• 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:
    For the removal of sulfur compounds, especially H2S, from gaseous mixtures, said mixtures are scrubbed with a physical solvent which is later regenerated and reused. To the solvent are added (a) an oxidizing agent for converting the sulfur compounds into elemental sulfur, and (b) additive means for increasing the settling rate of the thus-formed sulfur.
    公开号:SU1473698A3
    申请号:SU853903996
    申请日:1985-06-07
    公开日:1989-04-15
    发明作者:Баур Карл；Хейссингер Петер；Фрусторфер Лудвиг；Нейберт Ганс-Юрген；Беккер Ганс；Хейзель Михаэль
    申请人:Линде Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to methods for treating the purification of gases with organic absorbers and may find application in the gas industry.
    The purpose of the invention is to increase the purity of the sulfur obtained and increase its yield in crystalline form.
    Example 1. 100 mol of a gas mixture with a temperature of 40 ° C and a pressure of 80 bar, having a composition, mol%: CH4 81.8, C2 8.4; C3 3.1; C4 1.1; Su 0.5; C6 0.1; C7 0.1; C8 0.02; C ,, 0.01; N2 0.6; HZS 4.0 and H20 0.27 are subjected to countercurrent washing with polyethylene with glycolic ethershir, supplied in an amount of 1.3) TV. 88.72 moles of the purified gas of the composition, mol.%: CH4 89.80; Ca 8.77; C, 0.63; C4 0.09;
    Su 0.01; N2 0.68; 23 ppm, 1 ppm of SO2 and traces of C6-C, as well as a solvent loaded with sulfur compounds, to which sulfur dioxide is added in an amount corresponding to a stoichiometric ratio for the conversion of sulfur compounds, and 1 g of ammonium rhodanide per 1 l solvent. After 120 minutes, 0.54 mol of sulfur in a crystalline form containing 20 ppm of hydrocarbons and nitrogen, 10 ppm of hydrogen sulfide and 100 ppm of water are separated from the solvent. After regeneration by distillation, the solvent is returned to washing.
    PRI mme r.2. Example 1 is repeated, but ammonium rhodanide is added in an amount of 10 g / l of solvent. After 120 min from the solvent
    00 Oh
    co oo

    s
    0.68 mol of sulfur in a large-crystalline form containing 15 ppm of hydrocarbons and nitrogen, 4 ppm of hydrogen sulfide and 800 ppm of water are divided.
    EXAMPLE 3 Example 1 is repeated, but ammonium rodanide is added in an amount of 20 g / l of solvent. After 120 minutes, 0.75 moles of sulfur in a crystalline form containing 10 ppm of hydrocarbons and nitrogen, 1 ppm of hydrogen sulfide and i500 ppm of water are separated from the solvent.
    II p and me 4 (according to the prototype). Example 1 is repeated, but instead of 1 g / l of ammonium rodanide, dimethylamine is added to the loaded solvent in an amount of 1 g / l of solvent. After 120 minutes, 0.5 mol of sulfur in a crystalline form containing 23 ppm of hydrocarbons and nitrogen, 12 ppm of hydrogen sulfide and 1200 ppm of water is separated from the solvent.
    Comparison of the results of examples 1-3 and comparative example 4 demonstrates the achievement of the objective of the invention.
    Example 5 (use of ammonium rohanide in an amount of less than 1 g / l). Example 1 is repeated, but ammonium rhodanide is added in an amount of 0.5 g / l of solvent. After 120 minutes, 0.51 mol of sulfur in a crystalline form containing 22 ppm of hydrocarbons and nitrogen, 12 ppm of hydrogen sulfide and 1100 ppm of water are separated from the solvent.
    Comparison of the results of comparative example 5 with example 1 and cf.
    r
    five
    With a strong example 4, it shows that when using ammonium rodanide in a quantity lower than the lower limit, the results of the prototype only slightly improve,
    PRI me R 6 (the use of ammonium Rodanide in an amount of more than
    20g / l) Example 3 is repeated, but ammonium rodanide is added in the amount of
    21g / l solvent. After 120 minutes, 0.75 moles of sulfur in a crystalline form containing 10 hours, ppm of hydrocarbons and nitrogen, 1 ppm of hydrogen sulfide and 500 ppm of water are separated from the solvent.
