CN103058147A - Absorption device and method for producing sulfur trioxide by using gypsum - Google Patents
Absorption device and method for producing sulfur trioxide by using gypsum Download PDFInfo
- Publication number
- CN103058147A CN103058147A CN2013100045807A CN201310004580A CN103058147A CN 103058147 A CN103058147 A CN 103058147A CN 2013100045807 A CN2013100045807 A CN 2013100045807A CN 201310004580 A CN201310004580 A CN 201310004580A CN 103058147 A CN103058147 A CN 103058147A
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- CN
- China
- Prior art keywords
- absorption
- tubing
- pipeline
- gypsum
- sulphur trioxide
- 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.)
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- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 50
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 16
- 239000010440 gypsum Substances 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 239000002253 acid Substances 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims abstract description 13
- 230000003068 static effect Effects 0.000 claims abstract description 12
- 230000007704 transition Effects 0.000 claims abstract description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 235000011149 sulphuric acid Nutrition 0.000 claims description 4
- 239000001117 sulphuric acid Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical compound OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 229960003512 nicotinic acid Drugs 0.000 description 3
- 235000001968 nicotinic acid Nutrition 0.000 description 3
- 239000011664 nicotinic acid Substances 0.000 description 3
- 239000003595 mist Substances 0.000 description 2
- 231100000987 absorbed dose Toxicity 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- HIFJUMGIHIZEPX-UHFFFAOYSA-N sulfuric acid;sulfur trioxide Chemical compound O=S(=O)=O.OS(O)(=O)=O HIFJUMGIHIZEPX-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to an absorption device and a method for producing sulfur trioxide by using gypsum. The device comprises an acid liquid pump and a liquid delivery pipe. A liquid outlet of the acid liquid pump is connected with the liquid delivery pipe through a flange. The liquid delivery pipe is composed of three sections of pipelines. The front-section pipeline has a cylindrical structure. The middle-section pipeline has a conical structure, and is a transition section. The back-section pipeline has a cylindrical structure. A bonding position of the middle-section pipeline and the back-section pipeline of the liquid delivery pipe is provided with a gas pipe used for delivery sulfur trioxide. A static mixer is arranged in the back-section pipeline of the liquid delivery pipe. The invention also provides an absorption method for producing sulfur trioxide by using gypsum. According to the invention, with a Venturi effect principle, and with the enhanced mixing effect of the static mixer, absorption amount of sulfur trioxide in absorption liquid is increased, and sulfur trioxide absorption rate is no lower than 90%.
Description
Technical field
The present invention relates to a kind of absorption unit and method of sulphur trioxide, especially relate to a kind of absorption unit and method of utilizing gypsum to produce sulphur trioxide.
Background technology
In sulphuric acid process, the absorption of sulphur trioxide is generally adopted water directly to absorb or is adopted finite concentration sulfuric acid to absorb.When adopting finite concentration sulfuric acid absorption sulphur trioxide, can emit a large amount of heats, the severe corrosive of this heat and sulfuric acid can be accelerated the corrosion to the absorption tower material, and expellant gas is easy to sulfur trioxide gas is taken out of under the high temperature simultaneously; And during the water sulfur trioxide absorption, also can emit a large amount of heats, and easily produce acid mist, thus etching apparatus.In addition, this technology also is difficult to fully sulphur trioxide be absorbed, and the part sulphur trioxide can be discharged in the atmosphere, contaminate environment.
CN201660444U discloses a kind of fuming sulfuric acid system two-stage absorption unit on December 1st, 2010, this kind absorption unit comprises the nicotinic acid tower, the nicotinic acid tower is provided with up and down two-stage absorption tower, following first step absorption tower is connected to dense smoke acid circulation groove, top absorption tower, the second stage is connected to rare nicotinic acid circulation groove, absorb through two-stage, the specific absorption of sulphur trioxide can reach 60-65%, but specific absorption is still lower.
