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    32.
    发明专利
    未知

    公开(公告)号：ES548286A0

    公开(公告)日：1986-10-01

    申请号：ES548286

    申请日：1985-10-28

    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 ,  C10K1/34

    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.

    35.
    发明专利
    未知

    公开(公告)号：DK515585D0

    公开(公告)日：1985-11-08

    申请号：DK515585

    申请日：1985-11-08

    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 ,  B01D ,  C01B

    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separately into the reaction zone at several points, and finally from the opposite end a flue gas suspension is withdrawn and directed to dust separation (5).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.

    PROCESS FOR CAUSING GASEOUS TRACE ELEMENT PARTICLES TO PASS FROM A FLOWING HOT GAS INTO A DUST BY MEANS OF WATER
    38.
    发明专利
    PROCESS FOR CAUSING GASEOUS TRACE ELEMENT PARTICLES TO PASS FROM A FLOWING HOT GAS INTO A DUST BY MEANS OF WATER 未知

    公开(公告)号：CA1298693C

    公开(公告)日：1992-04-14

    申请号：CA566357

    申请日：1988-05-10

    Applicant: TAMPELLA OY AB

    Inventor： HAEMAELAE SIRPA ,  HEIKKILAE MATTI ,  LAINE JOUKO ,  KOKKONEN KARI ,  KENAKKALA TIMO

    IPC: B01D53/34 ,  B01D53/50 ,  B01D47/05 ,  B01D53/00 ,  B01D53/26

    Abstract: (57) The present invention relates to a process for causing gaseous trace element particles to pass from a flowing hot gas into a dust by means of water. According to the invention, a mixture of the hot gas and water drops is caused to flow substantially upwards at such a velocity that the water drops remain in the gas flow and for a period long enough for most of the mass of the water drops to evaporate in order to cool the gas and to increase its relative humidity. After the gases have reached their wet temperature they are brought into a turbulent state in order to cause the dust particles and the water drops which have decreased through evaporation to impinge against each other in order to produce in the aqueous film which covers the dust particles an exothermal ion reaction between the gaseous water-soluble trace element particles and the dust particles. Thereafter the mixture is caused to flow further in order to evaporate the remaining water by means of the heat of reaction so that a dry end product is obtained.

    PROCESS FOR REMOVING GASEOUS SULFUR COMPOUNDS AND SULFUR DIOXIDE FROM THE FLUE GASES OF A FURNACE
    39.
    发明专利
    PROCESS FOR REMOVING GASEOUS SULFUR COMPOUNDS AND SULFUR DIOXIDE FROM THE FLUE GASES OF A FURNACE 未知

    公开(公告)号：CA1289336C

    公开(公告)日：1991-09-24

    申请号：CA494920

    申请日：1985-11-08

    Applicant: TAMPELLA OY AB

    Inventor： HAEMAELAE SIRPA

    IPC: B01D53/14 ,  B01D53/50 ,  B01D53/81 ,  F23J15/00 ,  B01D53/34

    Abstract: The invention relates to a process for removing sulfur dioxide from the flue gases of a furnace. In a manner deviating from prior known methods, in addition to a sulfur-containing material (4) to be burned and an oxygen-bearing gas (5), a pulverous calcium or magnesium hydroxide (6) is fed, in excess proportion to the sulfur dioxide gas produced in the combustion chamber, into the combustion chamber of the furnace (1), and water (9) or steam is sprayed separately into the thus obtained calcium oxide bearing or magnesium oxide bearing flue gases (8) in a stage (2) separate from the combustion chamber. Alternatively and preferably the pulverous hydroxide (6) can be fed directly into the flue gases which leave the furnace (1), either in the flue gas conduit (7) or in a reactor (2) subsequent to it, where the hydroxide is activated by means of water (9) or steam.

    METHOD FOR REMOVING SULFUROUS ANHYDRIDE FROM FLUE GASES
    40.
    发明专利
    METHOD FOR REMOVING SULFUROUS ANHYDRIDE FROM FLUE GASES 未知

    公开(公告)号：SU1679969A3

    公开(公告)日：1991-09-23

    申请号：SU3974783

    申请日：1985-11-06

    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

    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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