    Comparison of the results of comparative example 6 with example 3 suggests that when exceeding
    The upper limit of the amount of ammonium rodanide added is a positive effect, which is not further enhanced.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    0
    A method of treating a sulfur-containing gas mixture, including washing it with a physical solvent, introducing an oxidizing agent into a saturated solvent to obtain elemental sulfur, then regenerating the solvent and returning it to the washing stage, characterized in that, in order to increase the purity of the sulfur 5 and increase its output to crystalline form, together with the oxidizing agent, ammonium rhodide in the amount of 1-20 g / l of solvent is introduced into the saturated solvent.
    Editor M, Petrova
    Compiled by E. Kornienko
    Tehred L.OliynykCorrector N.Korol
    Order 1731/58
    Circulation 600
    The State Committee for Inventions and Discoveries under the State Committee on Science and Technology of the USSR was entered in 113035, Moscow, Zh-35, 4/5 Raushsk nab.
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    类似技术:
    公开号 | 公开日 | 专利标题
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    WO1985003282A1|1985-08-01|Method and composition for removing sulfides from industrial gas
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    US3656887A|1972-04-18|Method of removing hydrogen sulfide from gaseous mixtures
    US4735788A|1988-04-05|Process of removing of COS and CS2 compounds contained in an industrial gas
    US4020149A|1977-04-26|Process for the production of sulfur
    US4536382A|1985-08-20|Process for the conversion of H2 S and adjustment of the H2 /CO ratio in gaseous streams containing hydrogen sulfide, hydrogen, and carbon monoxide
    US4260590A|1981-04-07|Recovery of salts of anthraquinone disulfonic acid in the Stretford process
    同族专利:
    公开号 | 公开日
    FR2565502A1|1985-12-13|
    CA1236962A|1988-05-24|
    US4666695A|1987-05-19|
    FR2565502B1|1990-05-04|
    DE3421507A1|1985-12-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB394917A|1932-02-11|1933-07-06|Christian Johannes Hansen|Removal of hydrogen sulphide from combustible gases|
    US1917351A|1932-03-22|1933-07-11|Harry C Young|Colloidal, hydrophilic sulphur|
    US2987379A|1958-12-15|1961-06-06|Universal Oil Prod Co|Production of sulfur|
    US3103411A|1959-06-11|1963-09-10|Method of removing hydrogen sulfide |
    US3777010A|1971-06-21|1973-12-04|Chevron Res|H2s removal|
    FR2179513B1|1972-04-10|1975-03-21|Inst Francais Du Petrole|
    FR2213793B2|1972-09-22|1975-08-22|Inst Francais Du Petrole|
    US4155988A|1977-01-28|1979-05-22|Linde Aktiengesellschaft|Reduction of sulfur concentration in physical scrubbing agents|
    US4412981A|1981-09-16|1983-11-01|Phillips Petroleum Company|Conversion of hydrogen sulfide to sulfur by direct oxidation|EP0229587B1|1985-10-11|1991-05-15|UTB Umwelttechnik Buchs AG|Process for desulphurizing hydrogen sulphide-containing gas and installation for carrying out said process|
    US4909945A|1988-07-29|1990-03-20|Union Oil Company Of California|Method for increasing the size of elemental sulfur particles produced by a hydrogen sulfide removal process|
    US5397556A|1992-12-16|1995-03-14|The Regents Of The Unviversity Of California|Process for recovery of sulfur from acid gases|
    US5705135A|1993-11-04|1998-01-06|Gas Research Institute|Composition and process for the removal of hydrogen sulfide from gaseous streams|
    US5736117A|1995-09-29|1998-04-07|Marathon Oil Company|Sulfur debonding agent enhancing sulfur recovery from a hydrogen sulfide conversion process|
    US5733516A|1996-09-09|1998-03-31|Gas Research Institute|Process for removal of hydrogen sulfide from a gas stream|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19843421507|DE3421507A1|1984-06-08|1984-06-08|METHOD FOR REMOVING SULFUR COMPOUNDS FROM GAS MIXTURES|
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