CN202164117U discloses a kind of sulphur trioxide absorption reaction device on March 14th, 2012, mainly comprise sulphur trioxide gas storage tower, reaction tower, liquid absorbing pump, reaction tower upper lateral part and sulphur trioxide gas storage tower pass through pipeline connection, the reaction tower top is provided with sulfuric acid fluid inlet, sprinkler head, liquid outlet, liquid return hole are arranged at the bottom, liquid return hole is communicated with sprinkler head by liquid absorbing pump, pipeline, also is provided with the pH sensor at the liquid return hole of reaction tower.This reaction unit increases sulfuric acid to the absorption of sulphur trioxide by absorbing sulfuric acid with circulation, and the defective of its existence is that whole process efficiency is too low, is difficult to realize industrialization.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of difficult generation acid mist, absorption unit and the method for utilizing gypsum production sulphur trioxide that assimilated efficiency is high.
The technical scheme that the present invention solves its technical problem employing is:
The present invention's the gypsum that utilizes is produced the absorption unit of sulphur trioxide, comprise acid pump and tubing, the liquid outlet of described acid pump links to each other with tubing by flange, described tubing is made of three sections pipelines, and the leading portion pipeline is column structure, the tapered structure of stage casing pipeline, be transition section, the back segment pipeline is column structure, and the stage casing pipeline of described tubing and the binding site of back segment pipeline are provided be used to the tracheae that passes into sulfur trioxide gas, are provided with static mixer in the back segment pipeline of described tubing.
Further, described leading portion pipeline is (1.5-3) with the ratio of the caliber of back segment pipeline: 1 (preferred 1.8-2.5:1).
Further, the outlet of described static mixer is provided with the acid solution discharge nozzle.
The present invention's the absorption process that utilizes gypsum to produce sulphur trioxide is: start acid pump, absorption liquid is under the effect of acid pump, through liquid outlet, injection enters tubing, and the stage casing pipeline of tubing makes the mobile generation Venturi effect of absorption liquid, produces negative pressuren zone at the tracheae place, sulphur trioxide is inhaled into tubing, and then under the effect of static mixer, sulfurous gas and absorption liquid react, and discharge by the acid solution discharge nozzle at last.
Further, described absorption liquid is that water or concentration are greater than the sulphuric acid soln of 60wt%.
The present invention utilizes the principle of Venturi effect, cooperates the enhancing mixed effect of static mixer, increases the absorbed dose of sulphur trioxide in absorption liquid, the specific absorption of sulphur trioxide 〉=90%.
Description of drawings
Fig. 1 is that the gypsum that utilizes of present embodiment is produced the structural representation of the absorption unit of sulphur trioxide.
Embodiment
The invention will be further described below in conjunction with embodiment.
With reference to accompanying drawing, the gypsum that utilizes of present embodiment is produced the absorption unit of sulphur trioxide, comprise acid pump 1 and tubing 2, the liquid outlet of described acid pump 1 links to each other with tubing 2 by flange, described tubing 2 is made of three sections pipelines, the leading portion pipeline is column structure, the tapered structure of stage casing pipeline, be transition section, the back segment pipeline is column structure, the stage casing pipeline of described tubing 2 and the binding site of back segment pipeline are provided be used to the tracheae 4 that passes into sulfur trioxide gas, are provided with static mixer 3 in the back segment pipeline of described tubing 2.
Described leading portion pipeline is 2:1 with the ratio of the caliber of back segment pipeline.
The outlet of described static mixer 3 is provided with acid solution discharge nozzle 5.
The absorption process that utilizes gypsum to produce sulphur trioxide of present embodiment is: start acid pump 1, absorption liquid is under the effect of acid pump 1, through liquid outlet, injection enters tubing 2, and the transition section of tubing 2 makes the mobile generation Venturi effect of absorption liquid, produces negative pressuren zone at tracheae 4 places, sulphur trioxide is inhaled into tubing 2, and then under the effect of static mixer 3, sulfurous gas and absorption liquid react, and discharge by acid solution discharge nozzle 5 at last.
Described absorption liquid is water.Certainly, described absorption liquid also can be concentration greater than the sulphuric acid soln of 60wt%.
In the present embodiment, the specific absorption of sulphur trioxide reaches 90%.
