• 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:
    The invention relates to methods for purifying liquid sulfur from hydrogen sulphide and its polysulfides and reduces the duration of the process. In accordance with the invention, a catalyst comprising one or two compounds from the series containing quinoline, isoquinoline, phenazine, acridine, benzacridine, quinoxalic, quinazoline, ben - zoquinoline, phenanthridine, phenanthroline, naphthyridine and dipyridyl. The catalyst is introduced in the amount of 5-120 wt. at 1 million hours of sulfur. The content of sulfates in purified sulfur is less than 2, with a process time of 32 to 200 minutes. 2 hp f-ly, 1 ill., 1 tab. (L
    公开号:SU1634131A3
    申请号:SU884355399
    申请日:1988-03-09
    公开日:1991-03-07
    发明作者:Вуарен Ребер；Пепи Андре
    申请人:Сосьете Насьональ Елф Акитэн (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to methods for the removal of hydrogen sulfide from sulfur in the dissolved state and in the form of polysulfide, the so-called sulfanes of the formula, where,.
    The total amount of H2S in the liquid sulfur obtained by the Claus method is usually 50-700 ppm and depends mainly on the concentration of HgS in the gas phase above the liquid sulfur and the temperature of the latter.
    The removal method contained in liquid sulfur in the free and bound state includes two stages: the stage of decomposition of the heaviest sulfanes to H S and sulfur according to the equation A23 y - + SX-H and the stage of extraction and / or conversion in situ to sulfur released and dissolved by HS and light sulfanes. The decomposition of sulfanes to and S is slow, and therefore the removal rate is limited by the speed of this reaction.
    The purpose of the invention is to reduce the duration of the process.
    The drawing shows a closed insulated chamber.
    In accordance with the invention, a catalyst comprising an unsubstituted heterocyclic compound containing one or two nitrogen atoms with a boiling point above 200 ° C is introduced into liquid sulfur with a temperature of 135–65 ° C. A compound selected from the series containing quinoline, isoquinoline, phenazine, acridine, benzacridine, quinoxaline, quinazoline,
    O5 OO Ј
    WITH
     ABOUT
    benzoquinoline, phenanthridine, phenanthroline, naphthyridine, and dipyridyl.
    The catalyst is introduced in the amount of 5-120 mas per hour, 1 million hours. sulfur at one time or in several receptions.
    The method should be carried out under conditions that ensure uniform distribution of the catalyst and removal of the precipitated.
    Example. The proposed method is carried out in a closed heat-insulated chamber 1, divided into a first compartment 2 of small volume and a second compartment 3 of large volume. The compartments are separated by a partition 4, open at the top, to form an overflow, allowing liquid sulfur to flow out from the first compartment to the second. The bottom 5 of the first compartment is located above the bottom 6 of the second compartment. The chamber is provided with a purge gas supply 7 entering the first compartment above the overflow level and a purge gas outlet 8 installed in the upper part of the second compartment. In addition, the first compartment on one side is provided with a pipe 9 for supplying liquid sulfur, equipped with a branch pipe 10 for introducing the catalyst. On the other hand, the first compartment is equipped with a mixing means 11, and in the second compartment, a pulverization system 12 is installed, an inlet pump 13, the suction pipe 14 of which is immersed in liquid sulfur, and the discharge pipe 15 of which is connected to a nozzle 16 located in the second compartment above the free surface 17 of the liquid sulfur contained in this compartment. In this implementation, the liquid sulfur containing catalyst is subjected to vigorous stirring in the first compartment 2, which leads to a decrease in the number distribution of the catalyst in the liquid sulfur and to the initiation of the decomposition reaction of sulfanes. The sulfur is then poured over the overflow 4 into the second compartment 3, in which it is subjected to
    five
    0
    five
    0
    five
    0
    five
    0
    The pulverization released from the liquid sulfur contained in both compartments is removed due to the v circulation of the purge gas and, together with this gas, is sent to the combustion zone.
    The method can also be carried out in a chamber divided into 3 compartments.
    The table shows the specific conditions of the process with different catalysts and the results obtained.
    As follows from the presented table, the proposed method allows reducing the content of total H5 in liquid sulfur below 10 ppm with a significantly shorter process time - 32–200 min versus 300 min by a known method.
