CN101486780B - Apparatus and method for utilizing exhuast gas desulfurization by-product - Google Patents
Apparatus and method for utilizing exhuast gas desulfurization by-product Download PDFInfo
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- CN101486780B CN101486780B CN2008100650663A CN200810065066A CN101486780B CN 101486780 B CN101486780 B CN 101486780B CN 2008100650663 A CN2008100650663 A CN 2008100650663A CN 200810065066 A CN200810065066 A CN 200810065066A CN 101486780 B CN101486780 B CN 101486780B
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- calcium carbide
- acetylene
- polyvinyl chloride
- soda ash
- synthesizing
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Abstract
The embodiment of the invention discloses a waste gas desulphurization outgrowth utilizing device, comprising an acetylene generating device, a polyvinyl chloride synthesizing device and a calcined soda generating device. The acetylene generating device is used for using calcium carbide to generate acetylene, leading the generated acetylene into the polyvinyl chloride synthesizing device and leading calcium carbide slag of the calcium carbide into the calcined soda generating device; the polyvinyl chloride synthesizing device is used for synthesizing polyvinyl chloride by using chloride and hydrogen generated by a waste gas desulphurization unit and the acetylene led inside by the acetylene generating device; and the calcined soda generating device is used for synthesizing calcined soda by using carbon dioxide, crude salt and the calcium carbide slag led inside by the acetylene generating device. The embodiment of the invention also discloses a waste gas desulphurization outgrowth utilizing method. The invention can effectively reduce the investment costs of the waste gas desulphurization process using chlor-alkali/sulphuric acid, the polyvinyl chloride synthesizing process and the calcined soda synthesizing process, and improve the economic benefit.
Description
Technical field
The present invention relates to the field of waste-gas desulfurization, relate in particular to a kind of use device and method of exhuast gas desulfurization by-product.
Background technology
Contain a large amount of sulfurous gas in the boiler that industries such as electric power, chemical industry, metallurgy are generally used, the smoke evacuation waste gas that kiln is discharged, it causes serious pollution to atmosphere, is the main pollution that acid rain forms.At present, carry out smoke evacuation waste-gas desulfurization research both at home and abroad energetically, and in real work, promoted some desulfurization technologies and technology.For example, adopt lime/lime stone-gypsum method, spray-drying process, electronic beam method and chlor-alkali/sulfuric acid nanofarad etc.A kind ofly waste gas is carried out in the device of desulfurization with chlor-alkali/sulfuric acid nanofarad; With sodium-chlor as raw material; Electrolysis in the electrolyzer in this device generates the sweetening agent sodium hydroxide solution, and said sodium hydroxide sweetening agent is delivered in the waste-gas desulfurization tower in this device waste gas is carried out desulfurizing and purifying.Waste gas after the purification is discharged in the atmosphere.The treated products such as Sodium sulfate anhydrous.min(99), sulfuric acid, sulfur dioxide liquid that generate of desulfurization wastewater.And electrolyzer can produce by products such as chlorine and hydrogen in electrolytic process, and the storage of chlorine and hydrogen and transportation are all comparatively difficult, can cause new pollution if deal with improperly, also can cause the wasting of resources.
Summary of the invention
Embodiment of the invention technical problem to be solved is, a kind of use device and method of exhuast gas desulfurization by-product is provided.Can effectively reduce the technology investment cost of chlor-alkali/sulfuric acid nanofarad waste-gas desulfurization technology, SE synthesis technique and soda ash synthesis technique, increase economic efficiency.
In order to solve the problems of the technologies described above; The embodiment of the invention provides a kind of use device of exhuast gas desulfurization by-product; Comprise acetylene generator, polyvinyl chloride synthesizing device and soda ash generating apparatus, at least one Wingdale treatment unit and at least one calcium carbide generating unit;
Said Wingdale treatment unit is used for splitting the carbon dioxide off and unslaked lime from Wingdale, and the said carbonic acid gas that decomposites imported in the said soda ash generating apparatus and with the said unslaked lime that decomposites imports in the said calcium carbide generating unit;
Said calcium carbide generating unit is used for synthesizing calcium carbide through the said unslaked lime that water and said Wingdale treatment unit import, and said synthetic calcium carbide is imported in the said acetylene generator;
Said acetylene generator is used for generating acetylene through calcium carbide, and the acetylene that generates imported in the said polyvinyl chloride synthesizing device and with said calcium carbide slag imports in the said soda ash generating apparatus;
The said acetylene synthesizing polyvinyl chloride that chlorine, hydrogen and the said acetylene generator that said polyvinyl chloride synthesizing device is used for producing through flue gas desulphurization unit imports;
The said carbide slag that said soda ash generating apparatus is used for importing through carbonic acid gas, crude salt and said acetylene generator synthesizes soda ash.
