Method for partial oxidation of methane using dense, oxygen selective permeation ceramic membrane
    2.
    发明授权
    Method for partial oxidation of methane using dense, oxygen selective permeation ceramic membrane 有权
    使用致密的氧选择性渗透陶瓷膜部分氧化甲烷的方法

    公开(公告)号:US07105147B2

    公开(公告)日:2006-09-12

    申请号:US10363699

    申请日:2001-09-17

    Abstract: Methane in a feedstock gas having methane as its main component, is partially oxidized with oxygen, which selectively permeates from a first side to a second side of a oxygen selective permeation ceramic membrane. Air is contacted with the first side of the oxygen selective permeation ceramic membrane, and the feedstock gas containing methane is contacted with the second side of the oxygen selective permeation ceramic membrane. A first catalyst for partial oxidation of methane is disposed two-dimensionally on the second side of the oxygen selective permeation ceramic membrane, and a second catalyst for partial oxidation of methane is disposed three-dimensionally in the feedstock gas stream downstream from the first catalyst. Furthermore, steam is mixed into the feedstock gas stream at a ratio of 0.25 to 0.5 moles of steam based on the moles of carbon in the feedstock gas.

    Abstract translation: 以甲烷为主要成分的原料气体中的甲烷被氧气部分氧化,氧气选择性地从氧选择渗透陶瓷膜的第一侧渗透到第二面。 空气与氧选择渗透陶瓷膜的第一侧接触,含有甲烷的原料气与氧选择渗透陶瓷膜的第二面接触。 用于部分氧化甲烷的第一催化剂二维地设置在氧选择性渗透陶瓷膜的第二侧上,并且用于甲烷部分氧化的第二催化剂三维地设置在第一催化剂下游的原料气流中。 此外,基于原料气体中的碳摩尔数,将蒸汽以0.25至0.5摩尔蒸汽的比例混合到原料气流中。

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