• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Gases containing tar and other condensable components are cleaned by cooling them in a circulating fluidized bed reactor (2) provided with cooling surfaces (8). Into the fluidized bed reactor are led solids separated from the cooled gas in a cyclone separator (3) and other solids. Tar and other compounds condense on the solids in a mixing chamber (9) disposed before the cooling surface in the reactor.
    公开号:SU1639434A3
    申请号:SU874202091
    申请日:1987-03-09
    公开日:1991-03-30
    发明作者:Руотту Серпо
    申请人:А.Альстрем Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a method for the chemical purification of gases containing dust and tar, formed during the partial oxidation of biomass of peat or coal, or other gases containing a condenser with a number of components, in which the gas is cooled in a fluidized bed (fluidized bed) reactor.
    The aim of the invention is to improve the quality of gas cleaning.
    The drawing shows a circulation reactor, a longitudinal section.
    The reactor contains a mixing chamber 1 with an inlet nozzle 2 located in the lower part of the reactor 3, in the upper part of which a cyclone separator 4 is placed with a drain pipe 5. A drain pipe 6 is connected to the drain pipe 5 for supplying new particles, for example sand, particles separated from gases. In the upper part of the separator is placed a pipe 8 of the outlet of purified gas. Cooling surfaces 9 are placed in the reactor,
    The gas cleaning method is carried out in the reactor as follows.
    The cooled gas containing the resin is fed through the inlet 2 to the mixing chamber 1 located in the lower part of the reactor 3 with a circulating bed. Gases, where the exit from the upper part of the reactor, is introduced into the cyclone separator 4, from which some solid particles separated from the gases are recycled to the lower NOE
    with so
    4 SO Јb
     PTS
    The kyuyu part of the reactor through the pipe 5. In addition, new particles, such as sand, are fed into the lower part of the reactor through pipe 6. If the gas to be purified contains sulfur compounds, it is advisable to choose solid particles that will bind sulfur in the form of sulfide.
    A portion of the solid particles separated from the gases is discharged through the treatment tube 7. The particulate gas is discharged through a central tube 8 in a separator.
    In a fluidized bed reactor, gases with solid particles are cooled by means of cooling surfaces 9 to a temperature at which most of the resin compounds condense on solid particles already present in the mixing chamber 1.
    The amount of solid particles flowing through the fluidized bed of the reactor is controlled by changing the flow of solid particles fed through pipe 6 and discharged through pipe 7 by means of rotating feeders 10 and I. There are no valves or other blocking means in return pipe 5. Air nozzles can be installed in the pipe, so that the return flow can be regulated. The temperature and residence time in the reactor are selected from the conditions for maximum purification.
    With the help of additives, i.e. solids introduced through pipe 5, changes in grain size and quality of additives (for example, particle density) can improve process controllability and also affect heat transfer to cooling surfaces.
    / 1l ensure long life
    j

    five
    0
    The density of the solid particles in the reactor slurry is preferably between 2 and 20 kg / m 3.
    权利要求:
    Claims (4)
    [1]
    1. A method for purifying gases containing condensable components in a circulating fluidized bed reactor equipped with cooling surfaces in the upper part, by introducing gas into the mixing zone in the lower part of the reactor and removing it through the cooling surfaces in the upper part, separating the solid particles from the cooled gas, recycling a controlled flow of solid particles into the lower part of the reactor and subsequent mixing with the gas introduced into the lower part of the reactor, characterized in that, in order to improve the quality and gas in the mixing zone is introduced an additional stream of solid particles and the gas temperature is adjusted to the condensation temperature of condensable components.
    [2]
    2. A method according to claim 1, characterized in that the gas flow rate in the mixing zone is maintained at a maximum of half the gas flow rate in the upper part of the reactor in the cooling surfaces.
    [3]
    3. The method according to claim 1, distinguishing rout and so that sand is used as an additional stream of solid particles.
