CN104084133A - Composite-type ammonia gas adsorbent of chloride modified coal cinder - Google Patents
Composite-type ammonia gas adsorbent of chloride modified coal cinder Download PDFInfo
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- CN104084133A CN104084133A CN201410358692.7A CN201410358692A CN104084133A CN 104084133 A CN104084133 A CN 104084133A CN 201410358692 A CN201410358692 A CN 201410358692A CN 104084133 A CN104084133 A CN 104084133A
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- adsorbent
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- coal cinder
- ammonia gas
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Abstract
The invention aims to provide a composite-type ammonia gas adsorbent of chloride modified coal cinder. In order to achieve the aim, the technical scheme adopted for the invention is as follows: selecting coal cinder after coal combustion, drying and activating at 120 DEG C for 3-6 hours, taking out, cooling in a dryer, crushing, taking out a certain amount of pulverized coal powder of 20-35 meshes, placing into a calcium chloride solution with certain concentration, soaking for 8-24 hours, filtering, drying in a drying box at 120 DEG C until the mass is not reduced any more, drying and activating at 700 DEG C for 1 hour, thereby obtaining the adsorbent.
Description
Technical field
The present invention relates to ammonia adsorbing domain, be specifically related to a kind of compound ammonia adsorbent of chloride modified coal slag.
Background technology
Ammonia, inorganic compound, is gas under normal temperature, the gas of colourless irritant stench, soluble in water, when ammonia is water-soluble, amino molecule becomes a hydration ammonia with hydrone by Hydrogenbond, one hydration ammonia energy fraction is ionized into ammonium ion and hydroxide ion, therefore ammoniacal liquor shows alkalescent, the mucous membrane of energy skin ambustion, eyes, respiratory apparatus, people sucks too much, can cause lung swelling, thus dead.
Due to a large amount of generations of municipal sewage and industrial wastewater, and exhaust emissions, cause environment more and more to worsen.Situation day by day serious, causes control imperative.
Absorption method is to process a kind of important physical chemistry method of harmful in waste water and waste gas and difficult degradation pollutant, and active carbon is the most frequently used sorbing material, but due to lack of material, cost is higher, regeneration is difficult etc., and reason is restricted its application.Take industry and agricultural wastes is raw material, and preparation and exploitation are cheap, to replace active carbon be the important directions that sorbing material is studied to efficient adsorption material.
Summary of the invention
The compound ammonia adsorbent that the object of this invention is to provide a kind of chloride modified coal slag, the lack of material existing to overcome prior art, the shortcoming that cost is high.For achieving the above object, the technical solution used in the present invention is as follows:
Get the cinder after coal combustion, dry activation 3-6h at 120 ℃ after, taking-up is cooling in drier, after pulverizing, the flyash of therefrom taking out a certain amount of 20-35 mesh sieve is placed in certain density calcium chloride solution, soak 8-24h, dry in 120 ℃ of drying boxes after leaching, until quality no longer reduces, put into 700 ℃ of oven dry activation 1h and obtain this adsorbent.
The present invention has following distinguishing feature:
(1) invent described adsorbent, raw material sources are extensive, cheap;
(2) invent described absorbent preparation method simple, adsorption rate is high;
(3) invent described performance of the adsorbent and stablize, the life-span is long, can preserve for a long time use.
the specific embodiment:
Embodiment 1:
Get the cinder after coal combustion, dry activation 3h at 120 ℃ after, taking-up is cooling in drier, after pulverizing, the flyash of therefrom taking out the 20-35 mesh sieve of 100g is placed in 50% calcium chloride solution, soak 8h, dry in 120 ℃ of drying boxes after leaching, until quality no longer reduces, put into 700 ℃ of oven dry activation 1h and obtain this adsorbent.
Embodiment 2:
Get the cinder after coal combustion, dry activation 5h at 120 ℃ after, taking-up is cooling in drier, after pulverizing, the flyash of therefrom taking out the 20-35 mesh sieve of 100g is placed in 60% calcium chloride solution, soak 12h, dry in 120 ℃ of drying boxes after leaching, until quality no longer reduces, put into 700 ℃ of oven dry activation 1h and obtain this adsorbent.
Embodiment 3:
Get the cinder after coal combustion, dry activation 6h at 120 ℃ after, taking-up is cooling in drier, after pulverizing, the flyash of therefrom taking out the 20-35 mesh sieve of 100g is placed in 65% calcium chloride solution, soak 24h, dry in 120 ℃ of drying boxes after leaching, until quality no longer reduces, put into 700 ℃ of oven dry activation 1h and obtain this adsorbent.
Claims (1)
1. the compound ammonia adsorbent that the invention discloses a kind of chloride modified coal slag, for achieving the above object, the technical solution used in the present invention is as follows:
Get the cinder after coal combustion, dry activation 3-6h at 120 ℃ after, taking-up is cooling in drier, after pulverizing, the flyash of therefrom taking out a certain amount of 20-35 mesh sieve is placed in certain density calcium chloride solution, soak 8-24h, dry in 120 ℃ of drying boxes after leaching, until quality no longer reduces, put into 700 ℃ of oven dry activation 1h and obtain this adsorbent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410358692.7A CN104084133A (en) | 2014-07-26 | 2014-07-26 | Composite-type ammonia gas adsorbent of chloride modified coal cinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410358692.7A CN104084133A (en) | 2014-07-26 | 2014-07-26 | Composite-type ammonia gas adsorbent of chloride modified coal cinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104084133A true CN104084133A (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410358692.7A Pending CN104084133A (en) | 2014-07-26 | 2014-07-26 | Composite-type ammonia gas adsorbent of chloride modified coal cinder |
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| CN (1) | CN104084133A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113713759A (en) * | 2021-09-15 | 2021-11-30 | 北京工大创客科技有限公司 | Powder for reducing blockage of ammonium bisulfate in air preheater of coal-fired power station and preparation method of powder |
-
2014
- 2014-07-26 CN CN201410358692.7A patent/CN104084133A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113713759A (en) * | 2021-09-15 | 2021-11-30 | 北京工大创客科技有限公司 | Powder for reducing blockage of ammonium bisulfate in air preheater of coal-fired power station and preparation method of powder |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141008 |