Chemical-biological process for the removal of h2s from a gas
    2.
    发明申请
    Chemical-biological process for the removal of h2s from a gas 失效
    用于从气体中去除h2的化学 - 生物过程

    公开(公告)号:US20060251571A1

    公开(公告)日:2006-11-09

    申请号:US10538925

    申请日:2003-12-04

    IPC分类号: C01B17/02

    摘要: The present application relates to a process for removing hydrogen sulfide H2S from a gas (1) by contacting said gas with a liquid solution (2) containing ferric sulfate in an absorption column (RC). Ferric sulfate and H2S react at room temperature and at a pressure ranging from 1 to 1.2 atm. Ferric ions being reduced to two-valent iron and sulfide oxidised to elemental sulfur. The liquid (4) coming out of the absorption column is filtered in two steps, the retentate (6, 8) comprising elemental sulfur, the filtrate (5, 7) containing the iron ions. The filtrate is sent to a bioreactor (RB) for regeneration, i.e. oxidation of iron to Fe3+ by means of thiobacillus ferroxidans and air injection (10). The regenerated solution is reused in the absorption column (RC). The process faces the problems relating to the alignment between the chemical step and the biological step in order to obtain a process which can stably run continuously.

    摘要翻译: 本申请涉及通过在吸收塔(RC)中使所述气体与含有硫酸铁的液体溶液(2)接触从气体(1)除去硫化氢H 2 S的方法。 硫酸铁和H 2 S在室温和1至1.2atm的压力下反应。 铁离子还原成二价铁和硫化物氧化成元素硫。 从吸收塔出来的液体(4)分两个步骤过滤,包含元素硫的渗余物(6,8),含有铁离子的滤液(5,7)。 将滤液送到生物反应器(RB)进行再生,即通过硫杆菌硫氧芽孢杆菌和空气注射(10)将铁氧化成Fe 3+。 再生溶液在吸收塔(RC)中重复使用。 该方法面临与化学步骤和生物学步骤之间的对准有关的问题,以获得可以稳定地连续运行的方法。

    Chemical-biological process for the removal of H2S from a gas
    3.
    发明授权
    Chemical-biological process for the removal of H2S from a gas 失效
    用于从气体中除去H 2 S的化学 - 生物过程

    公开(公告)号:US07438886B2

    公开(公告)日:2008-10-21

    申请号:US10538925

    申请日:2003-12-04

    IPC分类号: B01D53/52 C01B17/04 C01B17/05

    摘要: The present application relates to a process for removing hydrogen sulfide H2S from a gas (1) by contacting said gas with a liquid solution (2) containing ferric sulfate in an absorption column (RC). Ferric sulfate and H2S react at room temperature and at a pressure ranging from 1 to 1.2 atm. Ferric ions being reduced to two-valent iron and sulfide oxidised to elemental sulfur. The liquid (4) coming out of the absorption column is filtered in two steps, the retentate (6, 8) comprising elemental sulfur, the filtrate (5, 7) containing the iron ions. The filtrate is sent to a bioreactor (RB) for regeneration, i.e. oxidation of iron to Fe3+ by means of thiobacillus ferroxidans and air injection (10). The regenerated solution is reused in the absorption column (RC). The process faces the problems relating to the alignment between the chemical step and the biological step in order to obtain a process which can stably run continuously.

    摘要翻译: 本申请涉及通过在吸收塔(RC)中使所述气体与含有硫酸铁的液体溶液(2)接触从气体(1)除去硫化氢H 2 S的方法。 硫酸铁和H 2 S在室温和1至1.2atm的压力下反应。 铁离子还原成二价铁和硫化物氧化成元素硫。 从吸收塔出来的液体(4)分两个步骤过滤,包含元素硫的渗余物(6,8),含有铁离子的滤液(5,7)。 将滤液送到生物反应器(RB)进行再生,即通过硫杆菌硫氧芽孢杆菌和空气注射(10)将铁氧化成Fe 3+。 再生溶液在吸收塔(RC)中重复使用。 该方法面临与化学步骤和生物学步骤之间的对准有关的问题,以获得可以稳定地连续运行的方法。

