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公开(公告)号:US10173202B2
公开(公告)日:2019-01-08
申请号:US15121702
申请日:2015-02-12
发明人: Hideo Hosono , Michikazu Hara , Masaaki Kitano , Toshiharu Yokoyama , Yasunori Inoue , Shinji Kambara
IPC分类号: C01C1/04 , B01J35/00 , B01J27/24 , B01J27/22 , B01J23/46 , B01J35/10 , C01B21/06 , B01J23/745 , B01J23/75
摘要: A catalyst is provided which is used for continuously synthesizing ammonia using a gas containing hydrogen and nitrogen as a raw material, wherein a transition metal which exhibits catalytic activity is supported by a support, and the support is a two-dimensional electride or a precursor thereof. The two-dimensional electride or the precursor thereof is a metal nitride represented by MxNyHz (M represents one or two or more of Group II metals selected from the group consisting of Mg, Ca, Sr and Ba, and x, y and z are in ranges of 1≤x≤11, 1≤y≤8, and 0≤z≤4 respectively, in which x is an integer, and y and z are not limited to an integer) or M3N2 (M is the same as above), or a metal carbide selected from the group consisting of Y2C, Sc2C, Gd2C, Tb2C, Dy2C, Ho2C and Er2C. These catalysts are used for continuously reacting nitrogen with hydrogen, which are raw materials, on the catalyst, wherein the reaction is performed in an ammonia synthesis reaction system under the preferable conditions of a reaction temperature which is equal to or higher than 100° C. and equal to or lower than 600° C., and a reaction pressure which is equal to or higher than 10 kPa and lower than 20 MPa.
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2.
公开(公告)号:US10124319B2
公开(公告)日:2018-11-13
申请号:US15383412
申请日:2016-12-19
发明人: Hideo Hosono , Michikazu Hara , Yasunori Inoue , Masaaki Kitano , Fumitaka Hayashi , Toshiharu Yokoyama , Satoru Matsuishi , Yoshitake Toda
IPC分类号: B01J21/00 , B01J21/16 , C01C1/04 , C01F7/16 , B01J37/08 , B01J37/16 , B01J23/58 , B01J23/02 , B01J35/00 , B01J37/02 , B01J37/04 , C01F7/02 , B01J37/10 , B01J37/18 , B01J23/46 , B01J35/02 , B01J35/10 , C01B33/26 , B01J37/34
摘要: If a conductive mayenite compound having a large specific surface area is obtained, the usefulness thereof in respective applications is remarkably increased. A conductive mayenite compound powder having a conduction electron density of 1015 cm−3 or more and a specific surface area of 5 m2g−1 or more is produced by: the following steps: (1) forming a precursor powder by subjecting a mixture of a starting material powder and water to a hydrothermal treatment; (2) forming a mayenite compound powder by heating and dehydrating the precursor powder; (3) forming an activated mayenite compound powder by heating the compound powder in an inert gas atmosphere or in a vacuum; and (4) injecting electrons into the mayenite compound through a reduction treatment by mixing the activated mayenite compound powder with a reducing agent.
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公开(公告)号:US09573822B2
公开(公告)日:2017-02-21
申请号:US14423303
申请日:2013-08-20
发明人: Hideo Hosono , Michikazu Hara , Yasunori Inoue , Masaaki Kitano , Fumitaka Hayashi , Toshiharu Yokoyama , Satoru Matsuishi , Yoshitake Toda
IPC分类号: C01F7/00 , C01F7/16 , C01C1/04 , B01J37/08 , B01J37/16 , B01J21/16 , B01J23/58 , B01J23/02 , B01J35/00 , B01J37/02 , B01J37/04 , C01F7/02 , B01J37/10 , B01J37/18 , B01J37/34 , B01J35/10
CPC分类号: B01J21/16 , B01J23/02 , B01J23/462 , B01J23/58 , B01J35/0006 , B01J35/0033 , B01J35/026 , B01J35/1009 , B01J35/1014 , B01J37/0201 , B01J37/04 , B01J37/08 , B01J37/082 , B01J37/10 , B01J37/16 , B01J37/18 , B01J37/347 , C01B33/26 , C01C1/0411 , C01F7/02 , C01F7/164 , C01P2006/12 , C01P2006/40 , Y02P20/52 , Y10T428/2982
摘要: If a conductive mayenite compound having a large specific surface area is obtained, the usefulness thereof in respective applications is remarkably increased. A conductive mayenite compound powder having a conduction electron density of 1015 cm−3 or more and a specific surface area of 5 m2g−1 or more is produced by: (1) a step for forming a precursor powder by subjecting a mixture of a starting material powder and water to a hydrothermal treatment; (2) a step for forming a mayenite compound powder by heating and dehydrating the precursor powder; (3) a step for forming an activated mayenite compound powder by heating the compound powder in an inert gas atmosphere or in a vacuum; and (4) a step for injecting electrons into the mayenite compound through a reduction treatment by mixing the activated mayenite compound powder with a reducing agent.
