Selective catalytic oxidation of lower alkanes

低级烷烃的选择性催化氧化

• 批准号: 03650682
• 负责人: TAKITA Yusaku
• 金额: $ 1.15万
• 依托单位: OITA University, Faculty of Engineering
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03650682/
• 关键词: Catalytic Oxidation; Paraffin Oxidation; Maleic Anhydride Synthesis; Oxidaive Dehydrogenation; Promoter; Vanadium; Phosphorus; Oxide; 助触媒効果

A new preparation method to introduce promoter ions into the (VO)_2P_2O_7 crystal lattice was developed. A precipitate was obtained by the addition of a small amount of water to a blue isobutanol refluxing solution which contained reduced and dissolved V_2O_5 and the acetylacetonate of a promoter element. The catalyst which was prepared by the calcination of this precipitate, has the same composition as that of a starting solution. No evidence showing localization of the added promoter element, was obtained by the observation of the catalyst using EDX and WDX. ESCA depth profile of the component elements suggested the homogeneity between the surface and the bulk of the catalyst. There is a linear relationship between the activity of the catalysts for MA formation and position of IR V=O absorption bands of the catalysts containing promoter elements. The active sites of the catalysts for the oxidation are thought to be the surface V=O.It was found that metal pyrophosphates are effective for the partial oxidation of propane and iso-butane. Iso-butane was oxidized into iso-butane with the selectivity of >80% at 500-550ﾟC over Ni_2P_2O_7.

提出了一种将促进剂离子引入（VO）_2P_2O_7晶格的新制备方法。在含有还原溶解的V_2O_5和启动子元素乙酰丙酮的蓝色异丁醇回流溶液中加入少量水，得到沉淀。由该沉淀物煅烧制备的催化剂与起始溶液具有相同的组成。通过EDX和WDX对催化剂的观察，没有证据表明添加的启动子元素的定位。组成元素的ESCA深度分布表明催化剂表面和主体之间的均匀性。催化剂形成MA的活性与催化剂的IR V=O吸收带的位置呈线性关系。氧化催化剂的活性位点被认为是表面V=O。研究发现，金属焦磷酸盐对丙烷和异丁烷的部分氧化有较好的效果。以Ni_2P_2O_7为催化剂，在500 ~ 550℃的温度下，以bbb80 %的选择性氧化异丁烷。

项目成果

Y.Takita,T.Sakai,Y.Mizuhara,T.Ishihara: "Adsorption of Water Vapor on Crystallne Phases of V-P-O." Chemistry Letters. 1992. 415-418 (1992)

Y.Takita、T.Sakai、Y.Mizuhara、T.Ishihara：“V-P-O 结晶相上水蒸气的吸附”。

Y.Takita,K.Tanaka,S.Ichimaru,Y.Mizuhara,Y.Abe,T.Ishihara,: "Incorporation of Promoter Elements into Crystal Lattice of (VO)_2P_2O_7 and Its Promotion Effects on The Oxidation of n-Butane into Maleic Anhydride" Applied Catalysis.

Y.Takita,K.Tanaka,S.Ichimaru,Y.Mizuhara,Y.Abe,T.Ishihara,：(VO)_2P_2O_7晶格中加入促进剂元素及其对正丁烷氧化成的促进作用

Y. Takita, T. Hashiguchi, and H. Matsunosako: "The Vapor-Phase Preparation of V-P-O Catalysts Effective for Butane Oxidation to Maleic Anhydride" Bull. Chem. Soc. Japan. 61. 3737-3739 (1988)

Y. Takita、T. Hashiguchi 和 H. Matsunosako：“有效用于丁烷氧化成马来酸酐的 V-P-O 催化剂的气相制备”公报。

Y. Takita, K. Tanaka, S. Ichimaru, Y. Mizuhara Y. Abe, T. Ishihara: "Incorporation of Promoter Elements into Crystal Lattice of (VO)_2P_2O_7 and Its Promotion Effects on The Oxidation of n-Butane into Maleic Anhydride" Applied Catalysis.

Y. Takita、K. Tanaka、S. Ichimaru、Y. Mizuhara Y. Abe、T. Ishihara：“(VO)_2P_2O_7晶格中促进剂元素的掺入及其对正丁烷氧化成马来酸酐的促进作用

滝田 祐作,菊川 伸午,水原 由加子,石原 達己: "V-P-O触媒上でのプロパンの部分酸化と助触媒." 日本化学会誌. 1992. 354-360 (1992)

Yusaku Takita、Nobuo Kikukawa、Yukako Mizuhara、Tatsumi Ishihara：“V-P-O 催化剂上的丙烷和助催化剂的部分氧化。”日本化学学会杂志 1992 年。354-360 (1992)