Accordingly, the embodiment of the invention also provides a kind of method of utilizing of exhuast gas desulfurization by-product, and said method comprises:
The Wingdale treatment unit splits the carbon dioxide off from Wingdale and unslaked lime, and the said carbonic acid gas that decomposites imported in the said soda ash generating unit and with the said unslaked lime that decomposites imports in the said calcium carbide generating unit;
Said calcium carbide generating unit synthesizes calcium carbide through the said unslaked lime that water and said Wingdale treatment unit import, and said synthetic calcium carbide is imported in the said acetylene generator;
Chlorine, hydrogen that flue gas desulphurization unit is produced import in the polyvinyl chloride synthesizing device;
Acetylene generator generates acetylene through calcium carbide, and the acetylene that generates imported in the said polyvinyl chloride synthesizing device and with said calcium carbide slag imports in the soda ash generating apparatus;
Chlorine, hydrogen and the acetylene synthesizing polyvinyl chloride of said polyvinyl chloride synthesizing device through importing;
Said soda ash generating apparatus is through the synthetic soda ash of the said carbide slag of carbonic acid gas, crude salt and importing.
The embodiment of the invention is utilized chlorine that waste-gas desulfurization produces and the hydrogen raw material as synthesizing polyvinyl chloride; The raw material of soda ash is synthesized in the carbide slag conduct that utilizes synthesizing polyvinyl chloride to produce; Effectively with chlor-alkali/sulfuric acid nanofarad waste-gas desulfurization technology and SE synthesis technique and the integration of soda ash synthesis technique; With independently carry out chlor-alkali/sulfuric acid nanofarad waste-gas desulfurization technology respectively, independently carry out SE synthesis technique and independently carry out the soda ash synthesis technique and compare; Has the technology investment of reduction cost, the advantage of increasing economic efficiency.
Description of drawings
Fig. 1 is an example structure synoptic diagram of the use device of exhuast gas desulfurization by-product of the present invention;
Fig. 2 is the system process figure of the embodiment of the invention with chlor-alkali/sulfuric acid nanofarad waste-gas desulfurization technology and SE synthesis technique and the integration of soda ash synthesis technique.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that the present invention is done to describe in detail further below.
Fig. 1 is an example structure synoptic diagram of the use device of exhuast gas desulfurization by-product of the present invention.The use device of the exhuast gas desulfurization by-product of present embodiment as shown in Figure 1 comprises limestone kiln 1 (being a kind of of Wingdale treatment unit), furnace of calcium carbide 2 (being a kind of of calcium carbide generating unit), acetylene generator 3, polyvinyl chloride synthesizing device 4 and soda ash device 5; Said limestone kiln 1 is used for splitting the carbon dioxide off and unslaked lime from Wingdale, and through the 6th conduit 16 the said carbonic acid gas that decomposites is imported in the said soda ash generating unit 5 and through first conduit 10 the said unslaked lime that decomposites is imported in the said furnace of calcium carbide 2; Said furnace of calcium carbide 2 is used for the synthetic calcium carbide of said unslaked lime that imports through water and said limestone kiln 1, and said synthetic calcium carbide imported in the said acetylene generator 3 and with said synthetic calcium carbide and/or carbide slag through second conduit 11 imports in the said soda ash generating apparatus 5 through the 5th conduit 15; Said acetylene generator 3 is used for generating acetylene through the calcium carbide that said furnace of calcium carbide 2 imports, and the acetylene that generates imported in the said polyvinyl chloride synthesizing device 4 and with said calcium carbide slag through the 3rd conduit 12 imports in the said soda ash generating apparatus 5 through the 4th conduit 14; Said polyvinyl chloride synthesizing device 4 is used for through the hydrogen of the flue gas desulphurization unit generation of the chlorine of the 8th conduit 18 importing flue gas desulphurization units generations, 17 importings of the 7th conduit and the said acetylene synthesizing polyvinyl chloride that said acetylene generator 3 imports; Concrete, polyvinyl chloride synthesizing device 4 can comprise hydrogenchloride synthesizer and poly-unit, said hydrogenchloride synthesizer is used for synthesising hydrogen; Said poly-unit is used for aggregating into SE through said acetylene and said hydrogenchloride; Said soda ash generating apparatus 5 be used for the carbonic acid gas that imports through crude salt, said limestone kiln 1, said carbide slag that said acetylene generator 3 imports, calcium carbide that said furnace of calcium carbide 2 imports and/the synthetic soda ash of carbide slag.
