CN101249374A - Preparation of composite reclaiming agent and uses thereof - Google Patents
Preparation of composite reclaiming agent and uses thereof Download PDFInfo
- Publication number
- CN101249374A CN101249374A CNA2008100270749A CN200810027074A CN101249374A CN 101249374 A CN101249374 A CN 101249374A CN A2008100270749 A CNA2008100270749 A CN A2008100270749A CN 200810027074 A CN200810027074 A CN 200810027074A CN 101249374 A CN101249374 A CN 101249374A
- Authority
- CN
- China
- Prior art keywords
- desulfurizing agent
- waste liquor
- mixed
- preparation
- composite
- 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
Links
Landscapes
- Fertilizers (AREA)
Abstract
The invention discloses a method for preparing composite desulfurizer and the application thereof. According to the method, various kinds of alkali waste liquid and waste solid are mixed and processed, or various kinds of alkali waste liquid and waste solid are mixed with limestone/slaked lime to get the desulfurizer. Based on substituting the composite desulfurizer from waste solid and waste liquid for limestone flour and quicklime fully or partially, the invention makes use of alkaline waste resources to reduce pollution, save limestone resource and reduce the cost of desulphurization; in addition, the composite desulfurizer reacts more quickly than limestone or quicklime does in desulphurization reaction with high efficiency as the composite desulfurizer is treated with alkaline liquor and is provided with alkali which is highly soluble in water. The desulphurization product is fertilizer with microelements such as calcium, magnesium, zinc, iron, boron, silicon, sulfur and so on, and can be widely applied on farms. The invention makes use of alkaline waste for preparing the composite desulfurizer with the byproduct of trace fertilizer, and becomes an important technical way in energy industry developmental cycle economy.
Description
Technical field
The present invention relates to a kind of preparation method and application thereof of alkaline composite desulfurizing agent.
Background technology
Coal desulfurization is the important environmental practice that prevents that acid rain from producing.Existing coal-burning power plant and boiler mainly adopt limestone-gypsum wet process of FGD and flue gas circulating fluidized bed dry desulfurization, and desulfurizing agent wherein is agstone or quick lime.But, use agstone or quick lime desulfurization, the limestone resource of having to again consume, and also cost is higher, and the desulfurization product after the desulfurization only contains two kinds of nutrient elements in addition, is difficult for being widely used in the farmland.
Summary of the invention
For addressing the above problem, the purpose of this invention is to provide a kind of preparation method of composite desulfurizing agent, its technology is simple, has to reduce to pollute, and saves natural resources, reduces desulphurization cost, improves the advantage of desulfuration efficiency.
Another object of the present invention is by increasing nutrient element, the above-mentioned composite desulfurizing agent of extensive use in the farmland.
The object of the present invention is achieved like this: a kind of preparation method of composite desulfurizing agent is characterized in that: will make desulfurizing agent after the multiple alkaline waste liquor waste residue hybrid process, perhaps with multiple alkaline waste liquor waste residue and lime stone or the mixed desulfurizing agent that gets of calcium hydroxide.
Described multiple alkaline waste liquor waste residue comprises: top layer alkali flower or the soda plant's alkaline residue that give birth in papermaking alkaline waste liquor waste residue, stalk ash, boron mud, blast furnace scum, salt-soda soil.
Described papermaking alkaline waste liquor waste residue is alkali lignin, sodium lignin sulfonate, calcium lignosulfonate, perhaps the powder of making after such waste liquid drying.
Account for the ratio of desulfurizing agent total alkali content more than 5% in water-soluble alkali, multiple alkaline waste liquor waste residue is mixed or multiple alkaline waste liquor waste residue is mixed with lime stone/calcium hydroxide.
The composite desulfurizing agent that said method makes is applied to dry method or wet desulphurization.
The composite desulfurizing agent that said method makes is used for that the desulfurization product as fertilizer sources uses after dry method or the wet desulphurization.
