SU860831A1 - Method of cleaning waste gases from sulphur anhydride - Google Patents
Method of cleaning waste gases from sulphur anhydride Download PDFInfo
- Publication number
- SU860831A1 SU860831A1 SU752155543A SU2155543A SU860831A1 SU 860831 A1 SU860831 A1 SU 860831A1 SU 752155543 A SU752155543 A SU 752155543A SU 2155543 A SU2155543 A SU 2155543A SU 860831 A1 SU860831 A1 SU 860831A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- chemisorbent
- dry
- waste gases
- cleaning waste
- purification
- Prior art date
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- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Description
1one
Изобретение относитс к способам очистки отход щих газов от сернистого ангидрида в производстве серной кислоты с одновременным получением сульфата кальци .The invention relates to methods for purifying waste gases from sulfuric anhydride in the production of sulfuric acid while at the same time producing calcium sulphate.
Известен способ очистки газов от сернистого ангидрида путем окислени сернистого ангидрида в серный, в слое кип щего катализатора при температуре 350-600°С 1.A known method of purifying gases from sulfuric anhydride by oxidizing sulfurous anhydride to sulfuric, in a bed of boiling catalyst at a temperature of 350-600 ° C 1.
Однако данный способ требует проведени предварительной пылеочистки газов, что усложн ет процесс.However, this method requires pre-cleaning of gases, which complicates the process.
Наиболее близким к изобретению по технической сущности и достигаемому результату вл етс способ очистки газов от сернистого ангидрида, заключающийс в окислении S0,j в 50з на твердом ванадиевом катгшизаторе при высокой температуре (340-41рс) и объемной скорости 1000-8000 последующей обработкой газов при 60250 с вод ным паром и газообразным аммиаком Г2 .The closest to the invention in its technical essence and the achieved result is the method of gas purification from sulfuric anhydride, which consists in oxidizing S0, j in 50z on a solid vanadium catcher at high temperature (340-41pc) and a space velocity of 1000-8000 followed by treatment of gases at 60250 with water vapor and G2 ammonia gas.
Недостатком способа вл етс невысока степень очистки газов, котора составл ет 85%.The disadvantage of this method is the low degree of gas purification, which is 85%.
Цель изобретени - повышение степени очистки.The purpose of the invention is to increase the degree of purification.
Поставленна цель достигаетс предложенным способом, по которому окисление SOrj в SO/j ведут во взвешенном слое твердого катализатора при вдувании в слой катализатора мелкодисперсного сухого хемосорбента с пос ледук дей утилизацией получающегос продукта (CaSO) и очистки газов от пыли.--The goal is achieved by the proposed method, in which the oxidation of SOrj in SO / j is carried out in a suspended layer of a solid catalyst when a finely dispersed dry chemisorbent is blown into the catalyst bed with subsequent disposal of the resulting product (CaSO4) and dust removal from gases .--
10ten
Целесообразно вести окисление при объемной скорости газа 15000-24000 ч и температуре 600-650с, а в качестве хемосорбента использовать окись или карбонат кальци с дисперсностью . It is advisable to carry out the oxidation at a gas flow rate of 15,000-24,000 hours and a temperature of 600-650s, and use calcium oxide or calcium carbonate with dispersity as a chemisorbent.
15 10-400 мкм, вз тый в количестве 2040% стехиометрического избытка по отнсх ению к .15 10-400 µm, taken in the amount of 2040% stoichiometric excess in relation to.
Такое ведение процесса позвол ет получить степень очистки газов от This process allows to obtain the degree of gas purification from
20 SO до 98% без применени предвари- . тельной очистки газов от пыли.20 SO to 98% without the use of prefabricated. dust removal of gases.
Объемна скорость газа 15000 - 24000 за счет более полного использовани внутренней поверхности зерен катализатора позвол ет интенсифицировать процесс окислени $0,2 в SO.J, а температура бОО-бЗО С способствует укрупнению частиц продуктов реакции. Так содб)ржание частиц The volumetric gas velocity of 15,000–24,000 due to more complete utilization of the inner surface of the catalyst grains allows to intensify the oxidation process of $ 0.2 in SO.J, and the temperature of BOO – BZO C contributes to the enlargement of the particles of the reaction products. So sob) neighing particles
30 размером менее 50 мкм в продуктах30 sizes less than 50 microns in products
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU752155543A SU860831A1 (en) | 1975-07-07 | 1975-07-07 | Method of cleaning waste gases from sulphur anhydride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU752155543A SU860831A1 (en) | 1975-07-07 | 1975-07-07 | Method of cleaning waste gases from sulphur anhydride |
Publications (1)
Publication Number | Publication Date |
---|---|
SU860831A1 true SU860831A1 (en) | 1981-09-07 |
Family
ID=20626362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU752155543A SU860831A1 (en) | 1975-07-07 | 1975-07-07 | Method of cleaning waste gases from sulphur anhydride |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU860831A1 (en) |
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1975
- 1975-07-07 SU SU752155543A patent/SU860831A1/en active
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