• 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:
    Natural or industrial gas streams are dehydrated with liquid organic desiccants and the desiccants are treated in a thermal reconcentration zone to remove a major portion of the water contained therein followed by treatment in an isothermal azeotroping zone to remove substantially all the remaining water with low energy requirements.
    公开号:SU786860A3
    申请号:SU762332252
    申请日:1976-02-23
    公开日:1980-12-07
    发明作者:Юджин Фаулер Аллан；Эдвард Протц Джон
    申请人:Дзе Дау Кемикал Компани (Фирма)；
    IPC主号:
    专利说明:

    (54) GAS DRYING METHOD

    The invention relates to gas drying and can be used in the gas and petrochemical industries.
    There is a method of drying the gas with 5 using an organic dehydrator, such as triethylene glycol, followed by regeneration of the saturated dehumidifier by blowing the latter with a pre-dried gas 1
    The disadvantages of this method include significant gas losses during regeneration of the dehumidifier.
     There is also known a method of drying a gas with an organic desiccant, for example, with tri-ethylene glycol, followed by its regeneration by purging with azechatrophorescent agents, which use alkanes, aromatic hydrocarbons, for example benzyl sol, toluene, etc. 2.
    The disadvantage of this method is significant energy consumption during regeneration of the dehumidifier to concentrations that ensure that when it contacts the gas the dew point is minus 45 minus. So, when using toluene as an azeotropic agent to regenerate 1 ton of triethylene glycol to a concentration of 99.95% by weight. thirty
    .3 need to spend about .200-10kkal
    heat
    The aim of the invention is to reduce energy costs.
    The goal is achieved by using isooctane as an azeotropic agent at 540s below the decomposition temperature using a south organic dryer, and contacting is carried out in the azeotropic zone, which is uniformly heated to a temperature of -5-40 ° C below the decomposition temperature of the used desiccant.
    Polyhydric alcohols, such as glycols containing from 2 to 12 carbon atoms, either individually or in mixture with each other, are used as organic dryers, which are liquids under normal conditions, according to this invention. Such drying agents include ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, tetrapropylene glycol and similar butylene glycols.
    Other dryers used according to this invention are
    权利要求:
    Claims (1)
    [1]
    Claim
    A method of drying gas by contacting an organic desiccant, followed by regenerating it by heating and purging with an azeotropic agent, characterized in that, in order to reduce energy consumption, isooctane is used as an azeotropic agent at a temperature of 5-40 ° C below the decomposition temperature of the organic desiccant used, moreover, the contacting is carried out in an azeotropic zone, which is uniformly heated to a temperature of 5-40 ° C below the decomposition temperature of the desiccant used.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU786860A3|1980-12-07|Method of gas drying
    Lisovskii et al.1997|Adsorption of sulfur dioxide by active carbon treated by nitric acid: I. Effect of the treatment on adsorption of SO2 and extractability of the acid formed
    US2992895A|1961-07-18|Process for recovering oxides of nitrogen and sulfur from gaseous mixtures
    US7435338B2|2008-10-14|Removal of mercury compounds from glycol
    KR960040427A|1996-12-17|Recovery method of volatile organics
    US2356890A|1944-08-29|Process for the dehydration of fluids
    US6461413B1|2002-10-08|Method for dehydrating a wet gas using a liquid dessicant, with advanced regeneration of said dessicant
    US4072480A|1978-02-07|Dual impregnated activated carbon for improved removal of malodorous sulfur compounds
    EP0134948A2|1985-03-27|Absorbent formulation for enhanced removal of acid gases from gas mixtures and processes using same
    SU1153812A3|1985-04-30|Method of drying air
    US5643421A|1997-07-01|Dehydration of gases with liquid desiccants
    US3000988A|1961-09-19|Purification of gas
    AU691235B2|1998-05-14|Purification of natural gas
    JP4298264B2|2009-07-15|Methods for drying hydrocarbon streams
    SU682119A3|1979-08-25|Method of removing sulphur dioxide from gases
    US3438892A|1969-04-15|Drying fluids with regenerable sulfonate cation-exchange resins
    US4259304A|1981-03-31|Activation of coal
    US3598521A|1971-08-10|Removal of sulfur compounds from gas streams
    SU1611411A1|1990-12-07|Method of cleaning hydrocarbon gas from acid components
    US2181433A|1939-11-28|Gas purification
    US2762452A|1956-09-11|Removal of organic sulfur compounds from gases
