CN1329289C - Method for preparing sulfuric acid by using sulfur from gas turbine - Google Patents
Method for preparing sulfuric acid by using sulfur from gas turbine Download PDFInfo
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- CN1329289C CN1329289C CNB2005100947483A CN200510094748A CN1329289C CN 1329289 C CN1329289 C CN 1329289C CN B2005100947483 A CNB2005100947483 A CN B2005100947483A CN 200510094748 A CN200510094748 A CN 200510094748A CN 1329289 C CN1329289 C CN 1329289C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The present invention relates to a method for preparing sulfuric acid by using sulfur from a gas turbine, which belongs to the technical field of inorganic chemical industry. Liquid sulfur enters a sulfur incinerating furnace after pressurized to react with material oxygen compressed by a compressor for generating SO2, and SO2 further reacts with the oxygen under high pressure to generate SO3. The reacted fume enters the gas turbine to do work, and a generator is driven to generate electricity. The fume discharged by the gas turbine enters an absorbing system, SO3 is absorbed to generate concentrated sulfuric acid, and SO2 in tail gas returns to the compressor. The present invention has the advantages of great heat efficiency improvement, large investment reduction and space saving.
Description
Technical field: the invention belongs to the inorganic chemical industry production field, be specifically related to a kind of sulphur of internal combustion turbine that utilizes and prepare the vitriolic method.
Background technology: at present, the technical process of acid production with sulphur both at home and abroad is for molten sulphur, burning, waste heat boiler cooling, catalyst transform, the absorption tower absorbs.Afterheat boiler system produces superheated vapour, advances the steam turbine installation generating.The subject matter here is that power supplying efficiency is low, what promptly generating utilized is the vapor expansion acting, and water becomes the latent heat of steam and just is not used at all, makes that the power supplying efficiency of whole acid production with sulphur is extremely low, and the steam turbine installation that power supplying efficiency is high also only is about 40% in the world.So, if this technical process does not change, the various effort in the sulfuric acid industry at present also can't make the power supplying efficiency of acid production with sulphur be significantly improved.
And gas turbine installation more and more is widely used as a kind of thermodynamic device efficiently.The gas turbine installation that power supplying efficiency is high in the world at present can reach 56%, and there is ample room for improvement.Simple constant-pressure gas turbine device major equipment has internal combustion turbine, pneumatic plant and combustion chamber.
Summary of the invention: the objective of the invention is gas turbine application in acid production with sulphur, thereby a kind of acid production with sulphur novel process is provided.The effect of its maximum is the better simply power supplying efficiency that just can improve acid production with sulphur.In addition, because what advance that internal combustion turbine needs is high-pressure gas, this just makes SO
2And O
2Need not catalyst, directly generate SO
3Thereby, saved complicated conversion workshop section.
The present invention is achieved like this: the preparation method is that Molten sulphur is pressurized to more than the 2.0MPa, enters sulfur furnace, with the oxygen reaction generation SO more than the pressure 2.0MPa
2, at 2.0MPa with under the upward pressure, SO
2Further generate SO with oxygen reaction
3, reacted temperature is more than 700 ℃, and this flue gas enters the internal combustion turbine acting, drives generator for electricity generation, and the flue gas that internal combustion turbine is discharged advances absorption system, SO
3Be absorbed to generate sulfuric acid.
The flue-gas temperature of internal combustion turbine outlet is higher than 120 ℃, and the flue gas pressures (gauge pressure) of internal combustion turbine outlet is higher than 100mmH
2O.
Description of drawings: accompanying drawing 1 utilizes the acid production with sulphur schematic flow sheet of internal combustion turbine for the embodiment of the invention.In the accompanying drawing 1,1 is sulfur melting groove, and 2 is sulfur furnace, and 3 is pneumatic plant, and 4 is internal combustion turbine, and 5 is generator, and 6 is absorption system.2,3,4 common formation gas turbine installations.3,4,5 on same axis.When flue gas expands acting promotion 4 rotations, can drive 3,5 rotations simultaneously like this.