    [4]
    4. A circulating reactor for cleaning gases containing condensable components, including a mixing chamber in the lower part of the reactor, cooling surfaces located in the cooling zone in the upper part of the reactor, a cyclone separator for
    50
    in a mixing chamber and a large 45 dividing solid particles from the gas exiting the reactor, a return pipe for directing solid particles separated from the gas back into the mixing chamber of the reactor and a pipe for introducing additional solid particles into the mixing chamber, characterized in that In order to improve the quality of gas cleaning, the cross sectional area of the mixing chamber is at least twice the cross sectional area of the reactor cooling zone.
    contact surfaces between circulating and cooled solids, the flow area in the mixing chamber is at least double the size of the reactor cooling zone, where the cooling surfaces 9 are located.
    The flow rate of the gas in the cooling zone is preferably 2-10 m / s, the gas flow velocity in the mixing zone is maintained equal to the maximum baby half of this value.
    -.55
    45th
    - .55
    vL.V
    9 J
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1639434A3|1991-03-30|Method and circulation reactor for cleaning of gases containing condensing components
    FI93274B|1994-11-30|Method and apparatus for treating or utilizing a hot gas stream
    CA1057584A|1979-07-03|Process for burning carbonaceous material
    US3703442A|1972-11-21|Method for the low-temperature distillation of finely granular bituminous materials which form a pulverulent residue in the process
    US4562054A|1985-12-31|Treatment of flue gas
    IE52546B1|1987-12-09|Process of simultaneously producing fuel gas and process heat from carbonaceous materials
    US4613344A|1986-09-23|Method and apparatus for cleaning hot gases produced during a coal gasification process
    US4539024A|1985-09-03|Scrubber for the desulfurization of flue gases
    US5634516A|1997-06-03|Method and apparatus for treating or utilizing a hot gas flow
    PL111990B1|1980-09-30|Method of hot gas cleaning
    AU596064B2|1990-04-12|Method for improving solids distribution in a circulating fluidized bed system
    US4412848A|1983-11-01|Heat recovery method from gasified products of hydrocarbon
    SE459584B|1989-07-17|PROCEDURES FOR PROCESSING OF RAAGAS MANUFACTURED FROM COAL CONTENTS
    US3951615A|1976-04-20|Cylindrical pressure reactor for producing a combustible gas
    RU2095121C1|1997-11-10|Method for treatment of hot gases and device for its embodiment
    US3970740A|1976-07-20|Wet gas scrubbing process
    US4556479A|1985-12-03|Method for the clean-up of particulate-catalyst containing gases
    US5480624A|1996-01-02|Method for purification of waste gases
    US5567228A|1996-10-22|System for cooling and cleaning synthesized gas using ahot gravel bed
    EP0515474B1|1994-08-31|method and apparatus for the purification of waste gases
    EP0177527B1|1989-06-21|Two- or multi-component reactor
    AU620129B2|1992-02-13|Process and device for the purification of raw gas from solids gasification reactors
    CA1265660A|1990-02-13|Circulating fluidized bed reactor and a method ofseparating solid material from the flue gases
    GB2102831A|1983-02-09|Fluidized bed gasification of coal
    CA1214985A|1986-12-09|Process for the separation of dry fly ash from a gas
    同族专利:
    公开号 | 公开日
    EP0228373B1|1989-08-16|
    FI843606L|1986-03-15|
    WO1986001822A1|1986-03-27|
    FI76707C|1988-12-12|
    BR8507243A|1987-10-27|
    FI76707B|1988-08-31|
    PT81123A|1985-10-01|
    FI843606A0|1984-09-14|
    PT81123B|1987-10-20|
    ES546827A0|1986-07-16|
    EP0228373A1|1987-07-15|
    US5019137A|1991-05-28|
