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公开(公告)号：SE461957B
公开(公告)日：1990-04-23
申请号：SE8505269
申请日：1985-11-07
Applicant: TAMPELLA OY AB
Inventor： HAEMAELAE SIRPA
Abstract: The invention concerns a method for removing sulphur dioxide from flue gases from boilers. In contrast to previously known methods, the boiler 1 is fed not only with the sulphur-containing substance 4 which is to be burned, and the oxygen-containing gas 5, but also with powdered calcium or magnesium oxide or carbonate 6 in an excess amount in relation to the sulphur dioxide gas which is generated in the combustion area, and the flue gases 8 thus obtained and containing calcium or magnesium oxide are sprayed separately with water 9 in a phase separate from the combustion. Alternatively, powdered oxide 6' can be fed directly to the flue gases coming from the boiler 1.
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公开(公告)号：FI78846B
公开(公告)日：1989-06-30
申请号：FI851623
申请日：1985-04-24
Applicant: TAMPELLA OY AB
Inventor： HAEMAELAE SIRPA
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公开(公告)号：AU575209B2
公开(公告)日：1988-07-21
申请号：AU4907885
申请日：1985-10-25
Applicant: TAMPELLA OY AB
Inventor： HAEMAELAE SIRPA , KENAKKALA TIMO , JANKA PENTTI , RUOHOLA TUOMO , LEHTIMAEKI MARTTI
Abstract: The invention relates to a process and apparatus for causing the sulfur dioxide of flue gases to react to form solid sulfates and sulfites which can be separated from the flue gases. Sulfur dioxide containing flue gases (16) are directed according to the invention into one end of an oblong reaction zone (4), in addition to which pulverous calcium compounds and water are directed separately into the reaction zone at several points, and finally from the opposite end a flue gas suspension is withdrawn and directed to dust separation (5). By feeding the pulverous reagent and the water separately into the reactor 4, the problems involved in the preparing, handling and spraying of an aqueous slurry are avoided, in addition to which the retention time and the reaction conditions can be regulated easily in the oblong reactor 4.
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公开(公告)号：YU173085A
公开(公告)日：1987-10-31
申请号：YU173085
申请日：1985-11-06
Applicant: TAMPELLA OY AB
Inventor： HAEMAELAE SIRPA
IPC: B01D53/00 , B01D53/14 , B01D53/34 , B01D53/50 , B01D53/75 , B01D53/81 , C01B17/00 , C01B17/22 , C01B17/60 , C01F5/40 , C01F11/46 , F23J15/00
Abstract: Method for sepg. gaseous sulphur cpds such as SO2 from furnace exhaust gases, comprises: (a) introducing a powdered alkali metal oxide and/or an alkaline with metal oxide and or a precursor thereof into the furnace as well as the S-contg material, and a gas contg. oxygen, or a solid which releases oxygen on heating is mixed with the gas contg. S leaving the furnace. (b) water or steam is sprayed separately into the furnace and or the exhaust gas to convert the oxide to hydroxide and thus reacts with the SO2; and (c) a solid is sepd. contg. alkali (ne)earth metal sulphate and/or sulphite.
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Patent Agency Ranking
公开(公告)号：FR2580949A1
公开(公告)日：1986-10-31
申请号：FR8516280
申请日：1985-11-04
Applicant: TAMPELLA OY AB
Inventor： HAEMAELAE SIRPA
IPC: B01D53/00 , B01D53/14 , B01D53/34 , B01D53/50 , B01D53/75 , B01D53/81 , C01B17/00 , C01B17/22 , C01B17/60 , C01F5/40 , C01F11/46 , F23J15/00 , C01B17/48
Abstract: Method for sepg. gaseous sulphur cpds such as SO2 from furnace exhaust gases, comprises: (a) introducing a powdered alkali metal oxide and/or an alkaline with metal oxide and or a precursor thereof into the furnace as well as the S-contg material, and a gas contg. oxygen, or a solid which releases oxygen on heating is mixed with the gas contg. S leaving the furnace. (b) water or steam is sprayed separately into the furnace and or the exhaust gas to convert the oxide to hydroxide and thus reacts with the SO2; and (c) a solid is sepd. contg. alkali (ne)earth metal sulphate and/or sulphite.
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公开(公告)号：GB2174081A
公开(公告)日：1986-10-29
申请号：GB8527453
申请日：1985-11-07
Applicant: TAMPELLA OY AB
Inventor： HAEMAELAE SIRPA , KENAKKALA TIMO , JANKA PENTTI , RUOHOLA TUOMO , LEHTIMAEKI MARTTI
Abstract: The invention relates to a process and apparatus for causing the sulfur dioxide of flue gases to react to form solid sulfates and sulfites which can be separated from the flue gases. Sulfur dioxide containing flue gases (16) are directed according to the invention into one end of an oblong reaction zone (4), in addition to which pulverous calcium compounds and water are directed separately into the reaction zone at several points, and finally from the opposite end a flue gas suspension is withdrawn and directed to dust separation (5). By feeding the pulverous reagent and the water separately into the reactor 4, the problems involved in the preparing, handling and spraying of an aqueous slurry are avoided, in addition to which the retention time and the reaction conditions can be regulated easily in the oblong reactor 4.
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公开(公告)号：DK515485A
公开(公告)日：1986-10-25
申请号：DK515485
申请日：1985-11-08
Applicant: TAMPELLA OY AB
Inventor： HAEMAELAE SIRPA
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90.发明专利
公开(公告)号：ZA858475B
公开(公告)日：1986-07-30
申请号：ZA858475
申请日：1985-11-05
Applicant: TAMPELLA OY AB
Inventor： HAEMAELAE SIRPA
IPC: B01D53/00 , B01D53/14 , B01D53/34 , B01D53/50 , B01D53/75 , B01D53/81 , C01B17/00 , C01B17/22 , C01B17/60 , C01F5/40 , C01F11/46 , F23J15/00 , B01D
Abstract: Method for sepg. gaseous sulphur cpds such as SO2 from furnace exhaust gases, comprises: (a) introducing a powdered alkali metal oxide and/or an alkaline with metal oxide and or a precursor thereof into the furnace as well as the S-contg material, and a gas contg. oxygen, or a solid which releases oxygen on heating is mixed with the gas contg. S leaving the furnace. (b) water or steam is sprayed separately into the furnace and or the exhaust gas to convert the oxide to hydroxide and thus reacts with the SO2; and (c) a solid is sepd. contg. alkali (ne)earth metal sulphate and/or sulphite.
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