The present invention replaces with the composite desulfurizing agent that comes from the alkaline scrap material waste liquid or part replaces agstone and quick lime, and technology is simple, utilizes the alkaline waste resource to turn waste into wealth, and both can reduce pollution, can save limestone resource again, reduces desulphurization cost; And prepared composite desulfurizing agent is owing to handle and have a higher water-soluble alkali through alkali lye, and is faster than the speed of the desulphurization reaction of lime stone or quick lime, the efficient height; Desulfurization product is the fertilizer with multiple middle micronutrient such as calcium, magnesium, zinc, iron, boron, silicon and sulphur, can be widely used in the farmland.The present invention utilizes alkaline discarded object to prepare trace-element fertilizer in composite desulfurizing agent and the coproduction, becomes the important technology approach that energy industry is developed a circular economy.
The specific embodiment
The present invention is a kind of preparation method of composite desulfurizing agent, and it makes desulfurizing agent after with multiple alkaline waste liquor waste residue hybrid process, or with multiple alkaline waste liquor waste residue and lime stone (calcium carbonate) or calcium hydroxide (calcium hydroxide) mixed desulfurizing agent.
Above-mentioned multiple alkaline waste liquor waste residue comprises: 1) papermaking alkaline waste liquor waste residue, for example alkali lignin, sodium lignin sulfonate, calcium lignosulfonate, the perhaps powder of making after such waste liquid drying; 2) stalk ash as the stove powder of straw electric generation plant, is the Boiler Ash of fuel with living beings; 3) alkaline scrap material is as boron mud, blast furnace scum; 4) living top layer " alkali flower " (being rich in sodium, magnesium, calcium), salt-soda soil; Soda plant's alkaline residue.
The proportioning of various alkaline waste liquor waste residues, or with the proportioning of lime stone, calcium hydroxide, should adjust according to various liquid and waste slag produced actual alkalinities, major control mixes the total alkali content of back product and the percentage that water-soluble alkali accounts for total alkali content, can make product meet the product requirement of desulfurizing agent.Preferably, the calcium equivalent of total alkali content and lime stone or calcium hydroxide is suitable.Multiple alkaline waste liquor waste residue is mixed, when perhaps multiple alkaline waste liquor waste residue being mixed with lime stone or calcium hydroxide, account for the ratio of desulfurizing agent total alkali content more than 5% in water-soluble alkali and carry out.Ratio is more than 10% preferably, and this moment, the desulphurization reaction speed and the efficient of desulfurizing agent obviously improved, and the middle micro-ratio of desulfurization product more becomes reasonable.Under the low-cost condition of composite desulfurizing agent, it is better that this ratio is brought up to 20～30% effects.
For ease of on-the-spot thin up, require according to the above ratio that preferably each alkaline waste liquor raw slag material is made into pulpous state and stir, make it even mixing, the water-solid ratio example (routine) when the water-solid ratio example of paste mixture is less than practical application simultaneously.When multiple alkaline waste liquor raw slag material is powdery, preferably earlier the high raw material of water soluble alkali content is added the water stirring and dissolving, add other powder raw materials again and be made into pulpous state.Liquid and waste slag produced raw material according to reality during preparation is handled.For example, papermaking alkaline waste liquor (alkali lignin, sodium lignin sulfonate, calcium lignosulfonate any one or two kinds) be mixed into pulpous state with boron mud powder, boron mud powder can agstone, stalk ashes, alkaline residue, blast furnace slag, all or part of replacements such as (alkali flower layers) of saline-alkali soil top layer.Also can stir into pulpous state to the stalk ash with low amounts of water dissolving back with powder raw material earlier.
The composite desulfurizing agent that said method makes is applied to dry method or wet desulphurization, by the requirement of wet method or dry method, composite desulfurizing agent is mixed with suitable aqueous or pulpous state, sprays into and carries out desulfurization in the desulphurization plant.
The composite desulfurizing agent that said method makes, be used for dry method or wet desulphurization after, trace element can be used as fertilizer to use separately, or mixes use with other fertilizer in desulfurization product calcic, magnesium, zinc, iron, boron, silicon and the sulphur etc.
