EXERGY ENHANCEMENT AND REPRODUCTION THROUGH HYDROGEN PRODUCTION

通过制氢增强能源并实现再生

• 批准号: 06246104
• 负责人: OHYA Haruhiko
• 金额: $ 80.32万
• 依托单位: Yokohama National University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06246104/
• 关键词: Exregy; Hydrogen Energy; Thermochemical cycle; Inorganic Separation Membrane; Cottosion Resistant; Second Virial Coefficient

The representative results are summarized as :(1) The reaction characteristics of solid-reactants for UT-3 process were improved by ultrasonic treatment and addition of graphite and lauric acid through the alkoxide method. Thermal and exergy efficiencies of the Process were calculated. Combination of the process with a nuclear reactor is considered, and the system to adjust electricity generation to match load fluctuation is proposed.(2) Rapid synthesis of hydrogen and /or syngas by catalytic reforming of methane and a natural-gas-like mixture was investigated adopting our newly developed four-component catalyst (Ni-CeィイD22ィエD2OィイD23ィエD2-Pt-Rh). In this system, the exergy efficiency was estimated to be as high as 80%.(3) Halogen corrosion behaviors of pure metal films, and Nimonic80A among Ni-base heat-resistant alloys were selected as corrosion-resistant materials at high temperature. It was found that Nimonic80A could be used as the structural material for the UT-3 process plant equi … More pment in all environment.(4) MOCVD was applied to improve the corrosion resistance of Nimonic80A in HBr-HィイD22ィエD2O-NィイD22ィエD2 atmosphere at high temperature. Ir and/or YSZ coating on the alloy by MOCVD were effective to prevent the corrosion in the UT-3 condition at 1073K.(5) Characteristics of zirconia-silica composite membrane prepared by the alkoxide method were investigated. Higher zirconia content in the zirconia-silica composite membranes showed the high permeance of HィイD22ィエD2, more than 10ィイD1-6ィエD1mol/(mィイD12ィエD1・Pa・s). The maximum separation factors for HィイD22ィエD2 over HィイD22ィエD2O and for HィイD22ィエD2 over HBr, 4.1 and 259.(6) Amorphous silica-based membranes prepared by CVD method were modified so as to acquire HィイD22ィエD2-or HィイD22ィエD2O selectivity and applied to hydrogen recovery at 220-560℃ from HィイD22ィエD2-HィイD22ィエD2O-HBr mixture. Exergy losses for the hydrogen separation were calculated for plausible cases to be smallest for a two-stage separation system, where steam is separated from a HィイD22ィエD2-HィイD22ィエD2O-HBr mixture using a HィイD22ィエD2O-selective membrane before HィイD22ィエD2 separation. Less

（1）超声处理和醇盐法添加石墨和月桂酸改善了UT-3工艺固体反应物的反应特性。计算了该工艺的热效率和火用效率。考虑了该过程与核反应堆的组合，并提出了调节发电量以匹配负荷波动的系统。(2)采用我们新开发的四组分催化剂（Ni-Ce_（22）O_（23）O_（24）O_（23）O_（2在该系统中，火用效率估计高达80%。(3)研究了纯金属膜的卤素腐蚀行为，并在镍基耐热合金中选择了Nimonic 80 A作为高温耐蚀材料。结果表明，Nimonic 80 A可作为UT-3工艺设备的结构材料， ...更多信息 在所有环境中。(4)采用MOCVD方法提高了Nimonic 80 A在HBr-H介质D22介质D2 O-N介质D22介质D2中的耐高温腐蚀性能。在1073 K的UT-3条件下，用MOCVD方法在合金表面镀Ir和/或YSZ涂层，可有效地防止合金的腐蚀。(5)研究了醇盐法制备的氧化锆-二氧化硅复合膜的特性。氧化锆-二氧化硅复合膜中氧化锆含量越高，渗透率越高，达到10 μ mol/（m）D1-6 μ mol/（m）D12 μ mol/（m）D1·Pa·s）。H D22 D2对H D22 D2 O的最大分离因子和H D22 D2对HBr的最大分离因子分别为4.1和259。(6)对CVD法制备的无定形SiO2基膜进行了改性，使其具有H ↓ [2] D ↓ [22] O ↓ [2]或H ↓ [2] D ↓ [22] O ↓ [2] O的选择性，并将其用于220-560℃下H ↓ [2] D ↓ [22] O ↓ [2]-H ↓ [2] D ↓ [22] O-HBr混合物中的氢气回收。对于两级分离系统，计算氢气分离的有效能损失为最小的合理情况，其中在分离H2O D22 H2O D2之前，使用H2O D22 H2O D2 O选择性膜从H2O D22 H2O D2-H2O D22 H2O D2 O-HBr混合物中分离蒸汽。少

项目成果

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