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Kinetic Study and Selectovity Control of New Hydrogenation System Using a Hydrogen Storage Alloy (Metal) Sheet

使用储氢合金（金属）片的新型加氢系统的动力学研究和选择性控制

基本信息

批准号：
10650815
负责人：
INOUE Hiroshi
金额：
$ 2.24万
依托单位：
Osaka Prefecture University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 1999
项目状态：
已结题

项目摘要

The result obtained in this study for three years are summarized as follows.1. In the hydrogenation of alkyne on a palladized Pd sheet, the selectivity of alkane, which was evaluated as the ratio of the production rate of alkane to alkane, increased with an increase in current for the production of atomic hydrogen.2. In the hydrogenation of α,β-unsaturated aldehyde with C=C and C=O bonds on a palladized Pd sheet, the C=C bond was solely hydrogenated to saturated aldehyde. On Pt-loaded palladized Pd sheet, not only C=C bond but also C=O were hydrogenated to saturated aldehyde and unsaturated alcohol, suggesting that the distribution of product depended on the kind of the loaded metal.3. In the reduction of NィイD22ィエD2O gas on a palladized Pd sheet, NィイD22ィエD2 was solely produced. In the case of the reduction of nitrate solution, nitrite and NィイD22ィエD2 were consecutively produced on a Cu-laded palladized Pd sheet while ammonia was solely produced on a Ni-loaded palladized Pd sheet.4. New dehydrogenation system was constructed by combining the dehydrogenation of formic acid with potentiostatic oxidation of atomic hydrogen permeating through the palladized Pd sheet. From a theoretical analysis of time course of the oxidation current of permeated atomic hydrogen, the diffusion coefficient of hydrogen was evaluated and it was in good agreement with the previously evaluated value.

本研究历时三年，所得结果总结如下：1。在钯化钯片上进行烷烃加氢反应时，烷烃的选择性（以烷烃产率与烷烃产率之比）随着原子氢生产电流的增加而增加。在钯化Pd片上用C=C和C=O键加氢α、β-不饱和醛时，C=C键完全氢化成饱和醛。在负载pt的钯化Pd片上，不仅C=C键被氢化成饱和醛和不饱和醇，而且C=O键也被氢化成饱和醛和不饱和醇，表明产物的分布与负载金属的种类有关。在钯化Pd片上还原N′′′D22′′r2o气体，只生成N′′D22′r2o。在硝酸溶液还原的情况下，在含cu的钯化Pd片上连续产生亚硝酸盐和N μ c - D22 μ c - D2，而在含ni的钯化Pd片上只产生氨。将甲酸脱氢与原子氢通过钯膜的恒电位氧化相结合，构建了新的脱氢体系。从理论分析渗透原子氢氧化电流的时间过程出发，计算了氢的扩散系数，结果与前人的计算结果吻合较好。