Embodiment 1
With 1 ton of alkali lignin or sodium lignin sulfonate, add stirring and dissolving in 3 tons of water, add 0.5 ton in boron mud powder (or alkaline residue) again, it is standby to stir into pulpous state.
Embodiment 2
With 1 ton of stalk ash, add stirring and dissolving in 3 tons of water, add 0.5 ton in boron mud powder (or alkaline residue) again, 0.2 ton of agstone, it is standby to stir into pulpous state.
Embodiment 3
0.5 ton of alkali lignin, 0.5 ton of stalk ash adds stirring and dissolving in 3 tons of water, adds 0.2 ton in boron mud powder (or alkaline residue) again, 0.5 ton of agstone, it is standby to stir into pulpous state.
Embodiment 4
0.5 ton on saline-alkali soil top layer (grinding 200 mesh sieves), 0.5 ton of alkali lignin adds stirring and dissolving in 3 tons of water, adds 0.2 ton in boron mud powder (or alkaline residue) again, 0.5 ton of agstone, it is standby to stir into pulpous state.
Embodiment 5
0.5 ton of blast furnace slag (grinding 200 mesh sieves), 0.5 ton of stalk ash adds stirring and dissolving in 3 tons of water, adds 0.2 ton in boron mud powder (or alkaline residue) again, 0.5 ton of agstone, it is standby to stir into pulpous state.
Embodiment 6
Adding boron mud powder or alkaline residue are 0.7 ton in 3 cubes of papermaking alkalescence black liquor (alkali lignin waste liquid or sodium lignin sulfonate liquid), 1 ton of agstone, and it is standby to stir into pulpous state.
Embodiment 7
With paper mill alkalescence black liquor (alkali lignin waste liquid or sodium lignin sulfonate liquid) dilute hydrogen calcium oxide underflow liquid.It is consistent with the alkali equivalent of dry method calcium hydroxide desulfurization slurry to make this mixed liquor contain the alkali equivalent, and it is standby to stir into pulpous state.
During use,, said mixture is added water be mixed with the pulpous state that meets instructions for use, spray into and carry out desulfurization in the desulphurization plant by the requirement of dry method or wet desulphurization.Product after the desulfurization be rich in calcium, magnesium, zinc, iron, boron, silicon and sulphur etc. multiple in trace element, can be made into granular or powdered fertilizer, do separately fertilizer or with the use that is mixed of nitrogen, phosphorus, potash fertilizer.
Claims (10)
1. the preparation method of a composite desulfurizing agent is characterized in that: will make desulfurizing agent after the multiple alkaline waste liquor waste residue hybrid process, perhaps with multiple alkaline waste liquor waste residue and lime stone or the mixed desulfurizing agent that gets of calcium hydroxide.
2. the preparation method of a kind of composite desulfurizing agent according to claim 1, it is characterized in that: described multiple alkaline waste liquor waste residue comprises: top layer alkali flower or the soda plant's alkaline residue that give birth in papermaking alkaline waste liquor waste residue, stalk ash, boron mud, blast furnace scum, salt-soda soil.
3. the preparation method of a kind of composite desulfurizing agent according to claim 2, it is characterized in that: described papermaking alkaline waste liquor waste residue is alkali lignin, sodium lignin sulfonate or calcium lignosulfonate, perhaps the powder of making after such waste liquid drying.
4. the preparation method of a kind of composite desulfurizing agent according to claim 1, it is characterized in that: account for the ratio of desulfurizing agent total alkali content more than 5% in water-soluble alkali, multiple alkaline waste liquor waste residue is mixed, or multiple alkaline waste liquor waste residue is mixed with lime stone or calcium hydroxide.
5. the preparation method of a kind of composite desulfurizing agent according to claim 1, it is characterized in that: account for the ratio of desulfurizing agent total alkali content more than 10% in water-soluble alkali, multiple alkaline waste liquor waste residue is mixed, or multiple alkaline waste liquor waste residue is mixed with lime stone or calcium hydroxide.