摘要翻译: 如果获得具有大比表面积的导电钙铝石化合物,其在各种应用中的用途显着增加。 导电电子密度为1015cm-3以上,比表面积为5m 2·g -1以上的导电钙铝石类化合物粉末是通过以下方法制造的:(1)通过使起始物 材料粉末和水进行水热处理; (2)通过加热和脱水前体粉末形成钙铝石化合物粉末的步骤; (3)通过在惰性气体气氛或真空中加热化合物粉末来形成活化的钙铝石化合物粉末的步骤; 和(4)通过将活化的钙铝石化合物粉末与还原剂混合来通过还原处理将电子注入钙铝石化合物的步骤。
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公开(公告)号:US20150239747A1
公开(公告)日:2015-08-27
申请号:US14423303
申请日:2013-08-20
发明人: Hideo Hosono , Michikazu Hara , Yasunori Inoue , Masaaki Kitano , Fumitaka Hayashi , Toshiharu Yokoyama , Satoru Matsuishi , Yoshitake Toda
IPC分类号: C01F7/16 , B01J37/08 , B01J37/02 , C01F7/02 , B01J23/58 , B01J37/34 , C01C1/04 , B01J35/00 , B01J37/04 , B01J23/02
CPC分类号: B01J21/16 , B01J23/02 , B01J23/462 , B01J23/58 , B01J35/0006 , B01J35/0033 , B01J35/026 , B01J35/1009 , B01J35/1014 , B01J37/0201 , B01J37/04 , B01J37/08 , B01J37/082 , B01J37/10 , B01J37/16 , B01J37/18 , B01J37/347 , C01B33/26 , C01C1/0411 , C01F7/02 , C01F7/164 , C01P2006/12 , C01P2006/40 , Y02P20/52 , Y10T428/2982
摘要: If a conductive mayenite compound having a large specific surface area is obtained, the usefulness thereof in respective applications is remarkably increased. A conductive mayenite compound powder having a conduction electron density of 1015 cm−3 or more and a specific surface area of 5 m2g−1 or more is produced by: (1) a step for forming a precursor powder by subjecting a mixture of a starting material powder and water to a hydrothermal treatment; (2) a step for forming a mayenite compound powder by heating and dehydrating the precursor powder; (3) a step for forming an activated mayenite compound powder by heating the compound powder in an inert gas atmosphere or in a vacuum; and (4) a step for injecting electrons into the mayenite compound through a reduction treatment by mixing the activated mayenite compound powder with a reducing agent.
摘要翻译: 如果获得具有大比表面积的导电钙铝石化合物,其在各种应用中的用途显着增加。 导电电子密度为1015cm-3以上,比表面积为5m 2·g -1以上的导电钙铝石类化合物粉末是通过以下方法制造的:(1)通过使起始物 材料粉末和水进行水热处理; (2)通过加热和脱水前体粉末形成钙铝石化合物粉末的步骤; (3)通过在惰性气体气氛或真空中加热化合物粉末来形成活化的钙铝石化合物粉末的步骤; 和(4)通过将活化的钙铝石化合物粉末与还原剂混合来通过还原处理将电子注入钙铝石化合物的步骤。
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5.
