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1.发明申请公开(公告)号：US20170166492A1
公开(公告)日：2017-06-15
申请号：US15443241
申请日：2017-02-27
发明人： Koji HASHIMOTO , Hiroyuki TAKANO , Kouichi IZUMIYA , Naokazu KUMAGAI , Zenta KATO , Hiroyuki SHINOMIYA
CPC分类号： C07C1/12 , B01J23/002 , B01J23/78 , B01J23/83 , B01J37/0236 , B01J37/04 , B01J37/08 , B01J2523/00 , C07C1/0435 , C07C1/044 , C07C2521/06 , C07C2523/745 , C07C2523/75 , C07C2523/755 , C07C2523/78 , C07C2523/83 , C10G2/332 , C10L3/08 , Y02P20/52 , C07C9/04 , B01J2523/23 , B01J2523/3706 , B01J2523/3737 , B01J2523/48 , B01J2523/847 , B01J2523/842 , B01J2523/3718 , B01J2523/845 , B01J2523/3762 , B01J2523/3725 , B01J2523/36 , B01J2523/22 , B01J2523/3712 , B01J2523/375
摘要： Disclosed is a catalyst for methanation reaction producing methane with high conversion by reaction of hydrogen with carbon dioxide, or a gas mixture of carbon dioxide and carbon monoxide, or a gas mixture containing these compounds as the main components. The catalyst is prepared by the steps of mixing (A) aqueous zirconia sol with salts of (B) stabilizing element(s), which is selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Gd, Dy, Ca and Mg, and (C) iron group element(s), drying and calcining the mixture to obtain a catalyst precursor, and subsequent reduction of the precursor. The catalyst comprises, by atomic %, A: 18-70%, B: 1-20% and C: 25-80% based on the elemental states of the metals. The catalyst is characterized by multiple oxide of tetragonal zirconia structure, in which not only the stabilizing element(s) but also a part of the iron group element(s) is incorporated, and on which the iron group element(s) in the metallic state is supported.
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2.发明申请公开(公告)号：US20170165643A1
公开(公告)日：2017-06-15
申请号：US15443233
申请日：2017-02-27
发明人： Koji HASHIMOTO , Hiroyuki TAKANO , Kouichi IZUMIYA , Naokazu KUMAGAI , Zenta KATO , Hiroyuki SHINOMIYA
CPC分类号： C07C1/12 , B01J23/002 , B01J23/78 , B01J23/83 , B01J37/0236 , B01J37/04 , B01J37/08 , B01J2523/00 , C07C1/0435 , C07C1/044 , C07C2521/06 , C07C2523/745 , C07C2523/75 , C07C2523/755 , C07C2523/78 , C07C2523/83 , C10G2/332 , C10L3/08 , Y02P20/52 , C07C9/04 , B01J2523/23 , B01J2523/3706 , B01J2523/3737 , B01J2523/48 , B01J2523/847 , B01J2523/842 , B01J2523/3718 , B01J2523/845 , B01J2523/3762 , B01J2523/3725 , B01J2523/36 , B01J2523/22 , B01J2523/3712 , B01J2523/375
摘要： Disclosed is a catalyst for methanation reaction producing methane with high conversion by reaction of hydrogen with carbon dioxide, or a gas mixture of carbon dioxide and carbon monoxide, or a gas mixture containing these compounds as the main components. The catalyst is prepared by the steps of mixing (A) aqueous zirconia sol with salts of (B) stabilizing element(s), which is selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Gd, Dy, Ca and Mg, and (C) iron group element(s), drying and calcining the mixture to obtain a catalyst precursor, and subsequent reduction of the precursor. The catalyst comprises, by atomic %, A: 18-70%, B: 1-20% and C: 25-80% based on the elemental states of the metals. The catalyst is characterized by multiple oxide of tetragonal zirconia structure, in which not only the stabilizing element (s) but also a part of the iron group element(s) is incorporated, and on which the iron group element(s) in the metallic state is supported.
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3.发明申请公开(公告)号：US20170209851A1
公开(公告)日：2017-07-27
申请号：US15326959
申请日：2015-07-16
CPC分类号： B01J23/755 , B01J23/002 , B01J23/02 , B01J23/78 , B01J35/0006 , B01J35/002 , B01J35/023 , B01J37/0009 , B01J37/0036 , B01J37/009 , B01J37/04 , B01J37/088 , B01J37/16 , B01J37/18 , B01J2523/00 , C07B61/00 , C07C1/12 , C07C2521/06 , C07C2523/02 , C07C2523/755 , C07C2523/78 , B01J2523/23 , B01J2523/48 , B01J2523/847 , B01J2523/31 , C07C9/04
摘要： A methanation reaction catalyst for methanation by allowing carbon dioxide to react with hydrogen, wherein the methanation reaction catalyst includes a stabilized zirconia support having a tetragonal crystal structure and in which Ca and Ni are incorporated in the crystal structure, and Ni in the metal state supported on the stabilized zirconia support, includes the following in atomic % based on metals in the element state, A) Zr composing the stabilized zirconia support: 6 to 62 atomic %, B) Ca incorporated in the crystal structure: 1 to 20 atomic %, and C) a total of Ni incorporated in the crystal structure and Ni supported on the stabilized zirconia support: 30 to 90 atomic %, and the atomic ratio of Ca/(Zr+Ca) is 0.14 to 0.25.
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