6. the preparation method of a kind of composite desulfurizing agent according to claim 1, it is characterized in that: the ratio that accounts for desulfurizing agent total alkali content 20-30% in water-soluble alkali, multiple alkaline waste liquor waste residue is mixed, or multiple alkaline waste liquor waste residue is mixed with lime stone or calcium hydroxide.
7. according to the preparation method of claim 4,5 or 6 described a kind of composite desulfurizing agents, it is characterized in that: require that in proportion each alkaline waste liquor raw slag material is made into pulpous state and stir, make it even mixing, the water-solid ratio example of the water-solid ratio example of paste mixture during less than practical application.
8. the preparation method of a kind of composite desulfurizing agent according to claim 1 is characterized in that: when described multiple alkaline waste liquor raw slag material is powdery, earlier the high raw material of water soluble alkali content is added the water stirring and dissolving, add other powder raw materials again and be made into pulpous state.
9. the composite desulfurizing agent that makes according to the described method of claim 1 is applied to dry method or wet desulphurization.
10. the composite desulfurizing agent that makes according to the described method of claim 1, be used for dry method or wet desulphurization after, the desulfurization product as fertilizer sources uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100270749A CN101249374A (en) | 2008-03-28 | 2008-03-28 | Preparation of composite reclaiming agent and uses thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100270749A CN101249374A (en) | 2008-03-28 | 2008-03-28 | Preparation of composite reclaiming agent and uses thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101249374A true CN101249374A (en) | 2008-08-27 |
Family
ID=39953076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100270749A Pending CN101249374A (en) | 2008-03-28 | 2008-03-28 | Preparation of composite reclaiming agent and uses thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101249374A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537184A (en) * | 2013-10-30 | 2014-01-29 | 河北工业大学 | Method for preparing complex removal agent from steel and iron pickling waste residues to carry out desulfurization and denitrification |
| CN103537185A (en) * | 2013-10-30 | 2014-01-29 | 河北工业大学 | Desulfurization and denitrification agent with pickling waste residues from steel and iron plants as main materials and removal method |
| CN104726152A (en) * | 2014-07-26 | 2015-06-24 | 青岛科技大学 | Preparation method of novel water coal slurry capable of realizing high efficiency desulphurization during combustion |
| CN105175194A (en) * | 2015-10-13 | 2015-12-23 | 石河子大学 | Wet-process desulfurized waste saline-alkaline soil biological improvement fertilizer and preparation method thereof |
| CN105879604A (en) * | 2016-06-14 | 2016-08-24 | 宁夏中科精科检测技术有限公司 | Desulfurizing agent and preparation and using method thereof |
| CN106310912A (en) * | 2016-08-29 | 2017-01-11 | 郭嘉威 | Wet desulfurization tower and desulfurization technology thereof |
| CN106925250A (en) * | 2015-12-29 | 2017-07-07 | 天津市英派克石化工程有限公司 | A kind of method that dry type desulfurizing catalyst is prepared with white clay |
| CN110397913A (en) * | 2019-08-06 | 2019-11-01 | 新乡市汇能玉源发电有限公司 | A kind of furfural dregs Denitration in Boiler system effectively improving denitration efficiency |
| CN111575075A (en) * | 2020-05-20 | 2020-08-25 | 中国华能集团有限公司 | Method for desulfurizing and decarbonizing methane by combining solid waste and waste alkali liquor |
-
2008
- 2008-03-28 CN CNA2008100270749A patent/CN101249374A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537184A (en) * | 2013-10-30 | 2014-01-29 | 河北工业大学 | Method for preparing complex removal agent from steel and iron pickling waste residues to carry out desulfurization and denitrification |
| CN103537185A (en) * | 2013-10-30 | 2014-01-29 | 河北工业大学 | Desulfurization and denitrification agent with pickling waste residues from steel and iron plants as main materials and removal method |