Claims (5)
1. absorption unit that utilizes gypsum to produce sulphur trioxide, comprise acid pump and tubing, the liquid outlet of described acid pump links to each other with tubing by flange, it is characterized in that: described tubing is made of three sections pipelines, the leading portion pipeline is column structure, the tapered structure of stage casing pipeline, be transition section, the back segment pipeline is column structure, the stage casing pipeline of described tubing and the binding site of back segment pipeline are provided be used to the tracheae that passes into sulfur trioxide gas, are provided with static mixer in the back segment pipeline of described tubing.
2. the absorption unit that utilizes gypsum to produce sulphur trioxide according to claim 1, it is characterized in that: described leading portion pipeline is (1.5-3) with the ratio of the caliber of back segment pipeline: 1.
3. the absorption unit that utilizes gypsum to produce sulphur trioxide according to claim 1 and 2, it is characterized in that: the outlet of described static mixer is provided with the acid solution discharge nozzle.
4. one kind is utilized the gypsum that utilizes of the described absorption unit of claim 1 to produce the absorption process of sulphur trioxide, it is characterized in that: start acid pump, absorption liquid is under the effect of acid pump, and through liquid outlet, injection enters tubing, the transition section of tubing makes the mobile generation Venturi effect of absorption liquid, produce negative pressuren zone at the tracheae place, sulphur trioxide is inhaled into tubing, and then under the effect of static mixer, sulfurous gas and absorption liquid react, and discharge by the acid solution discharge nozzle at last.
5. the absorption process that utilizes gypsum to produce sulphur trioxide according to claim 4 is characterized in that: described absorption liquid is that water or concentration are greater than the sulphuric acid soln of 60wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310004580.7A CN103058147B (en) | 2013-01-07 | 2013-01-07 | A kind of absorption unit and method utilizing gypsum production sulphur trioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310004580.7A CN103058147B (en) | 2013-01-07 | 2013-01-07 | A kind of absorption unit and method utilizing gypsum production sulphur trioxide |
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| Publication Number | Publication Date |
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| CN103058147A true CN103058147A (en) | 2013-04-24 |
| CN103058147B CN103058147B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310004580.7A Active CN103058147B (en) | 2013-01-07 | 2013-01-07 | A kind of absorption unit and method utilizing gypsum production sulphur trioxide |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3788043A (en) * | 1970-10-15 | 1974-01-29 | Metallgesellschaft Ag | Absorber for sulfur trioxide |
| CN1384805A (en) * | 1999-11-01 | 2002-12-11 | 孟山都公司 | Method for making sulfur trioxide, sulfuric acid, and oleum from sulfur dioxide |
| CN1930080A (en) * | 2004-03-12 | 2007-03-14 | 奥托昆普技术公司 | Process and plant for producing sulfuric acid |
| CN203128197U (en) * | 2013-01-07 | 2013-08-14 | 刘立文 | Absorption device for producing sulfur trioxide by utilizing gypsum |
-
2013
- 2013-01-07 CN CN201310004580.7A patent/CN103058147B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3788043A (en) * | 1970-10-15 | 1974-01-29 | Metallgesellschaft Ag | Absorber for sulfur trioxide |
| CN1384805A (en) * | 1999-11-01 | 2002-12-11 | 孟山都公司 | Method for making sulfur trioxide, sulfuric acid, and oleum from sulfur dioxide |
| CN1930080A (en) * | 2004-03-12 | 2007-03-14 | 奥托昆普技术公司 | Process and plant for producing sulfuric acid |
| CN203128197U (en) * | 2013-01-07 | 2013-08-14 | 刘立文 | Absorption device for producing sulfur trioxide by utilizing gypsum |
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| CN103058147B (en) | 2015-08-12 |
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Effective date of registration: 20160829 Address after: An Industrial Park Economic Development Zone, Changde City, Hunan province Linli County 415200 Patentee after: Hunan Fu Xiang new type building material Co., Ltd. Address before: 410005, 12 floor, Haidong mansion, Furong Road, Changsha, Hunan Patentee before: Liu Liwen |