CN103569972A - Preparation method of sulfur dioxide gas in sugar industry - Google Patents
Preparation method of sulfur dioxide gas in sugar industry Download PDFInfo
- Publication number
- CN103569972A CN103569972A CN201310558369.XA CN201310558369A CN103569972A CN 103569972 A CN103569972 A CN 103569972A CN 201310558369 A CN201310558369 A CN 201310558369A CN 103569972 A CN103569972 A CN 103569972A
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- CN
- China
- Prior art keywords
- dioxide gas
- sulfur
- sulfur dioxide
- sulfuric acid
- concentrated sulfuric
- 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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- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 title claims abstract description 142
- 238000002360 preparation method Methods 0.000 title claims description 10
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 65
- 238000006243 chemical reaction Methods 0.000 claims abstract description 31
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 25
- 239000011593 sulfur Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract 11
- 238000002844 melting Methods 0.000 claims description 12
- 230000008018 melting Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 63
- 238000001816 cooling Methods 0.000 abstract description 8
- 239000002994 raw material Substances 0.000 abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 abstract description 4
- 239000001301 oxygen Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 239000005864 Sulphur Substances 0.000 description 31
- 239000003921 oil Substances 0.000 description 20
- 239000008399 tap water Substances 0.000 description 7
- 235000020679 tap water Nutrition 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000001590 oxidative effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 2
- 229930006000 Sucrose Natural products 0.000 description 2
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 2
- 235000010261 calcium sulphite Nutrition 0.000 description 2
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229960004793 sucrose Drugs 0.000 description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
- 239000006188 syrup Substances 0.000 description 2
- 235000020357 syrup Nutrition 0.000 description 2
- 241001313207 Gonepteryx rhamni Species 0.000 description 1
- 241000255964 Pieridae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- -1 consumption is many Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Treating Waste Gases (AREA)
Abstract
本发明涉及一种制糖工业二氧化硫气体的制备方法，其具体步骤为：将浓硫酸和硫磺加入反应容器中，加料结束后，加热至开始反应产生二氧化硫气体，产生的二氧化硫气体冷却至60-70℃，所述的浓硫酸与硫磺的质量比为5-7：1，所述的浓硫酸的质量浓度为93-98.3%。该方法利用浓硫酸氧化单质硫，生产二氧化硫气体，可以较好的解决传统的硫磺燃烧制备糖用二氧化硫气体所存在的诸多问题，同时具有如下的效果：二氧化硫气体量容易控制、升华硫少；产生的二氧化硫气体纯、含氧气量小且温度不高，容易冷却；原料易得、成本低，所使用的硫磺量显著减少；制备二氧化硫气体的装置简单、占地面积小。The invention relates to a method for preparing sulfur dioxide gas in the sugar industry. The specific steps are as follows: adding concentrated sulfuric acid and sulfur into a reaction container, heating until the reaction starts to generate sulfur dioxide gas after the feeding, and cooling the generated sulfur dioxide gas to 60-70 °C, the mass ratio of the concentrated sulfuric acid to sulfur is 5-7:1, and the mass concentration of the concentrated sulfuric acid is 93-98.3%. The method uses concentrated sulfuric acid to oxidize elemental sulfur to produce sulfur dioxide gas, which can better solve many problems existing in the traditional sulfur combustion to prepare sulfur dioxide gas for sugar, and has the following effects at the same time: the amount of sulfur dioxide gas is easy to control, and the amount of sublimated sulfur is less; The sulfur dioxide gas is pure, has low oxygen content and low temperature, and is easy to cool; raw materials are readily available, low in cost, and the amount of sulfur used is significantly reduced; the device for preparing sulfur dioxide gas is simple and occupies a small area.
Description
Technical field
The present invention relates to a kind of preparation method of sugar industry sulfur dioxide gas.