    DE3572365D1|1989-09-21|
    CA1265067A|1990-01-30|
    ES8608568A1|1986-07-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2580740C2|2011-12-29|2016-04-10|Ухань Кайди Инджиниринг Текнолоджи Рисерч Инститьют Ко., Лтд.|Method for cleaning synthesis gas from biomass at negative pressure to obtain oil products and configuration system thereof|US2583013A|1945-10-26|1952-01-22|Standard Oil Dev Co|Condensation of sublimable material|
    US3443360A|1967-10-12|1969-05-13|Du Pont|Fluid bed cooler for gas separation|
    BE759736A|1969-12-02|1971-06-02|Exxon Research Engineering Co|PURIFICATION OF FUELS;|
    DE2056096B2|1970-11-14|1978-09-28|Metallgesellschaft Ag, 6000 Frankfurt|Process for the separation of hydrogen fluoride from gases|
    US4135893A|1974-07-08|1979-01-23|Cogas Development Company|Mixing method and device|
    US4078041A|1976-03-01|1978-03-07|Rexnord Inc.|Electrofluidized bed gas purification arrangement and method|
    US4120668A|1976-06-21|1978-10-17|Pullman Incorporated|Method for removing entrained melt from a gaseous stream|
    US4198212A|1977-05-24|1980-04-15|The Lummus Company|Coal gasification effluent treatment|
    DE2910830B1|1979-02-16|1980-07-24|Alusuisse|Device for extracting solid aluminum chloride|
    DE3102819C2|1980-01-29|1991-01-31|Babcock-Hitachi K.K., Tokio/Tokyo, Jp|
    US4303127A|1980-02-11|1981-12-01|Gulf Research & Development Company|Multistage clean-up of product gas from underground coal gasification|
    US4372937A|1980-04-18|1983-02-08|Phillips Petroleum Company|Waste heat recovery|
    DE3023480A1|1980-06-24|1982-01-14|Metallgesellschaft Ag, 6000 Frankfurt|METHOD FOR HOT DESULFURING FUEL OR REDUCING GASES|
    JPS6158115B2|1981-04-28|1986-12-10|Kogyo Gijutsuin|
    FI64997C|1981-11-23|1986-01-08|Ahlstroem Oy|FOERFARANDE FOER TILLVARATAGANDE AV VAERME UR GASER INNEHAOLLANDE VAERMEYTOR NEDSMUTSANDE AEMNEN|
    US4474584A|1983-06-02|1984-10-02|Texaco Development Corporation|Method of cooling and deashing|FI82612C|1987-05-08|1991-04-10|Ahlstroem Oy|Process and apparatus for treating process gases|
    DE3724947A1|1987-07-28|1989-02-16|Uhde Gmbh|METHOD AND DEVICE FOR COOLING RAW GAS FROM A PARTIAL OXIDATION OF CARBONATED MATERIAL|
    US5213587A|1987-10-02|1993-05-25|Studsvik Ab|Refining of raw gas|
    US5330562A|1993-03-12|1994-07-19|Medx, Inc.|Fluidized bed scrubber for use in gas cleaning system|
    FI96321C|1993-06-11|1996-06-10|Enviropower Oy|Method and reactor for treating process gas|
    US5464597A|1994-02-18|1995-11-07|Foster Wheeler Energy Corporation|Method for cleaning and cooling synthesized gas|
    US5503811A|1994-09-19|1996-04-02|Ahluwalia; R. K.|Method for removing metal vapor from gas streams|
    US5567228A|1995-07-03|1996-10-22|Foster Wheeler Energy Corporation|System for cooling and cleaning synthesized gas using ahot gravel bed|
    FI112665B|1999-05-14|2003-12-31|Fortum Oil & Gas Oy|Process and plant for gasification of carbonaceous material|
    NL1030189C2|2005-10-13|2007-04-16|Stichting Energie|Biogas purification apparatus, contains bed comprising carbon particles and base particles of a material other than carbon|
    JP5265277B2|2008-09-08|2013-08-14|本田技研工業株式会社|Desulfurization equipment|
    CN102728181B|2012-07-23|2014-05-07|东南大学|Fluidized bed jetting adsorbent smoke demercuration device and method thereof|
    SG11201408560XA|2012-08-27|2015-01-29|Southern Co|Multi-stage circulating fluidized bed syngas cooling|
    CN105148631B|2015-10-14|2017-05-24|成都市智联环境保护设备有限公司|Dust remover provided with heating jacket|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI843606A|FI76707C|1984-09-14|1984-09-14|Process for the purification of gases containing condensable components|
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