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    PROCESS AND BIOFILTER SYSTEM FOR H2S REMOVAL FROM A H2S CONTAMINATED ENERGY PRODUCTION GAS STREAM CONTAINING METHANE AND USE OF SUCH A BIOFILTER SYSTEM
    2.
    发明申请
    PROCESS AND BIOFILTER SYSTEM FOR H2S REMOVAL FROM A H2S CONTAMINATED ENERGY PRODUCTION GAS STREAM CONTAINING METHANE AND USE OF SUCH A BIOFILTER SYSTEM 有权
    从H2S污染生产能源生产气流中除去H2S的过程和生物过滤系统及其生物过滤系统的使用

    公开(公告)号：US20160200996A1

    公开(公告)日：2016-07-14

    申请号：US14916614

    申请日：2014-09-18

    Applicant: YARA INTERNATIONAL ASA

    Inventor： Marina Ettl ,  Wolfram Franke ,  Werner Van Borm

    IPC: C10L3/10

    CPC classification number: C10L3/103 ,  C10L2290/141 ,  C10L2290/26 ,  C10L2290/547

    Abstract: The invention relates to a process and a biofilter system (10) for removing H2S from a H2S contaminated energy production gas stream containing methane. The aqueous biofilter system comprises a biofilter (6) having biofilter support material constituting a biofilter bed supporting a humidified biofilm having microorganisms that are capable of oxidizing H2S. The process comprises the steps of contacting the H2S contaminated energy production gas stream with the microorganisms of the humidified biofilm, and oxidation of at least part of the H2S in the H2S contaminated energy production gas stream by the microorganisms, resulting in a H2S depleted energy production gas stream, wherein the process further comprises the step of adding an aqueous nitrate solution to the H2S contaminated energy production gas stream prior to being contacted with the microorganisms, enabling the microorganisms to oxidize the H2S under anoxic conditions. The invention further-more relates to the use of such a biofilter system (10) in the removal of H2S from a H2S containing methane.

    Abstract translation: 本发明涉及用于从含有甲烷的H 2 S污染的能量产生气流中除去H 2 S的方法和生物过滤系统（10）。 含水生物过滤器系统包括具有生物过滤器支撑材料的生物过滤器（6），其构成生物过滤床，其支持具有能够氧化H 2 S的微生物的加湿生物膜。 该方法包括以下步骤：使H2S污染的能量产生气流与增湿的生物膜的微生物接触，以及通过微生物对H2S污染的能量产生气流中的至少部分H2S的氧化，导致H2S耗尽的能量产生 气流，其中所述方法还包括在与微生物接触之前将硝酸水溶液加入到受H2S污染的能量产生气流中的步骤，使微生物能够在缺氧条件下氧化H 2 S. 本发明还涉及这种生物过滤器系统（10）在从含H 2 S的甲烷中除去H 2 S的用途。

    Process and biofilter system for H2S removal from a H2S contaminated energy production gas stream containing methane and use of such a biofilter system
    3.
    发明授权
    Process and biofilter system for H2S removal from a H2S contaminated energy production gas stream containing methane and use of such a biofilter system 有权

    公开(公告)号：US09890343B2

    公开(公告)日：2018-02-13

    申请号：US14916614

    申请日：2014-09-18

    Applicant: YARA INTERNATIONAL ASA

    Inventor： Marina Ettl ,  Wolfram Franke ,  Werner Van Borm

    IPC: A61L9/01 ,  C10L3/10

    CPC classification number: C10L3/103 ,  C10L2290/141 ,  C10L2290/26 ,  C10L2290/547

    Abstract: The invention relates to a process and a biofilter system (10) for removing H2S from a H2S contaminated energy production gas stream containing methane. The aqueous biofilter system comprises a biofilter (6) having biofilter support material constituting a biofilter bed supporting a humidified biofilm having microorganisms that are capable of oxidizing H2S. The process comprises the steps of contacting the H2S contaminated energy production gas stream with the microorganisms of the humidified biofilm, and oxidation of at least part of the H2S in the H2S contaminated energy production gas stream by the microorganisms, resulting in a H2S depleted energy production gas stream, wherein the process further comprises the step of adding an aqueous nitrate solution to the H2S contaminated energy production gas stream prior to being contacted with the microorganisms, enabling the microorganisms to oxidize the H2S under anoxic conditions. The invention furthermore relates to the use of such a biofilter system (10) in the removal of H2S from a H2S contaminated energy production gas stream containing methane.

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