    Compositions for depolluting fresh water and salt water bodies
    4.
    发明授权
    Compositions for depolluting fresh water and salt water bodies 失效
    用于污染淡水和盐水体的组合物

    公开(公告)号:US4414333A

    公开(公告)日:1983-11-08

    申请号:US315473

    申请日:1981-10-27

    摘要: Compositions are disclosed, which are adapted to depollute fresh and sea water bodies from crude oil and petroleum product pollution by microbial action. The growth of micro-organisms capable of metabolizing hydrocarbons is exalted by certain combination of nutrients, such as lecithin as a phosphorus source, hydantoins, amides allophanates, polyamines, acyl-ureas and esters of the hydantoic and allantoic acids as the nitrogen sources. Ureido-derivatives of amides are also contemplated as additional nutrients.

    摘要翻译: 公开了适用于通过微生物作用对原油和石油产品污染对新鲜海水体和海水体产生污染的组合物。 能够代谢碳氢化合物的微生物的生长由作为磷源的卵磷脂,乙内酰脲,酰胺脲基甲酸酯,多胺,酰基脲和乙酸和尿囊酸的酯作为氮源的营养物质的某些组合而得以提高。 酰胺的脲基衍生物也被考虑作为额外的营养物质。

    Method for depolluting fresh and sea water from petroleum products
    6.
    发明授权
    Method for depolluting fresh and sea water from petroleum products 失效
    从石油产品中污染新鲜和海水的方法

    公开(公告)号:US4087356A

    公开(公告)日:1978-05-02

    申请号:US738697

    申请日:1976-11-04

    摘要: A method is disclosed, for depolluting fresh and sea waters from hydrocarbonaceous pollutants, the improvement consisting in that the usual microorganism cultures used for oxidizing the hydrocarbons are integrated by lipophilic and floating compounds which contain slow-release nitrogen in a form which can be assimilated by such micro-organisms. Ureidic derivatives of higher aldehydes are the preferred compounds. Inert supports can be used, if necessary, and still better results are achieved when using also nonionic dispersants and freeze-dried hydrocarbon-oxidizing microorganisms.

    摘要翻译: 公开了一种用于从含烃污染物污染新鲜海水和海水的方法,其改进包括用于氧化烃的通常微生物培养物通过亲脂性和漂浮的化合物整合,其中含有缓释氮,其形式可以被 这样的微生物。 较高级醛的尿素衍生物是优选的化合物。 如果需要,可以使用惰性载体,并且当使用非离子分散剂和冷冻干燥的烃氧化微生物时,还可获得更好的结果。

    Solid composition of organic fertilizer and of organo-mineral fertilizer
    10.
    发明授权
    Solid composition of organic fertilizer and of organo-mineral fertilizer 失效
    有机肥和有机矿物肥料的固体组成

    公开(公告)号:US4604125A

    公开(公告)日:1986-08-05

    申请号:US619038

    申请日:1984-06-11

    IPC分类号: C05F5/00

    CPC分类号: C05F5/006

    摘要: There is provided a solid composition of an organic fertilizer which is the solid product obtained by desalting a vinasse with phosphoric acid in the presence of ethanol. The product contains at least 1.5% of nitrogen, at least 4% of P.sub.2 O.sub.5, at least 5% of K.sub.2 O and at least 8% of carbon. Another composition, this one comprising a mixture of the foregoing with one or more inorganic or organic nitrogen, phosphorus or potassium compounds to yield a complex organo-mineral fertilizer, is also described.

    摘要翻译: 提供了一种有机肥料的固体组合物,它是通过在乙醇存在下用磷酸对葡萄酒进行脱盐得到的固体产物。 产物含有至少1.5%的氮,至少4%的P 2 O 5,至少5%的K 2 O和至少8%的碳。 还描述了另一种组合物,该组合物包含前述物质与一种或多种无机或有机氮,磷或钾化合物的混合物,以产生复合有机矿物肥料。