CN1788826A - Flume desulfuration byproduct integral utilization device and method - Google Patents
Flume desulfuration byproduct integral utilization device and method Download PDFInfo
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- CN1788826A CN1788826A CN 200410098788 CN200410098788A CN1788826A CN 1788826 A CN1788826 A CN 1788826A CN 200410098788 CN200410098788 CN 200410098788 CN 200410098788 A CN200410098788 A CN 200410098788A CN 1788826 A CN1788826 A CN 1788826A
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- pvc
- synthesizer
- acetylene
- flue gas
- sulfuric acid
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Abstract
The present invention provides one kind of comprehensive utilization apparatus of fume desulsurizing side product, and features that the comprehensive utilization apparatus a fume desulfurizing set, an acetylene generator and a PVC synthesizer. The hydrogen and the chlorine the fume desulfurizing set produces and the acetylene the acetylene generator produces are led to the PVC synthesizer to synthesize PVC. The present invention integrates the fume desulfurizing chloralkali/sodium sulfate technological process and PVC producing technological process, and has the positive effects of lowering investment cost, lowering production cost and raising economic utility.
Description
[technical field]
The present invention relates to a kind of comprehensive utilization device and method of flue gas desulfurization byproduct.The environmental protection field that it belongs to flue gas desulfurization is particularly suitable for the flue gas desulfurization occasion that exhaust gas volumn is big and electricity price is cheap (as large thermal power plant flue gas desulfurization).
[background technology]
A kind of device and method that waste gas is carried out desulfurization with chlor-alkali/sodium sulphate method was disclosed among the disclosed Chinese invention patent application CN 1389289A on January 8th, 2003.In this flue gas desulphurization unit, salt (NaCl) is as raw material, and electrolysis in the electrolytic cell in this device generates desulfurizing agent NaOH solution, and desulfurizing agent is delivered in the interior fume desulfurizing tower of this device flue gas is carried out desulfurizing and purifying.Flue gas after being purified is discharged to atmosphere.Products such as the treated generation glauber salt of desulfurization wastewater, sulfuric acid, sulfur dioxide liquid.Electrolytic cell in this device is gone back association hydrogen (H in electrolytic process
2) and chlorine (Cl
2).The storage of these hydrogen and chlorine and transportation are all comparatively difficult, and processing and utilizing is improper not only can to cause new pollution, also can cause the wasting of resources.
[summary of the invention]
Technical problem to be solved by this invention is, at the defective of prior art, provides a kind of comprehensive utilization device and method of flue gas desulfurization byproduct, and directly hydrogen that flue gas desulfurization is produced and chlorine synthesize generation final products PVC.
For solving the problems of the technologies described above, the present invention is achieved through the following technical solutions:
A kind of comprehensive utilization device of flue gas desulfurization byproduct, it is characterized in that: comprise flue gas desulfur device, acetylene generator and PVC synthesizer, hydrogen and chlorine that described flue gas desulfur device generates import to described PVC synthesizer, the acetylene that described acetylene generator generates also imports in the described PVC synthesizer, and described hydrogen, chlorine and acetylene is the synthetic PVC that generates in described PVC synthesizer.
A kind of method of comprehensive utilization of flue gas desulfurization byproduct, its step comprises:
The dense NaCl electrolysis of solutions is generated hydrogen, chlorine and concentrated NaOH solution;
With NaOH be the solution of main component as desulfurizing agent, waste gas is carried out washing desulphurization;
Desulfurization wastewater carries out sulfur dioxide with sulfuric acid and resolves generation gaseous sulfur dioxide and concentrated sulfuric acid sodium solution, and portion gas sulfur dioxide is made sulfuric acid, and concentrated sulfuric acid sodium solution concentrates or crystallization generates solid sodium sulfate;
Hydrogen and chlorine that electrolysis is generated import the PVC synthesizer;
Calcium carbide is generated acetylene in acetylene generator, acetylene is imported to the PVC synthesizer;
With hydrogen, chlorine and the acetylene synthetic PVC that generates in the PVC synthesizer.
The present invention is by carrying out process integration with chlor-alkali/sodium sulphate method flue gas desulfurization technique and PVC technology, it is compared with the PVC device with the independent chlor-alkali/sodium sulphate method flue gas desulfur device of building respectively, low cost of investment is arranged, low production cost, the good effect of high economical operation benefit.Chlor-alkali/the chlorine of sodium sulphate method flue gas desulfur device generation and the accumulating difficult problem of hydrogen have been avoided simultaneously.This is that reasonably optimizing fully utilizes the result of these potential resources because the present invention has fully excavated the potential resource separately of chlor-alkali/sodium sulphate method flue gas desulfurization technique and PVC technology.
[description of drawings]
Fig. 1 is the structure chart of the comprehensive utilization device of flue gas desulfurization byproduct of the present invention.
[specific embodiment]
With reference to shown in Figure 1, the comprehensive utilization device of flue gas desulfurization byproduct of the present invention comprises flue gas desulfur device 1, PVC synthesizer 2 and acetylene generator 3.
Flue gas desulfur device 1 is identical with the disclosed flue gas desulfur device of CN 1389289A Chinese invention patent application, comprising: at least one desulfurization washing tower, and sulfur dioxide flue gas is carried out desulfurization therein handle, generate flue gas and desulfurization wastewater up to standard; The two chambers of at least one film cationic membrane electrolytic cell, the cathode chamber of electrolytic cell is connected with desulfurization washing tower by one first conduit, and dense NaCl solution in the chamber electrolysis of groove inner anode, is generated hydrogen, chlorine and concentrated NaOH solution; At least one sulfur dioxide resolver is connected with desulfurization washing tower by one second conduit; At least one finished product sulfuric acid generating apparatus is introduced finished product sulfuric acid generating apparatus by one the 3rd conduit with the gaseous sulfur dioxide in the sulfur dioxide resolver; At least one sodium sulphate concentrates or crystallization apparatus, by one the 5th conduit the concentrated sulfuric acid sodium solution in the sulfur dioxide resolver is introduced that sodium sulphate concentrates or crystallization apparatus in.Desulfurization wastewater carries out sulfur dioxide with sulfuric acid and resolves generation gaseous sulfur dioxide and concentrated sulfuric acid sodium solution, and portion gas sulfur dioxide is made sulfuric acid, and concentrated sulfuric acid sodium solution concentrates or crystallization generates solid sodium sulfate.
To carry out hydrogen and the chlorine importing PVC synthesizer 2 that flue gas desulfurization generates at flue gas desulfur device 1.Simultaneously, be raw material with the calcium carbide, generate acetylene by acetylene generator 3, also import PVC synthesizer 2.Hydrogen, chlorine and acetylene is the synthetic PVC that generates in PVC synthesizer 2.
The method of comprehensive utilization of flue gas desulfurization byproduct of the present invention is as follows:
The dense NaCl electrolysis of solutions is generated hydrogen, chlorine and concentrated NaOH solution;
With NaOH be the solution of main component as desulfurizing agent, waste gas is carried out washing desulphurization;
Desulfurization wastewater carries out sulfur dioxide with sulfuric acid and resolves generation gaseous sulfur dioxide and concentrated sulfuric acid sodium solution, and portion gas sulfur dioxide is made sulfuric acid, and concentrated sulfuric acid sodium solution concentrates or crystallization generates solid sodium sulfate;
Hydrogen and chlorine that electrolysis is generated import the PVC synthesizer;
Calcium carbide is generated acetylene in acetylene generator, acetylene is imported to the PVC synthesizer;
With hydrogen, chlorine and the acetylene synthetic PVC that generates in the PVC synthesizer.
Claims (3)
1. the comprehensive utilization device of a flue gas desulfurization byproduct, it is characterized in that: comprise flue gas desulfur device, acetylene generator and PVC synthesizer, hydrogen and chlorine that described flue gas desulfur device generates import to described PVC synthesizer, the acetylene that described acetylene generator generates also imports in the described PVC synthesizer, and described hydrogen, chlorine and acetylene is the synthetic PVC that generates in described PVC synthesizer.
2. the comprehensive utilization device of flue gas desulfurization byproduct according to claim 1, it is characterized in that: described flue gas desulfur device comprises:
At least one desulfurization washing tower;
The two chambers of at least one film cationic membrane electrolytic cell, the cathode chamber of electrolytic cell is connected with desulfurization washing tower by one first conduit;
At least one sulfur dioxide resolver is connected with desulfurization washing tower by one second conduit;
At least one finished product sulfuric acid generating apparatus is introduced finished product sulfuric acid generating apparatus by one the 3rd conduit with the gaseous sulfur dioxide in the sulfur dioxide resolver;
At least one sodium sulphate concentrates or crystallization apparatus, by one the 5th conduit the concentrated sulfuric acid sodium solution in the sulfur dioxide resolver is introduced that sodium sulphate concentrates or crystallization apparatus in.
3. the method for comprehensive utilization of a flue gas desulfurization byproduct, its step comprises:
The dense NaCl electrolysis of solutions is generated hydrogen, chlorine and concentrated NaOH solution;
With NaOH be the solution of main component as desulfurizing agent, waste gas is carried out washing desulphurization;
Desulfurization wastewater carries out sulfur dioxide with sulfuric acid and resolves generation gaseous sulfur dioxide and concentrated sulfuric acid sodium solution, and portion gas sulfur dioxide is made sulfuric acid, and concentrated sulfuric acid sodium solution concentrates or crystallization generates solid sodium sulfate;
Hydrogen and chlorine that electrolysis is generated import the PVC synthesizer;
Calcium carbide is generated acetylene in acetylene generator, acetylene is imported to the PVC synthesizer;
With hydrogen, chlorine and the acetylene synthetic PVC that generates in the PVC synthesizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100987880A CN100478053C (en) | 2004-12-14 | 2004-12-14 | Flume desulfuration byproduct integral utilization device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100987880A CN100478053C (en) | 2004-12-14 | 2004-12-14 | Flume desulfuration byproduct integral utilization device and method |
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| Publication Number | Publication Date |
|---|---|
| CN1788826A true CN1788826A (en) | 2006-06-21 |
| CN100478053C CN100478053C (en) | 2009-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100987880A Expired - Fee Related CN100478053C (en) | 2004-12-14 | 2004-12-14 | Flume desulfuration byproduct integral utilization device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934189A (en) * | 2010-08-23 | 2011-01-05 | 中冶建筑研究总院有限公司 | Method for oxidizing dry-method or semidry-method flue gas desulfurization by-product |
| CN103638804A (en) * | 2013-12-24 | 2014-03-19 | 常州和方环保科技有限公司 | Electrochemical desulphurization method and application of intermediate product |
-
2004
- 2004-12-14 CN CNB2004100987880A patent/CN100478053C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934189A (en) * | 2010-08-23 | 2011-01-05 | 中冶建筑研究总院有限公司 | Method for oxidizing dry-method or semidry-method flue gas desulfurization by-product |
| CN101934189B (en) * | 2010-08-23 | 2013-01-23 | 中冶建筑研究总院有限公司 | Method for oxidizing dry-method or semidry-method flue gas desulfurization by-product |
| CN103638804A (en) * | 2013-12-24 | 2014-03-19 | 常州和方环保科技有限公司 | Electrochemical desulphurization method and application of intermediate product |
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| Publication number | Publication date |
|---|---|
| CN100478053C (en) | 2009-04-15 |
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Granted publication date: 20090415 Termination date: 20131214 |