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OXYNITRIDE HYDRIDE, METAL CARRIER CONTAINING OXYNITRIDE HYDRIDE, AND CATALYST FOR AMMONIA SYNTHESIS NEW

外国特許コード F210010305
整理番号 J1014-33WO
掲載日 2021年1月29日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2020JP007774
国際公開番号 WO 2020175558
国際出願日 令和2年2月26日(2020.2.26)
国際公開日 令和2年9月3日(2020.9.3)
優先権データ
  • 特願2019-034878 (2019.2.27) JP
発明の名称 (英語) OXYNITRIDE HYDRIDE, METAL CARRIER CONTAINING OXYNITRIDE HYDRIDE, AND CATALYST FOR AMMONIA SYNTHESIS NEW
発明の概要(英語) Provided is a perovskite-type oxynitride hydride that is, when used as a catalyst carrier, capable of facilitating synthesis by achieving both enhancement and stabilization of the catalyst performance. The present invention provides an oxynitride hydride represented by general formula (1a) or (1b). ABO3-xNyHz (1a) AB2O4-xNyHz (1b) (In general formulas (1a) and (1b), A indicates at least one type selected from the group consisting of Ba and Sr; B indicates at least one type selected from the group consisting of Ce, La, and Y; x indicates a number represented by 0.2 ≤ x ≤ 2.0; y indicates a number represented by 0.1 ≤ y ≤ 1.0; and z indicates a number represented by 0.1 ≤ z ≤ 1.0.)
従来技術、競合技術の概要(英語) Background Art
An exemplary ammonia synthesis method, Hough Bosh method, uses a dual accelerated iron (d o u b l y p r omo t e d i r o n) catalyst containing A derivative 2 ○ 3 and K2 ○ of several mass% in F e3 ○ 4, The method for producing ammonia comprises directly reacting the catalyst with a mixed gas of nitrogen and hydrogen under high temperature and high pressure conditions. This technique is currently being industrially used in the manufacturing process which is almost completed.
A method of synthesizing ammonia at a temperature lower than the reaction temperature of the Harber-Bosh method has been studied. Catalysts capable of synthesizing ammonia by contact with nitrogen and hydrogen have been studied, and transition metals have been studied as their catalytically active components. Of these, a method in which ruthenium (R u) is supported on various supports as a catalytically active component and used as a catalyst for ammonia synthesis is proposed as an efficient method (, for example, Patent Document 1).
In addition, (, for example, Non-Patent Document 1), a metal-supported catalyst in which a metal oxide B aCe ○ 3 having a perovskite-type crystal structure is used as a support and R u is supported is reported. In addition, (, for example, Non-Patent Document 2), reported is a metal-supported catalyst (R U / B aCe i-xYx ○ 3-y) in which B aCe ○ 3 doped with Z r is used as a support and R u is supported.
— direction, nitrogen-doped B aCe2 .circle. 4 (oxynitride, B aCe2 (0 , N) 4), and the like have been reported, but there is no disclosure to use this as a catalyst for ammonia synthesis. (, for example, Non-Patent Document 3).
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • 発明者(英語)
  • KITANO Masaaki
  • HOSONO Hideo
  • YOKOYAMA Toshiharu
  • KUJIRAI Jun
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN WS ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
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