    权利要求:
    Claims (3)
    [1]
    1. A method for purifying liquid sulfur from hydrogen sulphide and its polysulfides in the presence of a catalyst — a nitrogenous compound of the main character at 135-165 ° C and mixing with blowing the free surface of sulfur with gas inert to this system, characterized in that
    in order to reduce the duration of the process, an unsubstituted heterocyclic compound containing one or two nitrogen atoms with a boiling point at atmospheric pressure above 200 ° C is used as a catalyst.
    [2]
    2. A method according to claim 1, differing in the liquefaction and the fact that one or two compounds from the series containing quinoline, isoquinoline, phenazine, acridine, benzacridine, quinoxalin, quinazoline, benzoquinoline, phenanthridine , phenanthroline, naphthyridine and dipyridyl.
    [3]
    3. The method according to claim 1, about tl and h a root, and so that the catalyst is introduced in an amount of 5-120 wt.h. on
    1 million hours of sulfur.
    16341318
    - Table continuation
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    Xj
    sh
    /five / / /
    9
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    BUT
    -
    .//
    J / 7
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1634131A3|1991-03-07|Method of purification of liquid sulfur from hydrogen sulfide and its polysulfides
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    CA1250409A|1989-02-28|Process and apparatus for degassing sulfur
    KR100287744B1|2001-04-16|Continuous method for the simultaneous collection and precipitation of mercury in a mercury-containing gas
    US5004591A|1991-04-02|Catalytic process for removal of hydrogen sulfides from liquid sulfur
    US3761569A|1973-09-25|Method of removing hydrogen sulfide from gases
    RU2110469C1|1998-05-10|Method of producing sulfur and hydrogen from hydrogen sulfide
    US2784055A|1957-03-05|Process for the treatment of gases rich in hydrogen sulphide
    FR2387904A1|1978-11-17|PROCESS FOR TREATING A GAS CONTAINING HYDROGEN SULPHIDE
    US2042050A|1936-05-26|Process for purifying hydrocarbon oils
    US3334469A|1967-08-08|Process for removing hydrogen sulfide from natural gas
    FI75329B|1988-02-29|FOERFARANDE FOER AVLAEGSNANDE AV SVAVELINNEHAOLLET I EN UTTUNNAD SVAVELDIOXIDHALTIG GAS.
    US4479929A|1984-10-30|Production of sulfur from a H2 S-bearing gas stream
    US2193278A|1940-03-12|Purification of combustible gases
    US2002365A|1935-05-21|Process for removing hydrogen sulphide from gases containing ammonia and hydrogen sulphide
    US1979934A|1934-11-06|Process for the removal of ammonia and hydrogen sulphide from gases
    US4162903A|1979-07-31|Physical solvent absorption of carbon dioxide and hydrogen sulphide for the deacidification of industrial gaseous mixtures
    JPS58289A|1983-01-05|Removing method for hydrogen sulfide and hydrogen cyanide from gas liquor
    SU1719511A1|1992-03-15|Method of recovering hydrogen sulfide from cellulose processing green liquor
    GB2031864A|1980-04-30|Removing hydrogen sulphide from liquid sulphur
    RU2065319C1|1996-08-20|Method of pyrogas scrubbing from carbon dioxide and hydrogen sulfide
    SU704652A1|1979-12-25|Reaction vessel
    SU941280A1|1982-07-07|Process for purifying gas from hydrogen sulphide and sulphurous anhydride
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    同族专利:
    公开号 | 公开日
    GR3001449T3|1992-09-25|
    AU7696587A|1988-02-10|
    WO1988000571A1|1988-01-28|
    AU602711B2|1990-10-25|
    FI84338C|1991-11-25|
    ES2019394B3|1991-06-16|
    FI881115A|1988-03-09|
    FR2601350B1|1988-09-30|
