EAGER: Photo-Thermo-Chemical CO2 Reforming of CH4 by Concentrated Sunlight

EAGER：通过集中阳光对 CH4 进行光热化学 CO2 重整

• 批准号: 1548091
• 负责人: Ying Li
• 金额: $ 10万
• 依托单位: Texas A&M Engineering Experiment Station
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-08-01 至 2017-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1548091&HistoricalAwards=false
• 关键词: EAGER; Photo; Thermo; Chemical; CO2

1548091(Li)The study will explore the combined heat- and light-driven reaction of two greenhouse gases - carbon dioxide and methane - to produce carbon monoxide and hydrogen that can be used to generate fuels or chemicals while decreasing levels of greenhouse gases. The unique aspect of the work is that the heat and light will be used simultaneously via a solar collector/heater to activate the carbon dioxide and methane reaction more effectively than by either heat or light alone. The approach has potential to be used in remote or small-scale applications such as biogas generators or landfills where conventional fuel sources are not available.The reaction between methane and carbon dioxide requires significant energy input to both activate the reactants and provide the thermodynamic driving force required for the endothermic reaction. Sunlight provides a means to a favorable energy balance. By use of a properly designed solar collector, optimized in wavelength and intensity to provide both direct photon activation and secondary thermal activation, the study will address the combined effectiveness of thermal and photonic energy input to drive the carbon dioxide - methane reaction. This will be one of the first studies of its kind, and should provide important guidance into the relative effectiveness of the combined approach versus either thermal or photocatalytic approaches alone. In addition, the study will develop catalysts that are specifically designed to utilize both thermal and photon energy sources, and it will also explore the mechanism of the combined photo-thermo-catalyzed reaction.If the approach is successful, it could open the door to more catalytic reactions that could benefit from the combined thermo-photo approach. These types of approaches rely on the sun for energy, and thus present a path to a more sustainable energy future as well as a means of mitigating greenhouse gas emissions or upgrading greenhouse gases to useful products. The concept also fits well with treating gases in remote locations or from small-scale gas sources, where solar collectors and reactors can be utilized in modular form without the need for ancillary power sources.

1548091（LI）该研究将探讨两种温室气体的热和轻驱动反应 - 二氧化碳和甲烷 - 生产一氧化碳和氢，可用于产生燃料或化学物质，同时降低温室气体的水平。 工作的独特方面是，与单独的热或光单独使用，热量和光同时使用太阳能收集器/加热器更有效地激活二氧化碳和甲烷反应。 该方法有可能用于远程或小规模的应用中，例如沼气发生器或垃圾填埋场不可用。 阳光为有利的能量平衡提供了一种手段。 通过使用适当设计的太阳能收集器，在波长和强度中优化以提供直接光子激活和次级热激活，该研究将解决热和光子能量输入的合并有效性，以驱动二氧化碳 - 甲烷反应。 这将是同类研究的最早研究之一，应该为组合方法与热催化方法相对有效性提供重要的指导。 此外，该研究将开发出专门设计用于使用热能和光子能源的催化剂，它还将探索合并的光透明催化反应的机理。如果该方法成功，它可以打开更多催化反应的门，这些反应可以从组合的热球方法中受益。 这些类型的方法依靠太阳来获得能源，因此为未来的能源提供了一条途径，以及一种减轻温室气体排放或将温室气体升级为有用产品的方法。 该概念也非常适合在偏远位置或小型气源中处理气体，在这些气体中，太阳能收集器和反应堆可以以模块化形式使用而无需辅助功率来源。