Background technology
At present, cane sugar factory generally adopts sulfurous method sugar refining technology, sulfurous method sugar refining technology is mainly to utilize sulfur dioxide gas to react with milk of lime to generate calcium sulfite precipitation, and calcium sulfite deposit seeds adsorbs non-sucrose composition realizes the clarify and decolorize to Cane Mixed Juice; Sulfurous gas is realized bleaching action by reduction coloring matter simultaneously.Sugar refinery sulfur dioxide gas generally produces by the burning of sulphur in sulphur-furnace, the subject matter of the method has, the sulfur dioxide gas scale of construction is difficult to control, sulphur-furnace and corresponding high temperature sulfur dioxide gas and to the burn into high temperature sulfur dioxide gas of cooling duct cooling, need to consumes a large amount of water coolants, sulfur burning process and produce that more sublimed sulphur, sulfur burning process easily produce sulphur trioxide and sulphur-furnace workshop floor space is large, environmental pollution is serious etc., so prepare sulfur dioxide gas, is the important technology difficult problem that sugar refinery faces always.Although can solve to a certain extent above-mentioned subproblem by transforming traditional sulphur-furnace, but produce, sulphur-furnace is expensive, the easy new problem such as break down.
Summary of the invention
The technical problem to be solved in the present invention is: the novel method that provides a kind of sugar industry sulfur dioxide gas to prepare, the method is utilized vitriol oil capable of oxidizing simple substance sulphur, produce sulfur dioxide gas, can solve preferably traditional sulfur burning preparation sugar existing problems of sulfur dioxide gas, there is following effect: the sulfur dioxide gas scale of construction is easily controlled, sublimed sulphur is few simultaneously; High, the oxygenous amount of sulfur dioxide gas purity that produces is few and temperature is not high, easily cooling; Raw material is easy to get, cost is low, and the sulphur amount of using significantly reduces; The device of preparing sulfur dioxide gas is simple, floor space is little; Above-mentioned problems of the prior art have been solved.
The technical scheme solving the problems of the technologies described above is: a kind of preparation method of sugar industry sulfur dioxide gas, the vitriol oil and sulphur are added in reaction vessel, after reinforced end, be heated to 200-300 ℃ and start reaction generation sulfur dioxide gas, the sulfur dioxide gas producing adopts water quench to 60-70 ℃, the described vitriol oil and the mass ratio of sulphur are 5-7:1, and the mass concentration of the described vitriol oil is 93-98.3%.
Described be heated to start reaction and produce sulfur dioxide gas and refer to that being heated to temperature is 200-250 ℃.
Described sulphur is SULPHUR POWDER, first the vitriol oil is added in reaction vessel, afterwards SULPHUR POWDER is added in reaction vessel, is first heated to SULPHUR POWDER melting, then continues to be heated to start reaction and produces sulfur dioxide gas.
Described sulphur is the Molten sulphur of heating and melting, first Molten sulphur is added in reaction vessel, then adds the vitriol oil, is then heated to start reaction and produces sulfur dioxide gas.
Described sulphur is the Molten sulphur of heating and melting, Molten sulphur and the vitriol oil is added in reaction vessel simultaneously, after reinforced end, continues to be heated to start reaction and produces sulfur dioxide gas.
The present invention proposes novel method prepared by a kind of sugar industry sulfur dioxide gas, and the oxidisability of the method based on the vitriol oil, the in the situation that of heating, gets final product capable of oxidizing simple substance sulphur, produces sulfur dioxide gas, for Sulphitation and Neutralization or the stove drying of syrup secondary of mixing juice.
Principle of the present invention: under the condition of heating, utilize vitriol oil capable of oxidizing simple substance sulphur, produce sulfur dioxide gas.Its principle can be expressed as follows with chemical equation:
2H
2SO
4+S==3SO
2↑+2H
2O
Owing to adopting technique scheme, the preparation method of a kind of sugar industry sulfur dioxide gas of the present invention has following beneficial effect:
1, the sulfur dioxide gas scale of construction is easily controlled, sublimed sulphur is few: in existing technique of producing sulfur dioxide gas by sulfur burning, because sulfur burning is incomplete, there are a large amount of sublimed sulphurs, and the present invention adopts the vitriol oil and sulfur reaction to produce sulfur dioxide gas, by controlling temperature of reaction or sulphur addition, it is the growing amount of adjustable sulfur dioxide gas, Molten sulphur not high due to temperature and melting is submerged in below the liquid level of the liquid vitriol oil, so sublimed sulphur is also less.