    RU2087181C1|1997-08-20|Method of removing acidic gases such as hydrogen sulfide and/or carbon dioxide
    EP0211659A3|1988-06-08|Gas drying process
    Park et al.1997|New modified poly |‐based adsorbent for heavy metal ions
    SU623570A1|1978-09-15|Gas mixture drying method
    同族专利:
    公开号 | 公开日
    IE42488L|1976-08-24|
    IE42488B1|1980-08-13|
    DE2607259C3|1981-10-01|
    FR2301288B1|1980-08-14|
    DE2607259B2|1980-07-31|
    GB1540127A|1979-02-07|
    NO146080B|1982-04-19|
    NO760603L|1976-08-25|
    BR7601135A|1976-09-14|
    AU498896B2|1979-03-29|
    IN144835B|1978-07-15|
    JPS5717570B2|1982-04-12|
    FR2301288A1|1976-09-17|
    DK146087C|1983-11-21|
    NL7601747A|1976-08-26|
    DK75276A|1976-08-25|
    JPS51109563A|1976-09-28|
    DK146087B|1983-06-27|
    CA1075882A|1980-04-22|
    NO146080C|1982-07-28|
    US4005997A|1977-02-01|
    AU1132376A|1977-09-01|
    DE2607259A1|1976-09-02|
    ES445447A1|1977-06-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3349544A|1966-01-28|1967-10-31|Dow Chemical Co|Gas drying process|
    US3841382A|1973-03-16|1974-10-15|Maloney Crawford Tank|Glycol regenerator using controller gas stripping under vacuum|
    US3867112A|1973-03-26|1975-02-18|Black Sivalls & Bryson Inc|Reconcentrating solute-rich liquid absorbent|
    US3831346A|1973-05-09|1974-08-27|Amoco Prod Co|Method for dehydration of wet gases|
    US3837143A|1973-08-06|1974-09-24|Allied Chem|Simultaneous drying and sweetening of wellhead natural gas|US2878303A|1956-04-04|1959-03-17|Elrob Mfg Co|Antenna mounting structure|
    DE2649967B1|1976-10-30|1978-02-09|Davy Powergas Gmbh|PROCEDURE FOR THE RECONCENTRATION OF A HYDROGEN GLYCOL|
    US4333845A|1978-08-11|1982-06-08|Grow Group, Inc.|Coating composition thinner for decreasing pollution resulting from the application of a coating composition|
    US4339248A|1976-11-08|1982-07-13|Grow Group, Inc.|Process for the purification of gaseous effluent from industrial processes|
    DD207800A3|1982-01-19|1984-03-14|Burkhard Schlicht|METHOD FOR DRYING AND REMOVING HYDROCARBONS FROM BZW. FROM GASEN|
    JPS58171081U|1982-05-12|1983-11-15|
    US4478612A|1983-07-27|1984-10-23|Shell Oil Company|Drying substantially supercritical CO2 with glycerol|
    JPS60234621A|1984-05-07|1985-11-21|Yoshie Terui|Drain receiving stand|
    DK373686A|1985-08-12|1987-02-13|Dow Chemical Co|HOSTING PROCEDURES|
    AT385914B|1985-11-26|1988-06-10|Innofinance Altalanos Innovaci|METHOD AND DEVICE FOR DEHUMIDIFYING GASEOUS MEDIA|
    JPS6331879U|1986-08-20|1988-03-01|
    US5262013A|1991-07-17|1993-11-16|Amalgamated Technologies, Inc.|Coolant recycling method and apparatus|
    US5520723A|1995-02-15|1996-05-28|Jones, Jr.; Robert A.|Method and system for reducing air pollution from natural gas dehydrators|
    US5643421A|1995-03-24|1997-07-01|Opc Engineering, Inc.|Dehydration of gases with liquid desiccants|
    US5766423A|1995-03-24|1998-06-16|Opc Engineering|Dehydration of gases with liquid desiccants|
    US5922109A|1997-03-11|1999-07-13|The Dow Chemical Company|Gas drying process using glycol solution solubility suppressants|
    DE19726210A1|1997-06-20|1998-12-24|Ruhrgas Ag|Drying natural gas|
    US6063163A|1998-06-04|2000-05-16|Amerada Hess Corporation|Co-current and counter-current gas dehydration system|
    CN1191984C|2001-03-29|2005-03-09|三菱电机株式会社|Method for installing hoist|
    EP1310543A1|2001-11-07|2003-05-14|Haldor Topsoe A/S|Process for the drying of a hydrocarbon stream|
    ITMI20042352A1|2004-12-10|2005-03-10|Eni Spa|PROCEDURE FOR THE DISASTER OF A GAS|
    AT458540T|2005-12-29|2010-03-15|Basf Se|METHOD FOR SEPARATING PROPYLENE GLYCOL FROM AQUEOUS COMPOSITIONS|
    US20070209512A1|2006-03-07|2007-09-13|Brian Howard Seibert|Method of regenerating liquid desiccants used in the dehydration or sweetening of gases|
    US20080041228A1|2006-08-18|2008-02-21|Brian Howard Seibert|Method of dehydration of gases with liquid desiccants|
    WO2008022426A1|2006-08-24|2008-02-28|Brian Howard Seibert|Method of dehydration of gases with liquid desiccants|
    US20080283445A1|2007-05-16|2008-11-20|Powers Donald H|Hydrocarbon thermal cracking using atmospheric residuum|
    EP2864453B1|2012-06-22|2016-07-20|Shell Internationale Research Maatschappij B.V.|Method and apparatus for circulating a glycol stream, and method of producing a natural gas product stream|
    EP2801396A1|2013-05-10|2014-11-12|Casale Sa|Use of duplex stainless steel in an ammonia-stripping of urea plants|
    US20210001268A1|2019-07-01|2021-01-07|Saudi Arabian Oil Company|Glycol dehydration and regeneration|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/552,678|US4005997A|1975-02-24|1975-02-24|Gas dehydration with liquid desiccants and regeneration thereof|
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