Method of producing expoxides in the gaseous phase
    2.
    发明授权
    Method of producing expoxides in the gaseous phase 失效
    在气相中产生氧化物的方法

    公开(公告)号:US06323349B2

    公开(公告)日:2001-11-27

    申请号:US09764140

    申请日:2001-01-19

    IPC分类号: C07D30112

    CPC分类号: B01J29/89 C07D301/12

    摘要: A method for epoxidation of olefins with 2 to 6 C atoms, especially propene, with hydrogen peroxide in the gas phase at a temperature below 250° C. The reaction is carried out by bringing a gas mixture containing the olefin, hydrogen peroxide and water into contact with the catalyst from the series of compounds of an element of the 4th to the 6th subgroup of the periodic table or of arsenic or selenium and molecular sieves in the absence of a liquid phase. Titanium-containing molecular sleeves are preferred catalysts.

    摘要翻译: 在低于250℃的温度下,在气相中用过氧化氢将具有2至6个C原子,特别是丙烯的烯烃环氧化的方法。通过将含有烯烃,过氧化氢和水的气体混合物 在不存在液相的情况下,与来自元素周期表第4至第6族元素的化合物系列或砷或硒和分子筛的催化剂接触。 含钛分子套管是优选的催化剂。

    Method for modification of a methane-containing gas stream
    4.
    发明授权
    Method for modification of a methane-containing gas stream 有权
    修改含甲烷气流的方法

    公开(公告)号:US09051526B2

    公开(公告)日:2015-06-09

    申请号:US13526482

    申请日:2012-06-18

    IPC分类号: C10L3/10 C01B3/24 C10G15/12

    摘要: A method for modification of a methane-containing gas stream, comprising the steps of: i) withdrawal of at least one substream from a methane-containing gas stream; ii) treatment of the substream with an electrically generated plasma, generating a modified gas composition which comprises a lower fraction of methane than the methane-containing gas stream used and iii) return of modified gas composition into the methane-containing gas stream. This method makes possible the storage of excess power in a natural gas line grid.

    摘要翻译: 一种用于改变含甲烷气流的方法,包括以下步骤:i)从含甲烷的气流中取出至少一个子流; ii)用电产生的等离子体处理子流,产生改性气体组合物,其包含甲烷的比例低于使用的含甲烷气流,并且iii)将改性气体组合物返回到含甲烷气流中。 这种方法可以在天然气线路网格中存储多余的电力。

    Method for Modification of a Methane-Containing Gas Stream
    8.
    发明申请
    Method for Modification of a Methane-Containing Gas Stream 有权
    含甲烷气流改性方法

    公开(公告)号:US20120318661A1

    公开(公告)日:2012-12-20

    申请号:US13526482

    申请日:2012-06-18

    IPC分类号: B01J19/08

    摘要: A method for modification of a methane-containing gas stream, comprising the steps of: i) withdrawal of at least one substream from a methane-containing gas stream; ii) treatment of the substream with an electrically generated plasma, generating a modified gas composition which comprises a lower fraction of methane than the methane-containing gas stream used and iii) return of modified gas composition into the methane-containing gas stream. This method makes possible the storage of excess power in a natural gas line grid.

    摘要翻译: 一种用于改变含甲烷气流的方法,包括以下步骤:i)从含甲烷的气流中取出至少一个子流; ii)用电产生的等离子体处理子流,产生改性气体组合物,其包含甲烷的比例低于使用的含甲烷气流,并且iii)将改性气体组合物返回到含甲烷气流中。 这种方法可以在天然气线路网格中存储多余的电力。

    Selective catalytic reduction
    9.
    发明授权
    Selective catalytic reduction 失效
    选择性催化还原

    公开(公告)号:US07431906B2

    公开(公告)日:2008-10-07

    申请号:US10478031

    申请日:2002-03-21

    IPC分类号: B01D53/56

    摘要: A process for the selective catalytic reduction of nitrogen oxides with ammonia in a lean-mix exhaust gas from a combustion process operated with a first, lean-mix air/fuel mixture, wherein the ammonia required for selective reduction is obtained from a second, rich-mix air/fuel mixture which contains nitrogen monoxide by reduction of the nitrogen monoxide in a NH3 synthesis step to give ammonia with the formation of a product gas stream, and where the nitrogen monoxide-containing second air/fuel mixture is supplied to the NH3 synthesis step for reduction of the nitrogen monoxide to ammonia over a three-way converter catalyst and the ammonia formed is separated from the product gas stream and is stored in a storage medium for use as and when required for selective catalytic reduction.

    摘要翻译: 一种在用第一稀混合空气/燃料混合物操作的燃烧过程的稀混废气中用氨选择性催化还原氮氧化物的方法,其中选择还原所需的氨是从第二种富含 - 通过在NH 3合成步骤中还原一氧化氮而混合含有一氧化氮的空气/燃料混合物,以产生形成产物气流的氨,并且其中含一氧化氮的第二空气 /燃料混合物供应到NH 3合成步骤,通过三元转化催化剂将一氧化氮还原成氨,并将形成的氨与产物气流分离并储存在储存器 用于选择性催化还原所需的介质。