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公开(公告)号：FI885003A0
公开(公告)日：1988-10-31
申请号：FI885003
申请日：1988-10-31
Applicant: TAMPELLA OY AB
Inventor： KOKKONEN KARI , TUOMINIEMI SEPPO , ALPPI HANNU , KENAKKALA TIMO
Abstract: The invention relates to a process for the removal of sulfur dioxide from hot flue gases (8) which have been obtained by burning a sulfur-containing substance (4) in a boiler (1). In the process, a substance (6), such as lime or limestone, which reacts with sulfur dioxide to form a solid product is fed into the boiler or into the reaction zone (2) subsequent to the boiler, the hot flue gases (8) are cooled in the reaction zone (2) by feeding into it at maximum such an amount of water as the hot flue gases are capable of evaporating, and the substantially dry solid products are separated (3) in the form of dust (10) from the cooled flue gases. According to the invention, the flue gases (11) thus obtained are scrubbed (13) with an alkaline aqueous solution (15) in order to remove the remaining sulfur dioxide and dust from the flue gases, and part (9 min ) of the cycled scrubbing solution (9) is fed into the boiler (1) or the reaction zone (2) in order to evaporate the water from this solution.
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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separately into the reaction zone at several points, and finally from the opposite end a flue gas suspension is withdrawn and directed to dust separation (5).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：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：ZA8508478B
公开(公告)日：1986-07-30
申请号：ZA8508478
申请日：1985-11-05
Applicant: TAMPELLA OY AB
Inventor： HAEMAELAE SIRPA , KENAKKALA TIMO , JANKA PENTTI , RUOHOLA TUOMO , LEHTIMAEKI MARTTI
CPC classification number: B01D53/508 , B01D53/501 , C01F11/464 , C01F11/48
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公开(公告)号：FI851624A0
公开(公告)日：1985-04-24
申请号：FI851624
申请日：1985-04-24
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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Patent Agency Ranking
公开(公告)号：HU210828B
公开(公告)日：1995-08-28
申请号：HU410285
申请日：1985-10-24
Applicant: TAMPELLA OY AB
Inventor： HAEMAELAE SIRPA , KENAKKALA TIMO , JANKA PENTTI , RUOHOLA TUOMO , LEHTIMAEKI MARTTI
IPC: B01D53/14 , B01D53/50 , B01D53/75 , B01D53/81 , C01B17/60 , C01F11/46 , C01F11/48 , B01D53/00 , C01B17/00 , C01B17/22
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：PL163726B1
公开(公告)日：1994-04-29
申请号：PL28434190
申请日：1990-03-16
Applicant: TAMPELLA OY AB
Inventor： AHONEN HEIKKI , KENAKKALA TIMO , KOKKONEN PERTTI
Abstract: A method of producing cement or concrete, comprising the step of adding fly ash to the cement or concrete at the production stage, the fly ash containing lime and reaction products from the reaction occurring between lime and sulphur oxides in connection with the desulphuration of flue gases. To avoid the disadvantageous effects of calcium sulphite and entringite reactions and to increase the used amount of fly ash containing desulphuration waste, the calcium sulphite is oxidized by hydrogen peroxide either before the production of cement or concrete or during the production.
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公开(公告)号：BG60230B2
公开(公告)日：1994-01-18
申请号：BG7229485
申请日：1985-11-06
Applicant: TAMPELLA OY AB
Inventor： HAEMAELAE SIRPA , KENAKKALA TIMO , JANKA PENTTI , RUOHOLA TUOMO , LEHTIMAEKI MARTTI
Abstract: The process and device can be used for removing of gaseous sulphur compounds in particular sulphur dioxide present in the flue gasses, in the form of solid compounds - sulphates and sulphites. The flue gasses (16), containing sulphur dioxide, are fed into one end of an oblong reaction zone (4), into which pulverous calcium compounds and water are separately fed at several points along the reaction zone, and from its opposite end a flue gas and solid compounds suspension is withdrawn, said suspension being directed to dust separation (5). The problems, involved in the preparing handling and spraying of an agueous slurry, are avoided by feeding of the pulverous reagent and the water separately into the reactor (4), the reaction conditions and the retentation time in the oblong reactor (4) can be regulated easily.
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公开(公告)号：GB2229177B
公开(公告)日：1992-12-23
申请号：GB9005536
申请日：1990-03-12
Applicant: TAMPELLA OY AB
Inventor： AHONEN HEIKKI , KENAKKALA TIMO , KOKKONEN PERTTI
Abstract: A method of producing cement or concrete, comprising the step of adding fly ash to the cement or concrete at the production stage, the fly ash containing lime and reaction products from the reaction occurring between lime and sulphur oxides in connection with the desulphuration of flue gases. To avoid the disadvantageous effects of calcium sulphite and entringite reactions and to increase the used amount of fly ash containing desulphuration waste, the calcium sulphite is oxidized by hydrogen peroxide either before the production of cement or concrete or during the production.
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公开(公告)号：CS8803179A2
公开(公告)日：1991-10-15
申请号：CS317988
申请日：1988-05-11
Applicant: TAMPELLA OY AB
Inventor： HAMALA SIRPA , HEIKKILA MATTI , LAINE JOUKO , KOKKONEN KARI , KENAKKALA TIMO
CPC classification number: B01D53/34 , B01D53/504
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