    DK126588A|1988-03-09|
    FI84338B|1991-08-15|
    US4849204A|1989-07-18|
    DE3766024D1|1990-12-13|
    US5030438A|1991-07-09|
    CA1324481C|1993-11-23|
    FR2601350A1|1988-01-15|
    EP0252836B1|1990-11-07|
    DK126588D0|1988-03-09|
    EP0252836A1|1988-01-13|
    JPH01500588A|1989-03-01|
    JP2510421B2|1996-06-26|
    DK168283B1|1994-03-07|
    FI881115A0|1988-03-09|
    AT58111T|1990-11-15|
    MX168374B|1993-05-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1497649A|1922-05-05|1924-06-10|Union Sulphur Company|Manufacture of sulphur|
    US1556037A|1923-08-18|1925-10-06|Texas Gulf Sulphur Co|Free-burning sulphur|
    US2482574A|1949-01-22|1949-09-20|Little Inc A|Reduction of viscosity of molten sulfur by means of resin acids|
    NL129706C|1963-08-13|
    US3447903A|1966-10-27|1969-06-03|Freeport Sulphur Co|Sulphur production|
    NL173735C|1972-05-24|1988-06-16|Shell Int Research|METHOD FOR REMOVING HYDROGEN SULFIDE FROM MOLED SULFUR.|
    US3978137A|1975-03-14|1976-08-31|Universal Oil Products Company|Oxidation of sulfur-containing compounds|
    US4308171A|1977-05-16|1981-12-29|Exxon Research & Engineering Co.|Method of preparing di and poly chalcogenides of group VIIb by low temperature precipitation from nonaqueous solution and small crystallite size stoichiometric layered dichalcogenides of rhenium and technetium|
    US4243648A|1979-06-20|1981-01-06|Union Oil Company Of California|Method for removing hydrogen sulfide from gas streams|
    US4299811A|1980-08-01|1981-11-10|Exxon Research & Engineering Co.|Degassing molten sulfur|
    DE3417230A1|1984-05-10|1985-11-14|Metallgesellschaft Ag, 6000 Frankfurt|METHOD AND DEVICE FOR DE-GASIFYING LIQUID SULFUR WITH HYDROGEN|AT214350T|1993-09-01|2002-03-15|Apollo Environmental Syst Corp|Degassing of liquid sulfur|
    US5632967A|1995-09-19|1997-05-27|Goar, Allison & Associates, Inc.|Process for the high pressure degassing of hydrogen sulfide from liquid sulfur|
    US5686056A|1996-02-05|1997-11-11|Bechtel Group, Inc.|Methods and apparatus for purifying hydrogen sulfide|
    AU1022797A|1996-02-14|1997-09-02|Marathon Oil Company|Process for removing sulfur as a liquid during gas treating|
    US5686057A|1996-11-13|1997-11-11|Betzdearborn Inc.|Selective oxidation of hydrogen sulfide in molten sulfur|
    AT405721B|1997-11-07|1999-11-25|Oemv Ag|DEVICE FOR SEPARATING GAS FROM LIQUIDS AND USE OF THE DEVICE FOR SEPARATING SULFUR HYDROGEN FROM LIQUID SULFUR|
    US6656445B2|2000-10-13|2003-12-02|Baker Hughes Incorporated|Hydrogen sulfide abatement in molten sulfur|
    DE10245164B4|2002-09-26|2014-11-13|Evonik Degussa Gmbh|Process for the conversion of polysulfanes|
    US7081233B2|2004-05-18|2006-07-25|Dynamax Engineering Ltd.|Method and apparatus for degassing liquid sulfur|
    US7927577B2|2009-01-12|2011-04-19|Worleyparsons Group, Inc.|Sulfur collection systems and processes with integrated degassing|
    EP2607304B1|2011-12-23|2015-03-25|Air Liquide Global E&C Solutions Germany GmbH|Method and device for removing gas from liquid sulphur|
    US9617154B1|2015-09-30|2017-04-11|Mahin Rameshni|Superdegas—a process of integrating sulfur collection and degassing for zero emission|
    CN111983134A|2019-05-24|2020-11-24|中国石油天然气股份有限公司|Method for measuring contents of hydrogen sulfide and hydrogen polysulfide in liquid sulfur|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8610062A|FR2601350B1|1986-07-10|1986-07-10|PROCESS FOR THE RAPID REMOVAL OF SULFURATED HYDROGEN CONTAINED IN LIQUID SULFUR AND CATALYST SYSTEM FOR USE IN ITS IMPLEMENTATION|
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