2, the sulfur dioxide gas temperature producing is not high, easily cooling, and purity is little compared with high, oxygenous amount: in existing technique of producing sulfur dioxide gas by sulfur burning, need to pass into sufficient air to guarantee the abundant burning of sulphur, therefore can bring because existing excessive oxygen to generate more SO
3and in sulfur dioxide gas, contain excessive oxygen, affect the decolorizing effect of syrup; And do not need to pass into air in production process of the present invention, therefore the SO producing
2in gas, do not have excessive oxygen, do not have SO yet
3, the SO of generation
2gaseous mass is good.In addition, in existing technique of producing sulfur dioxide gas by sulfur burning, the SO obtaining
2gas temperature is higher, cooling difficulty; And the SO that the present invention produces
2gas temperature is generally below 300 ℃, cooling easy.
3, raw material is easy to get, cost is low, the sulphur amount of using significantly reduces: the vitriol oil capable of oxidizing simple substance sulphur that the present invention utilizes raw material to be easy to get, produce sulfur dioxide gas, the vitriol oil is main raw material, consumption is many, and sulphur is auxiliary material, and consumption is few, the cost of the vitriol oil is lower than sulphur, therefore the cost that the present invention produces sulfur dioxide gas with respect to sulfur burning is lower.
4, prepare that the device of sulfur dioxide gas is simple, floor space is little: the present invention is less demanding to production unit, and the device that can carry out stirring and evenly mixing and heating can be used for the present invention, compares with existing brimstone furnace, and device is simple, floor space is little.
Below, the preparation method's of a kind of sugar industry sulfur dioxide gas of the present invention technical characterictic is further described in conjunction with the embodiments.
Embodiment
Embodiment 1:
The vitriol oil 200kg of mass concentration 98.3% is added in reactor, add afterwards SULPHUR POWDER 30kg, after reinforced end mixes, heating makes sulfur melting, then continue to be heated to 280 ℃ of reactions and produce sulfur dioxide gas, the sulfur dioxide gas of generation, utilizes tap water to be cooled to 70 ℃.
Embodiment 2:
The vitriol oil 140kg of mass concentration 93.0% is added in reactor, add afterwards SULPHUR POWDER 20kg, after reinforced end mixes, heating makes sulfur melting, then continue to be heated to 300 ℃ of reactions and produce sulfur dioxide gas, the sulfur dioxide gas of generation, utilizes tap water to be cooled to 60-70 ℃.
Embodiment 3:
The Molten sulphur 30kg of heating and melting is added in reactor, then add the vitriol oil 150kg of mass concentration 97%, after reinforced end, be heated to 250 ℃ of reactions and produce sulfur dioxide gas, the sulfur dioxide gas of generation, utilizes tap water to be cooled to 70 ℃.
Embodiment 4:
The Molten sulphur 15kg of heating and melting is added in reactor, then add the vitriol oil 90kg of mass concentration 97.5%, after reinforced end, be heated to 200 ℃ of reactions and produce sulfur dioxide gas, the sulfur dioxide gas of generation, utilizes tap water to be cooled to 60-70 ℃.
Embodiment 5:
The Molten sulphur of heating and melting is pumped into 120 kg Molten sulphur in reactor by 120 kg metering per hour, by 800 kilograms of meterings per hour, pump into 800 kilograms of the vitriol oils of mass concentration 98.3% simultaneously, after stirring, be heated to 250 ℃ of reactions and produce sulfur dioxide gas, reactor adopts electromagnetic relay to carry out thermostatic control.The sulfur dioxide gas producing, utilizes tap water to be cooled to 70 ℃.