| 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 |
| 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 |
| CN104726152A (en) * | 2014-07-26 | 2015-06-24 | 青岛科技大学 | Preparation method of novel water coal slurry capable of realizing high efficiency desulphurization during combustion |
| CN105175194A (en) * | 2015-10-13 | 2015-12-23 | 石河子大学 | Wet-process desulfurized waste saline-alkaline soil biological improvement fertilizer and preparation method thereof |
| CN106925250A (en) * | 2015-12-29 | 2017-07-07 | 天津市英派克石化工程有限公司 | A kind of method that dry type desulfurizing catalyst is prepared with white clay |
| CN105879604A (en) * | 2016-06-14 | 2016-08-24 | 宁夏中科精科检测技术有限公司 | Desulfurizing agent and preparation and using method thereof |
| CN106310912A (en) * | 2016-08-29 | 2017-01-11 | 郭嘉威 | Wet desulfurization tower and desulfurization technology thereof |
| CN110397913A (en) * | 2019-08-06 | 2019-11-01 | 新乡市汇能玉源发电有限公司 | A kind of furfural dregs Denitration in Boiler system effectively improving denitration efficiency |
| CN111575075A (en) * | 2020-05-20 | 2020-08-25 | 中国华能集团有限公司 | Method for desulfurizing and decarbonizing methane by combining solid waste and waste alkali liquor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101249374A (en) | Preparation of composite reclaiming agent and uses thereof | |
| CN102114385B (en) | Flue gas desulfurization additive | |
| CN101045544A (en) | Method for preparing superthin light calcium carbonate using plaster as raw material | |
| CN102503334B (en) | Surface layer whitewash gypsum using dry-process desulfurized ash as raw material and preparation method thereof | |
| CN102746023B (en) | Constructed wetland matrix filling material for simultaneous nitrogen and phosphorus removal and its preparation method | |
| CN103111186A (en) | Method for mineralizing and fixing carbon dioxide by using strengthened steel slag | |
| CN104129934A (en) | Cementing material containing silicon-calcium slag and preparation method thereof | |
| CN103058738A (en) | Method for preparing phosphate fertilizer soil conditioner by using phosphate tailings and acidic wastewater | |
| CN103910371A (en) | Method for preparing calcium carbonate and coproducing ammonium sulfate by utilizing flue gas desulfurization gypsum or desulfurization ash residues | |
| CN101428193A (en) | Wet-type desulfuration method for steel scoria with flue gas | |
| CN113502164A (en) | Method for producing mineral soil conditioner by utilizing desulfurized gypsum, phosphogypsum and potassium ore and product | |
| CN101440324A (en) | Comprehensive utilization of Bayer process red mud | |
| CN100415639C (en) | Process for reductive decomposition of phosphogypsum by sulfur coal | |
| CN104774667A (en) | Moulded coal binder and preparation method thereof | |
| CN105967935A (en) | Acid soil conditioner | |
| CN106701236B (en) | The method for preparing briquette binder using landfill leachate and its producing industrial shaping coal | |
| CN104962338A (en) | Slime combustion-supporting desulfurizing composite additive and preparing method thereof | |
| CN102188896A (en) | Process for preparing complex desulfurizer from carbide slag for desulfuration | |
| CN111718772B (en) | Drying-free adhesive and preparation method thereof | |
| CN102477335A (en) | Industrial thermally-expanded briquettes | |
| CN113072951A (en) | Composite biochar, preparation method thereof and ecological restoration method for industrial solid waste | |
| CN102275967A (en) | Method for preparing nanometer calcium carbonate by using sintered desulfurated ash residues as raw materials | |
| CN206082129U (en) | Fly ash extract is equipped as preparation of desulfurizer after spouting calcium desulfurization in stove | |
| CN102021058B (en) | Biomass briquette taking sand plants as base material and production method thereof | |
| CN105505520A (en) | Precise desulphurization method of circulating fluidized bed boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080827 |