Embodiment: the present invention is described in detail below in conjunction with drawings and Examples.
From accompanying drawing 1 as can be seen, general industry sulphur is fused into 140 ℃ Molten sulphur in sulfur melting groove 1, and the clarification back is pressurized to more than the 3.0MPa by the sulphur pump, sprays into sulfur furnace 2 (being the combustion chamber) and oxygen combustion, and reaction generates SO
2, because the high pressure in the stove, more than 2.0MPa, SO
2Further react generation SO with oxygen
3, transformation efficiency is more than 80%.Temperature is controlled at 700～1500 ℃ in the stove.High temperature and high pressure flue gas enters internal combustion turbine 4, promotes the blade rotation, drives generator 5 generatings on the one hand, drives pneumatic plant 3 compression unstripped gass on the one hand.(gauge pressure is higher than 100mmH in step-down to finish the flue gas cool-down (being higher than 120 ℃) of merit
2O), enter absorption system 6.Absorption system SO
3Specific absorption surpass 99.95%.Because a part of rare gas element can be sneaked into by system when operation.Then at absorption system with the emptying of part tail gas.Content of sulfur dioxide is less than 960mg/Nm in the tail gas
3The gas main component that absorbed is oxygen and sulfurous gas, enters pneumatic plant once more.Raw material oxygen enters absorption system, dry and heat after, enter pneumatic plant, be compressed to and enter sulfur furnace after being higher than 2.0MPa.
With 300,000 tons of sulphur-burning sulphuric acid plants is example.Sulfur melting groove per hour melts 12.3 tons of sulphur with steam, and the Molten sulphur temperature is controlled at about 140 ℃.Horizontal pump is that the Molten sulphur of 12.3t/h is pressurized to and sprays into sulfur furnace more than the 3.0MPa with flow.13000m
3The pure oxygen of/h flow enters pneumatic plant and is compressed and enters sulfur furnace after the absorption system drying heats.Burning tempestuously takes place in sulphur and oxygen in stove, reaction generates SO
2, because the high pressure in the stove, more than 3.0MPa, SO
2Further react generation SO with oxygen
3, transformation efficiency is more than 80%.Temperature is controlled at 900～1500 ℃ in the stove.Flue gas is imported into internal combustion turbine then, and the acting of constantly expanding promotes the blade rotation.Drive generator for electricity generation on the one hand, power supplying efficiency surpasses 47%, and sour generated energy promptly per ton is more than 400 degree.Drive the pneumatic plant pressurized gas on the one hand, promptly with respect to traditional acid production with sulphur, 1875 degree per hour can economize on electricity.(gauge pressure is higher than 400mmH in step-down to finish the flue gas cool-down (being higher than 160 ℃) of merit
2O), enter absorption system.Absorption system produces the vitriol oil (100%H
2SO
4Meter) 37.5 ton/hour.SO
3Specific absorption surpass 99.95%.Because a part of rare gas element can be sneaked into by system when operation.Then at absorption system with the emptying of part tail gas.Content of sulfur dioxide is less than 960mg/Nm in the tail gas
3The gas main component that absorbed is oxygen and sulfurous gas, enters pneumatic plant once more.
Claims (3)
1, a kind of sulphur of internal combustion turbine that utilizes prepares the vitriolic method, it is characterized in that Molten sulphur is pressurized to more than the 2.0MPa, enters sulfur furnace, with the oxygen reaction generation SO more than the pressure 2.0MPa
2, at 2.0MPa with under the upward pressure, SO
2Further generate SO with oxygen reaction
3, reacted temperature is more than 700 ℃, and this flue gas enters the internal combustion turbine acting, drives generator for electricity generation, and the flue gas that internal combustion turbine is discharged advances absorption system, SO
3Be absorbed to generate sulfuric acid.