公开(公告)号:US10322940B2
公开(公告)日:2019-06-18
申请号:US15532877
申请日:2015-12-04
IPC分类号: C01B3/04 , C01C1/04 , B01J21/18 , B01J23/46 , B01J23/58 , B01J23/63 , B01J27/24 , B01J35/00 , B01J35/10 , B01J37/00 , B01J37/02 , B01J37/04 , B01J37/08 , B01J23/648 , C01B21/092
摘要: An ammonia synthesis catalyst having high activity is obtained by having a two-dimensional electride compound having a lamellar crystal structure such as Ca2N support a transition metal. However, since the two-dimensional electride compound is unstable, the stability of the catalyst is low. In addition, in cases where a two-dimensional electride compound is used as a catalyst support, it is difficult to shape the catalyst depending on reactions since the two-dimensional electride compound has poor processability. A composite which includes a transition metal, a support and a metal amide compound, wherein the support is a metal oxide or a carbonaceous support; and the metal amide compound is a metal amide compound represented by general formula (1). M(NH2)x (1) (In general formula (1), M represents at least one metal atom selected from the group consisting of Li, Na, K, Be, Mg, Ca, Sr, Ba and Eu; and x represents the valence of M.).
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公开(公告)号:US10118162B2
公开(公告)日:2018-11-06
申请号:US15121702
申请日:2015-02-12
发明人: Hideo Hosono , Michikazu Hara , Masaaki Kitano , Toshiharu Yokoyama , Yasunori Inoue , Shinji Kambara
IPC分类号: C01C1/04 , B01J35/00 , B01J27/24 , B01J27/22 , B01J23/46 , B01J35/10 , C01B21/06 , B01J23/745 , B01J23/75
摘要: A catalyst is provided which is used for continuously synthesizing ammonia using a gas containing hydrogen and nitrogen as a raw material, wherein a transition metal which exhibits catalytic activity is supported by a support, and the support is a two-dimensional electride or a precursor thereof. The two-dimensional electride or the precursor thereof is a metal nitride represented by MxNyHz (M represents one or two or more of Group II metals selected from the group consisting of Mg, Ca, Sr and Ba, and x, y and z are in ranges of 1≤x≤11, 1≤y≤8, and 0≤z≤4 respectively, in which x is an integer, and y and z are not limited to an integer) or M3N2 (M is the same as above), or a metal carbide selected from the group consisting of Y2C, Sc2C, Gd2C, Tb2C, Dy2C, Ho2C and Er2C. These catalysts are used for continuously reacting nitrogen with hydrogen, which are raw materials, on the catalyst, wherein the reaction is performed in an ammonia synthesis reaction system under the preferable conditions of a reaction temperature which is equal to or higher than 100° C. and equal to or lower than 600° C., and a reaction pressure which is equal to or higher than 10 kPa and lower than 20 MPa.
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公开(公告)号:US20170095793A1
公开(公告)日:2017-04-06
申请号:US15383412
申请日:2016-12-19
发明人: Hideo Hosono , Michikazu Hara , Yasunori Inoue , Masaaki Kitano , Fumitaka Hayashi , Toshiharu Yokoyama , Satoru Matsuishi , Yoshitake Toda
CPC分类号: B01J21/16 , B01J23/02 , B01J23/462 , B01J23/58 , B01J35/0006 , B01J35/0033 , B01J35/026 , B01J35/1009 , B01J35/1014 , B01J37/0201 , B01J37/04 , B01J37/08 , B01J37/082 , B01J37/10 , B01J37/16 , B01J37/18 , B01J37/347 , C01B33/26 , C01C1/0411 , C01F7/02 , C01F7/164 , C01P2006/12 , C01P2006/40 , Y02P20/52 , Y10T428/2982
摘要: If a conductive mayenite compound having a large specific surface area is obtained, the usefulness thereof in respective applications is remarkably increased. A conductive mayenite compound powder having a conduction electron density of 1015 cm−3 or more and a specific surface area of 5 m2g−1 or more is produced by: the following steps: (1) forming a precursor powder by subjecting a mixture of a starting material powder and water to a hydrothermal treatment; (2) forming a mayenite compound powder by heating and dehydrating the precursor powder; (3) forming an activated mayenite compound powder by heating the compound powder in an inert gas atmosphere or in a vacuum; and (4) injecting electrons into the mayenite compound through a reduction treatment by mixing the activated mayenite compound powder with a reducing agent.
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