Embodiment 6:
55 kilograms of the Molten sulphur of heating and melting are pumped in reactor, pump into 300 kilograms of the vitriol oils of mass concentration 95.0% simultaneously, after reinforced end, be heated to 230 ℃ and start reaction and produce sulfur dioxide gas, reactor adopts electromagnetic relay to carry out thermostatic control.The sulfur dioxide gas producing, utilizes tap water to be cooled to 70 ℃.
The tap water that utilizes described in various embodiments of the present invention is cooled to 60-70 ℃, and its embodiment can be that sulfur dioxide gas is passed in the interchanger that heat-eliminating medium is water.As a kind of conversion of various embodiments of the present invention, described sulfur dioxide gas can also adopt other modes cooling.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310558369.XA CN103569972B (en) | 2013-11-12 | 2013-11-12 | A kind of preparation method of sugar industry sulfur dioxide gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310558369.XA CN103569972B (en) | 2013-11-12 | 2013-11-12 | A kind of preparation method of sugar industry sulfur dioxide gas |
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| Publication Number | Publication Date |
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| CN103569972A true CN103569972A (en) | 2014-02-12 |
| CN103569972B CN103569972B (en) | 2015-09-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291277A (en) * | 2014-09-26 | 2015-01-21 | 青岛奥盖克化工股份有限公司 | Environment-friendly production process for producing sulfuric acid by using waste sulfuric acid by virtue of sulfur reduction |
| CN117923431A (en) * | 2024-03-14 | 2024-04-26 | 云南化工设计院有限公司 | Method for producing sulfur dioxide by using pyrosulfuric acid and sulfur |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101020570A (en) * | 2006-03-22 | 2007-08-22 | 蒋胜 | Production process of eliminating simple substance sulphur from SO2 gas |
| CN103193206A (en) * | 2013-02-28 | 2013-07-10 | 四川大学 | A kind of method that sulfur reduction decomposes sulfate to produce SO2 |
-
2013
- 2013-11-12 CN CN201310558369.XA patent/CN103569972B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101020570A (en) * | 2006-03-22 | 2007-08-22 | 蒋胜 | Production process of eliminating simple substance sulphur from SO2 gas |
| CN103193206A (en) * | 2013-02-28 | 2013-07-10 | 四川大学 | A kind of method that sulfur reduction decomposes sulfate to produce SO2 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291277A (en) * | 2014-09-26 | 2015-01-21 | 青岛奥盖克化工股份有限公司 | Environment-friendly production process for producing sulfuric acid by using waste sulfuric acid by virtue of sulfur reduction |
| CN117923431A (en) * | 2024-03-14 | 2024-04-26 | 云南化工设计院有限公司 | Method for producing sulfur dioxide by using pyrosulfuric acid and sulfur |
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| Publication number | Publication date |
|---|---|
| CN103569972B (en) | 2015-09-23 |
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Effective date of registration: 20190702 Address after: 115214 North of Weiba Road, Yingkou Xianren Island New Area, Liaoning Province Patentee after: COFCO Sugar Industry Liaoning Co.,Ltd. Address before: 545006 268 East Ring Road, Liuzhou, the Guangxi Zhuang Autonomous Region Patentee before: Guangxi University of Science and Technology |
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Effective date of registration: 20250102 Address after: No. 1 Zhongliang Avenue, Xianren Island Economic Development Zone, Yingkou City, Liaoning Province, 115214 Patentee after: COFCO Sugar Industry Liaoning Co.,Ltd. Country or region after: China Patentee after: COFCO Chongzuo Sugar Co.,Ltd. Address before: 115214 North of Weiba Road, Yingkou Xianren Island New Area, Liaoning Province Patentee before: COFCO Sugar Industry Liaoning Co.,Ltd. Country or region before: China |