CN85100101A - Granular desulfuration agent - Google Patents
Granular desulfuration agent Download PDFInfo
- Publication number
- CN85100101A CN85100101A CN 85100101 CN85100101A CN85100101A CN 85100101 A CN85100101 A CN 85100101A CN 85100101 CN85100101 CN 85100101 CN 85100101 A CN85100101 A CN 85100101A CN 85100101 A CN85100101 A CN 85100101A
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- CN
- China
- Prior art keywords
- moulding
- agent
- desulfurizing agent
- water
- reunion
- 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.)
- Pending
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Abstract
A kind of fluidized bed combustion desulfurizing agent of being made up of lime stone, it is that agstone is added the moulding of small amount of clay water, or uses cement slurry, water reunion moulding.This granular desulfuration agent does not need that existing fluidized-bed combustion boiler is carried out structural repacking can make desulfuration efficiency reach more than 85%, improves the utilization rate of lime stone significantly.
Description
The present invention relates to a kind of fluidized bed combustion desulfurizing agent.
In existing fluid-bed sweetening technology, use the limestone particle desulfurization more.Therefore surface area is too small, general calcium utilization only about 20%.Adopt the fine granularity agstone again because of speed in the bed is too high, particle time of staying in bed shortens, and its utilization rate also is no more than 20%.
Strange (Lurgi) company in Shandong, Germany and U.S. Bei Teer (Battel
) the circulation fluidized bed combustion scheme that proposes of laboratory can make particle time of staying in bed prolong, calcium utilization can reach about 40%, but this boiler structure complexity, resistance is big, power consumption is high.Adopting flying dust to get back to the double bed scheme that low speed fires bed again can improve about calcium utilization to 30% equally.
U.S. Bu Lukaiwen (Brookhaven) National Laboratory and Japan Nagoya university once used clinker (Cement Clinker) moulding to make desulfurizing agent, but calcium utilization also only is about 20%.(as No. 4 (1984) P269-274 report of Japan's " fuel association will " the 63rd volume).
Task of the present invention provides a kind of efficient desulfurizing agent, and existing high desulfuration efficiency when it can use in not needing to reequip the existing fluidized-bed combustion boiler of structure has high lime stone utilization rate again.
Characteristics of the present invention are agstone to be added small amount of clay make binding agent, water reunion moulding; Or with cement slurry water reunion moulding.Reasonable diameter after the moulding can be 5～10 millimeters.Its principle mainly is desulfurizing agent universe when dry, wherein analyses when water evaporates and lime stone decomposes and puts CO
2Space when the space total amount that is caused is decomposed merely greater than limestone particle; The average pore size of hole also increases, and helps gas to the desulfurizing agent diffusion inside.The particle of reunion moulding can be done long-time the stop in bed, make binding agent except that with low cost with clay, and desulfurizing agent is worn away at bed internal cause bump, and attrition is brought in constant renewal in the desulfurizing agent surface.Above-mentioned factor all helps improving calcium utilization.
The present invention has broken through prior art, does not need existing fluidized-bed combustion boiler is carried out structural repacking, and desulfuration efficiency is reached more than 85%, and calcium utilization is increased substantially.Embodiment is: 4 tons of Yichang City's dyeing and weaving head factory/time boiler on, use agstone and the reunion of clay (ratio is 9: 1) water are 5～8 millimeters ball-type desulfurizing agent, using caloric value is 3300 kilocalorie/kilograms, when flammable sulfur content is 97% high-sulfur bituminous coal inferior, make desulfuration efficiency reach 86%, calcium utilization reaches 85%.
The sulfur dioxide pollution that fire coal causes is the main contributor that the many regional acid rains of China take place frequently, and not yet has at present cost-effective measure to be used for preventing the pollution of the environment. The present invention can reduce SO2Discharging improves environmental pollution, and the raw material that adopts is lime stone and clay cheap and easy to get, the manufacture craft maturation. Simultaneously, because shaping characteristic of the present invention and high calcium utilization can be fixed up the form of former sulphur in coal with calcium sulfate, it can become the good raw material of cement processed and relieving haperacidity. For the sulphur resource reclaims and obtains certain economic benefit and created condition when obtaining good environment benefit, social benefit.
Claims (3)
1, a kind of fluidized bed combustion desulfurizing agent of being made up of lime stone is characterized in that agstone adding additives water reunion moulding; Or use cement slurry, water reunion moulding.
2, by claim 1 described desulfurizing agent, it is characterized in that said binding agent is a clay.
3, by claim 1 or 2 described desulfurizing agents, the diameter that it is characterized in that desulfurizing agent is 5～10 millimeters.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85100101 CN85100101A (en) | 1985-04-01 | 1985-04-01 | Granular desulfuration agent |
| JP7538786A JPS62190308A (en) | 1985-04-01 | 1986-04-01 | Pelletized desulfurizing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85100101 CN85100101A (en) | 1985-04-01 | 1985-04-01 | Granular desulfuration agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85100101A true CN85100101A (en) | 1986-08-20 |
Family
ID=4790885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85100101 Pending CN85100101A (en) | 1985-04-01 | 1985-04-01 | Granular desulfuration agent |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS62190308A (en) |
| CN (1) | CN85100101A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437366A (en) * | 2014-11-13 | 2015-03-25 | 安徽凤凰滤清器股份有限公司 | Uneasily-disintegrated mixed active carbon desulfurizing agent and preparation method thereof |
| CN107261826A (en) * | 2017-07-31 | 2017-10-20 | 董小军 | A kind of cement kiln flue gas catalytically fixed sulphur pulvis |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS606908B2 (en) * | 1977-08-04 | 1985-02-21 | 日本坩堝株式会社 | Method for producing active silicon carbide powder containing boron component |
| JPH0230739B2 (en) * | 1982-05-04 | 1990-07-09 | Babcock Hitachi Kk | DATSURYUZAINOSEIZOHOHO |
-
1985
- 1985-04-01 CN CN 85100101 patent/CN85100101A/en active Pending
-
1986
- 1986-04-01 JP JP7538786A patent/JPS62190308A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437366A (en) * | 2014-11-13 | 2015-03-25 | 安徽凤凰滤清器股份有限公司 | Uneasily-disintegrated mixed active carbon desulfurizing agent and preparation method thereof |
| CN107261826A (en) * | 2017-07-31 | 2017-10-20 | 董小军 | A kind of cement kiln flue gas catalytically fixed sulphur pulvis |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62190308A (en) | 1987-08-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |