CN103950901A - Method of converting sulfur dioxide into sulfuric acid - Google Patents
Method of converting sulfur dioxide into sulfuric acid Download PDFInfo
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- CN103950901A CN103950901A CN201410186104.6A CN201410186104A CN103950901A CN 103950901 A CN103950901 A CN 103950901A CN 201410186104 A CN201410186104 A CN 201410186104A CN 103950901 A CN103950901 A CN 103950901A
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- sulfuric acid
- ionization chamber
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- water vapor
- sulfur dioxide
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Abstract
The invention discloses a method of converting sulfur dioxide into sulfuric acid and belongs to the technical field of smoke treatment. The method comprises the following steps: under a condition that the temperature is ranged from -10 DEG C to 30 DEG C, combining smoke and a powdery metallic oxide; then, adding oxygen and water vapor in a certain concentration into the smoke; feeding the fused mixed gas into an ionization chamber; applying a 20KV-200KV voltage to a power supply line in the ionization chamber; and reacting for 4-6 minutes to convert sulfur dioxide into sulfuric acid, wherein the conversion ratio can reach 70-90%. The method not only enhances the conversion ratio, but also saves a lot of cost.
Description
Technical field
The present invention relates to flue gas processing technology field, be specifically related to a kind of method that is sulfuric acid by Sulphur Dioxide.
Background technology
In Industrial processes, in order to make flue gas reach environment protection emission requirement, need to carry out desulfurization processing to the sulfurous gas in flue gas, in general flue gas, all contain sulfide, while processing at normal temperatures, Sulphur Dioxide is that the conversion rate of sulfuric acid is slow, efficiency is low, can waste so a large amount of noble metal catalysts, causes the rising of cost.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of method that is sulfuric acid by Sulphur Dioxide, by add specific combination of gases in flue gas, form new mixed gas, in ionization chamber, carry out high pressure converted, thereby form sulfuric acid.
Technical scheme of the present invention is as follows:
A kind of method that is sulfuric acid by Sulphur Dioxide, be under the condition of-10 DEG C to 30 DEG C in temperature, flue gas is combined with pulverous metal oxide, then in flue gas, add oxygen and water vapor, the concentration of described oxygen is 5%-40%, the concentration of described water vapor is 50ppm-1000ppm, the concentration of described metal oxide is 20ppm-800ppm, mixed gas after merging is fed through in ionization chamber, on supply lead in ionization chamber, connect the voltage of 20KV-200KV, through the reaction of 4-6min, be converted into sulfuric acid.
As preferably, described voltage is between 30KV-200KV.
Beneficial effect: the present invention, by above method, can at normal temperatures, be sulfuric acid by Sulphur Dioxide quickly and efficiently, has not only promoted transformation efficiency, and has saved a large amount of costs.
Embodiment
To the technical scheme in the embodiment of the present invention be clearly and completely described below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
A kind of method that is sulfuric acid by Sulphur Dioxide, be under the condition of-10 DEG C to 0 DEG C in temperature, flue gas is combined with pulverous metal oxide, then in flue gas, add oxygen and water vapor, the concentration of described oxygen is 5%%, the concentration of described water vapor is 800ppm, the concentration of described metal oxide is 100ppm, mixed gas after merging is fed through in ionization chamber, on supply lead in ionization chamber, connect the voltage of 100KV-200KV, through the reaction of 4-5min, be converted into sulfuric acid, transformation efficiency can arrive 70%.
Embodiment 2
A kind of method that is sulfuric acid by Sulphur Dioxide, be under the condition of-5 DEG C to 10 DEG C in temperature, flue gas is combined with pulverous metal oxide, then in flue gas, add oxygen and water vapor, the concentration of described oxygen is 5%, the concentration of described water vapor is 300ppm, the concentration of described metal oxide is 700ppm, mixed gas after merging is fed through in ionization chamber, on supply lead in ionization chamber, connect the voltage of 30KV-100KV, through the reaction of 5-6min, be converted into sulfuric acid, transformation efficiency can arrive 80%.
Embodiment 3
A kind of method that is sulfuric acid by Sulphur Dioxide, be under the condition of 0 DEG C to 15 DEG C in temperature, flue gas is combined with pulverous metal oxide, then in flue gas, add oxygen and water vapor, the concentration of described oxygen is 40%, the concentration of described water vapor is 50ppm, the concentration of described metal oxide is 300ppm, mixed gas after merging is fed through in ionization chamber, on supply lead in ionization chamber, connect the voltage of 50KV-150KV, through the reaction of 5-6min, be converted into sulfuric acid, transformation efficiency can arrive 85%.
Embodiment 4
A kind of method that is sulfuric acid by Sulphur Dioxide under normal temperature, be under the condition of 13 DEG C to 30 DEG C in temperature, flue gas is combined with pulverous metal oxide, then in flue gas, add oxygen and water vapor, the concentration of described oxygen is 30%, the concentration of described water vapor is 1000ppm, the concentration of described metal oxide is 600ppm, mixed gas after merging is fed through in ionization chamber, on supply lead in ionization chamber, connect the voltage of 20KV-150KV, through the reaction of 5-6min, be converted into sulfuric acid, transformation efficiency can reach 90%.
Above-described is only the preferred implementation of a kind of method that is sulfuric acid by Sulphur Dioxide of the present invention; should be understood that; for the person of ordinary skill of the art; without departing from the concept of the premise of the invention; can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (2)
1. the method that is sulfuric acid by Sulphur Dioxide, it is characterized in that, be under the condition of-10 DEG C to 30 DEG C in temperature, sulfurous gas is combined with pulverous metal oxide, then in sulfurous gas, add oxygen and water vapor, the concentration of described oxygen is 5%-40%, the concentration of described water vapor is 50ppm-1000ppm, the concentration of described metal oxide is 20ppm-800ppm, mixed gas after merging is fed through in ionization chamber, on supply lead in ionization chamber, connect the voltage of 20KV-200KV, through the reaction of 4-6min, be converted into sulfuric acid.
2. a kind of method that is sulfuric acid by Sulphur Dioxide according to claim 1, is characterized in that, described voltage is between 30KV-200KV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410186104.6A CN103950901A (en) | 2014-05-05 | 2014-05-05 | Method of converting sulfur dioxide into sulfuric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410186104.6A CN103950901A (en) | 2014-05-05 | 2014-05-05 | Method of converting sulfur dioxide into sulfuric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103950901A true CN103950901A (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410186104.6A Pending CN103950901A (en) | 2014-05-05 | 2014-05-05 | Method of converting sulfur dioxide into sulfuric acid |
Country Status (1)
| Country | Link |
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| CN (1) | CN103950901A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847937A (en) * | 2019-03-04 | 2019-06-07 | 佛山华碳环境科技有限公司 | A kind of electric precipitation defogging method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1513753A (en) * | 2003-06-13 | 2004-07-21 | 大连海事大学 | Method of producing sulfuric acid using hydroxg oxidation of sulfur dioxide |
| CN1600409A (en) * | 2004-08-24 | 2005-03-30 | 浙江大学 | Method for removing multipollutant in flue gas by combining free radical showering and absorption of alkali liquor |
| CN103028326A (en) * | 2012-11-27 | 2013-04-10 | 刘立文 | Method for treating waste in process of producing sulfuric acid from calcium sulfate |
-
2014
- 2014-05-05 CN CN201410186104.6A patent/CN103950901A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1513753A (en) * | 2003-06-13 | 2004-07-21 | 大连海事大学 | Method of producing sulfuric acid using hydroxg oxidation of sulfur dioxide |
| CN1600409A (en) * | 2004-08-24 | 2005-03-30 | 浙江大学 | Method for removing multipollutant in flue gas by combining free radical showering and absorption of alkali liquor |
| CN103028326A (en) * | 2012-11-27 | 2013-04-10 | 刘立文 | Method for treating waste in process of producing sulfuric acid from calcium sulfate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847937A (en) * | 2019-03-04 | 2019-06-07 | 佛山华碳环境科技有限公司 | A kind of electric precipitation defogging method |
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Application publication date: 20140730 |