2,, it is characterized in that the flue-gas temperature of internal combustion turbine outlet is higher than 120 ℃ according to the described preparation vitriolic of claim 1 method.
3,, it is characterized in that the flue gas gauge pressure of internal combustion turbine outlet is higher than 100mmH according to the described preparation vitriolic of claim 1 method
2O.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100947483A CN1329289C (en) | 2005-10-13 | 2005-10-13 | Method for preparing sulfuric acid by using sulfur from gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100947483A CN1329289C (en) | 2005-10-13 | 2005-10-13 | Method for preparing sulfuric acid by using sulfur from gas turbine |
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| Publication Number | Publication Date |
|---|---|
| CN1749154A CN1749154A (en) | 2006-03-22 |
| CN1329289C true CN1329289C (en) | 2007-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100947483A Active CN1329289C (en) | 2005-10-13 | 2005-10-13 | Method for preparing sulfuric acid by using sulfur from gas turbine |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104229755A (en) * | 2013-06-24 | 2014-12-24 | 王荷琴 | Method for preparing sulfuric acid from sulfur |
| CN111003694A (en) * | 2019-12-23 | 2020-04-14 | 福建永荣科技有限公司 | Environment-friendly process for preparing concentrated sulfuric acid by adopting sulfur |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0002737A1 (en) * | 1977-12-16 | 1979-07-11 | E.I. Du Pont De Nemours And Company | A process for making sulfuric acid anhydride and, if desired, sulfuric acid and/or oleum |
| EP0158744A1 (en) * | 1984-04-17 | 1985-10-23 | European Atomic Energy Community (Euratom) | Process for storing thermal energy and process for liberating mechanical energy |
| CN2232438Y (en) * | 1995-12-18 | 1996-08-07 | 张元庆 | Flue-gas incinerating sulfur preparation acid device |
| JPH11263606A (en) * | 1998-03-13 | 1999-09-28 | Ishikawajima Harima Heavy Ind Co Ltd | Sulfuric acid producing equipment |
| CN1385363A (en) * | 2002-06-25 | 2002-12-18 | 南化集团研究院 | Recovery and use for dilute acid in boiling furnace mixing-burning sulphur production installation |
-
2005
- 2005-10-13 CN CNB2005100947483A patent/CN1329289C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0002737A1 (en) * | 1977-12-16 | 1979-07-11 | E.I. Du Pont De Nemours And Company | A process for making sulfuric acid anhydride and, if desired, sulfuric acid and/or oleum |
| EP0158744A1 (en) * | 1984-04-17 | 1985-10-23 | European Atomic Energy Community (Euratom) | Process for storing thermal energy and process for liberating mechanical energy |
| CN2232438Y (en) * | 1995-12-18 | 1996-08-07 | 张元庆 | Flue-gas incinerating sulfur preparation acid device |
| JPH11263606A (en) * | 1998-03-13 | 1999-09-28 | Ishikawajima Harima Heavy Ind Co Ltd | Sulfuric acid producing equipment |
| CN1385363A (en) * | 2002-06-25 | 2002-12-18 | 南化集团研究院 | Recovery and use for dilute acid in boiling furnace mixing-burning sulphur production installation |
Non-Patent Citations (1)
| Title |
|---|
| "国外硫酸工业进展" 茆卫兵，硫酸工业，第2000年第6期卷 2000 * |
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|---|---|
| CN1749154A (en) | 2006-03-22 |
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Address after: 100029 No. 6, Xinjie Xinjie, Chaoyang District, Beijing, Huidong Patentee after: CHINA PETROCHEMICAL Corp. Patentee after: SINOPEC NANJING CHEMICAL RESEARCH INSTITUTE Co.,Ltd. Address before: 100029 No. 6, Xinjie Xinjie, Chaoyang District, Beijing, Huidong Patentee before: CHINA PETROCHEMICAL Corp. Patentee before: Nanhua Group Research Institute |
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