes use with flyash.
Spraying absorption tower used in the present embodiment also can be used Wen Qiulishi, material filling type, bubble type, sieve-board type, column plate type or moving bed absorption tower instead.
Claims (3)
1. a method of utilizing the Sodium Carbonate Plant white clay to remove the flue gas sulphur oxide is characterized in that flue gas and ammonia-soda process Sodium Carbonate Plant clay wash are fed reactor, and it is fully contacted, and reacts.
2. the method for claim 1 is characterized in that described reactor is spraying absorption tower, Wen Qiulishi absorption tower, material filling type absorption tower, bubbling absorption column, sieve-board type absorption tower, column plate type absorption tower or moving bed absorption tower.
3. the method for claim 1 is characterized in that described clay wash can be with seawater or fresh water preparation, and can mix part flying dust and lime that wherein the percetage by weight of solid is 10～20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99112131A CN1123374C (en) | 1999-03-29 | 1999-03-29 | Method for removing sulfur oxides from flue-gas by utilizing waste sludge of soda plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99112131A CN1123374C (en) | 1999-03-29 | 1999-03-29 | Method for removing sulfur oxides from flue-gas by utilizing waste sludge of soda plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1268387A CN1268387A (en) | 2000-10-04 |
| CN1123374C true CN1123374C (en) | 2003-10-08 |
Family
ID=5275464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99112131A Expired - Fee Related CN1123374C (en) | 1999-03-29 | 1999-03-29 | Method for removing sulfur oxides from flue-gas by utilizing waste sludge of soda plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1123374C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100396359C (en) * | 2006-02-21 | 2008-06-25 | 张长江 | Method for preparing boiler flue gas desulfurizer from salty mud |
| CN101417870B (en) * | 2008-11-16 | 2011-02-02 | 青岛春风化工有限公司 | Method for producing architectural materials by using white slime |
| CN103143228A (en) * | 2013-03-29 | 2013-06-12 | 广东大众农业科技股份有限公司 | Method for purifying air at low cost |
| CN103537184B (en) * | 2013-10-30 | 2018-07-27 | 河北工业大学 | The method that compound scavenger carries out desulphurization denitration is prepared with pickling iron and steel waste residue |
| CN103537185B (en) * | 2013-10-30 | 2018-07-27 | 河北工业大学 | It is a kind of using steel plant's acid cleaning waste slag as the desulfurization denitrification agent of major ingredient and removal methods |
| CN106582598B (en) * | 2016-11-09 | 2019-06-04 | 上海大学 | For H2The carbon material and preparation method thereof containing basic group of the catalysis oxidation of S |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS531201A (en) * | 1976-06-25 | 1978-01-09 | Kinzou Takasugi | Process for producing fuels containing industrial waste in large amounts |
| CN85103018A (en) * | 1985-04-10 | 1986-10-08 | 湖南省邵阳造纸厂 | Grease-removing agent with the production of waste sludge from paper mill white clay |
| JPH0650505A (en) * | 1992-07-31 | 1994-02-22 | Onoda Cement Co Ltd | Desulfurizing agent used both for fuel and manufacture thereof |
| JPH07185323A (en) * | 1993-12-27 | 1995-07-25 | Tetsugen:Kk | Production of agent for desulfurization dry process |
| CN1203833A (en) * | 1998-05-06 | 1999-01-06 | 中国科学院生态环境研究中心 | Method for reduction of desulfurized waste residue, phosphogypsum or natural gypsum |
-
1999
- 1999-03-29 CN CN99112131A patent/CN1123374C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS531201A (en) * | 1976-06-25 | 1978-01-09 | Kinzou Takasugi | Process for producing fuels containing industrial waste in large amounts |
| CN85103018A (en) * | 1985-04-10 | 1986-10-08 | 湖南省邵阳造纸厂 | Grease-removing agent with the production of waste sludge from paper mill white clay |
| JPH0650505A (en) * | 1992-07-31 | 1994-02-22 | Onoda Cement Co Ltd | Desulfurizing agent used both for fuel and manufacture thereof |
| JPH07185323A (en) * | 1993-12-27 | 1995-07-25 | Tetsugen:Kk | Production of agent for desulfurization dry process |
| CN1203833A (en) * | 1998-05-06 | 1999-01-06 | 中国科学院生态环境研究中心 | Method for reduction of desulfurized waste residue, phosphogypsum or natural gypsum |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1268387A (en) | 2000-10-04 |
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