Adopt device shown in Figure 1 that the method that exhuast gas desulfurization by-product utilizes is comprised:
Limestone kiln 1 splits the carbon dioxide off from Wingdale and unslaked lime, and the said carbonic acid gas that decomposites imported in the said soda ash generating unit 5 and with the said unslaked lime that decomposites through the 6th conduit 16 imports in the said furnace of calcium carbide 2 through first conduit 10;
The synthetic calcium carbide of said unslaked lime that said furnace of calcium carbide 2 imports through water and said limestone kiln 1 second conduit 11, and said synthetic calcium carbide imported in the said acetylene generator 3 and with said synthetic calcium carbide and/or carbide slag import in the said soda ash generating apparatus 5 through the 5th conduit 15;
Said acetylene generator 3 generates acetylene through the calcium carbide that said furnace of calcium carbide 2 imports, and the acetylene that generates imported in the said polyvinyl chloride synthesizing device 4 and with said calcium carbide slag through the 3rd conduit 12 imports in the said soda ash generating apparatus 5 through the 4th conduit 14;
Flue gas desulphurization unit through the 7th conduit 17 with hydrogen, chlorine is imported to said polyvinyl chloride synthesizing device 4 through the 8th conduit 18;
The said acetylene synthesizing polyvinyl chloride that the chlorine that said polyvinyl chloride synthesizing device 4 imports through flue gas desulphurization unit, hydrogen and said acetylene generator 3 import;
The calcium carbide that the said carbide slag that the carbonic acid gas that said soda ash generating apparatus 5 imports through crude salt, said limestone kiln 1, said acetylene generator 3 import, said furnace of calcium carbide 2 import and/the synthetic soda ash of carbide slag.
Further, Fig. 2 is the system process figure of the embodiment of the invention with calcium carbide, chlor-alkali/sulfuric acid nanofarad waste-gas desulfurization technology and SE synthesis technique and the integration of soda ash synthesis technique.As shown in Figure 2; The embodiment of the invention is utilized chlorine that waste-gas desulfurization produces and the hydrogen raw material as synthesizing polyvinyl chloride; The raw material of soda ash is synthesized in the carbide slag conduct that utilizes synthesizing polyvinyl chloride to produce; Effectively with chlor-alkali/sulfuric acid nanofarad waste-gas desulfurization technology and SE synthesis technique and the integration of soda ash synthesis technique; With independently carry out chlor-alkali/sulfuric acid nanofarad waste-gas desulfurization technology respectively, independently carry out SE synthesis technique and independently carry out the soda ash synthesis technique and compare, have the technology investment of reduction cost, the advantage of increasing economic efficiency.
Above disclosedly be merely preferred embodiment of the present invention, can not limit the present invention's interest field certainly with this, the equivalent variations of therefore doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (6)
1. the use device of an exhuast gas desulfurization by-product is characterized in that, comprises acetylene generator, polyvinyl chloride synthesizing device and soda ash generating apparatus, at least one Wingdale treatment unit and at least one calcium carbide generating unit;
Said Wingdale treatment unit is used for splitting the carbon dioxide off and unslaked lime from Wingdale, and the said carbonic acid gas that decomposites imported in the said soda ash generating apparatus and with the said unslaked lime that decomposites imports in the said calcium carbide generating unit;
Said calcium carbide generating unit is used for synthesizing calcium carbide through the said unslaked lime that water and said Wingdale treatment unit import, and said synthetic calcium carbide is imported in the said acetylene generator;
Said acetylene generator is used for generating acetylene through calcium carbide, and the acetylene that generates imported in the said polyvinyl chloride synthesizing device and with said calcium carbide slag imports in the said soda ash generating apparatus;
The said acetylene synthesizing polyvinyl chloride that chlorine, hydrogen and the said acetylene generator that said polyvinyl chloride synthesizing device is used for producing through flue gas desulphurization unit imports;
The said carbide slag that said soda ash generating apparatus is used for importing through carbonic acid gas, crude salt and said acetylene generator synthesizes soda ash.
2. the use device of exhuast gas desulfurization by-product as claimed in claim 1 is characterized in that, described Wingdale treatment unit is the limestone kiln.
3. the use device of exhuast gas desulfurization by-product as claimed in claim 1 is characterized in that, described calcium carbide generating unit is a furnace of calcium carbide.
4. like the use device of each described exhuast gas desulfurization by-product among the claim 1-3, it is characterized in that described calcium carbide generating unit also is used for said synthetic calcium carbide is imported to said soda ash generating apparatus.
An exhuast gas desulfurization by-product utilize method, it is characterized in that, comprising:
The Wingdale treatment unit splits the carbon dioxide off from Wingdale and unslaked lime, and the said carbonic acid gas that decomposites imported in the said soda ash generating unit and with the said unslaked lime that decomposites imports in the said calcium carbide generating unit;
Said calcium carbide generating unit synthesizes calcium carbide through the said unslaked lime that water and said Wingdale treatment unit import, and said synthetic calcium carbide is imported in the said acetylene generator;
Chlorine, hydrogen that flue gas desulphurization unit is produced import in the polyvinyl chloride synthesizing device;
Acetylene generator generates acetylene through calcium carbide, and the acetylene that generates imported in the said polyvinyl chloride synthesizing device and with said calcium carbide slag imports in the soda ash generating apparatus;
Chlorine, hydrogen and the acetylene synthesizing polyvinyl chloride of said polyvinyl chloride synthesizing device through importing;
Said soda ash generating apparatus is through the synthetic soda ash of the said carbide slag of carbonic acid gas, crude salt and importing.
6. require the method for utilizing of 5 described exhuast gas desulfurization by-products like power, it is characterized in that, also comprise:
The calcium carbide generating unit imports to said synthetic calcium carbide in the said soda ash generating apparatus.
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| CN101486780B true CN101486780B (en) | 2012-05-02 |
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