バイオマス改質と水素生成をともなう低温廃熱回収

低温废热回收与生物质重整和制氢

• 批准号: 15J07587
• 负责人: 朱 遠征
• 金额: $ 1.22万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2015
• 资助国家: 日本
• 起止时间: 2015-04-24 至 2017-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15J07587/
• 关键词: cerium oxide; oxygen storage capacity; catalyst; nanoparticles

Highly Cr-substituted CeO2 nano-catalysts with exposing {111} facets were synthesized using a flow-type reactor. The flow-type reactor realized rapid heating and mixing of reactant solutions, which enabled the synthesis of highly Cr-substituted CeO2 up to 38 mol%. The Cr-substituted CeO2 nano-catalysts showed extremely high oxygen storage capacity. By using the produced CeO2 nano-catalysts, hydrothermal bitumen cracking was performed at 300 and 350 ℃. Bitumen was successfully converted to lighter components including asphaltene without coke formation. Surprisingly, hydrogen was evolved during conversion and the amount of hydrogen gas increased with the amount of Cr substitution. These results clearly suggest that Cr-substituted CeO2 can be used for hydrogen generation from organic waste.

采用流动反应器合成了具有暴露{111}晶面的高cr取代CeO2纳米催化剂。流动式反应器实现了反应物溶液的快速加热和混合，可合成高达38 mol%的高cr取代CeO2。cr取代的CeO2纳米催化剂表现出极高的储氧能力。采用制备的CeO2纳米催化剂，在300℃和350℃条件下对沥青进行水热裂解。沥青被成功地转化为更轻的成分，包括沥青烯，而没有形成焦炭。令人惊讶的是，在转化过程中产生了氢气，氢气的量随着Cr取代量的增加而增加。这些结果清楚地表明，cr取代的CeO2可以用于有机废物的制氢。

项目成果

Shape-Controlled Synthesis of Cr Doped CeO2 Nanoparticles in Sub- and Supercritical Water

亚临界和超临界水中形状控制合成 Cr 掺杂 CeO2 纳米颗粒

• 发表时间: 2015
• 作者: Yuanzheng Zhu;Seiichi Takami;Daisuke Hojo;Nobuaki Aoki;Tsutomu Aida;Tadafumi Adschiri
• 通讯作者: Tadafumi Adschiri

Supercritical hydrothermal synthesis of crystal-face and shape controlled Cr-doped CeO2 nanoparticles with high catalytic activity

超临界水热合成高催化活性晶面和形状可控的Cr掺杂CeO2纳米粒子

• 发表时间: 2015
• 作者: Yuanzheng Zhu;Seiichi Takami;Gimyeong Seong;Daisuke Hojo;Nobuaki Aoki;Tadafumi Adschiri
• 通讯作者: Tadafumi Adschiri

Supercritical Hydrothermal Synthesis of Facet-Controlled Cr-doped CeO2 Nanoparticles

面控Cr掺杂CeO2纳米颗粒的超临界水热合成

• 发表时间: 2015
• 作者: Yuanzheng Zhu;Seiichi Takami;Gimyeong Seong;Daisuke Hojo;Nobuaki Aoki;Tadafumi Adschiri
• 通讯作者: Tadafumi Adschiri

Green solvent for green materials: a supercritical hydrothermal method and shape-controlled synthesis of Cr-doped CeO2 nanoparticles

绿色材料的绿色溶剂：Cr掺杂CeO2纳米颗粒的超临界水热法和形状控制合成

• DOI: 10.1098/rsta.2015.0012
• 发表时间: 2015
• 期刊: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
• 作者: Yuanzheng Zhu;Seiichi Takami;Gimyeong Seong;Mehdi Dejhosseini;Muhammad Zamir Hossain;Takio Noguchi;Daisuke Hojo;Nobuaki Aoki;Tsutomu Aida;Tadafumi Adschiri
• 通讯作者: Tadafumi Adschiri