Hydrogen from Ethanol via Integrated Ceramic Microchannel Membrane Networks

通过集成陶瓷微通道膜网络从乙醇中制氢

• 批准号: 0730820
• 负责人: Benjamin Wilhite
• 金额: $ 23.99万
• 依托单位: University of Connecticut
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0730820&HistoricalAwards=false
• 关键词: Hydrogen; Ethanol; via; Integrated; Ceramic

PROPOSAL NUMBER: 0730820PRINCIPAL INVESTIGATOR: Benjamin Wilhite INSTITUTION: University of ConnecticutPROPOSAL TITLE: Hydrogen from Ethanol via Integrated Ceramic Microchannel Membrane NetworksThe objective of this project is to investigate coupling catalytic ethanol steam reforming membranes and catalytic water-gas-shift membranes, within an integrated network of ceramic microchannels, each employing composite palladium-catalyst membranes. Use of micron-scale hydraulic diameters greatly enhances membrane surface areas while simultaneously removing intra-fluid mass transport limitations. Integration of multiple separate membrane processes within a single unit allows further improvements in process intensification, portability, scalability and energy density. The resulting membrane device will be capable of processing ethanol-water mixtures and delivering only pure hydrogen. The proposed research provides fundamental understanding of interactions between multiple integrated separations processes. Gas purification studies will be performed for multiple low- and high-temperature materials. Coupling of catalytic reforming of ethanol to hydrogen with hydrogen purification enables investigation of the interplay between reaction and purification and corresponding surface and transport mechanisms for high-purity hydrogen generation. The broader impact of the proposed research is the introduction of a new class of integrated ceramic membrane microchannel networks, capable of allowing multiple separate membrane processes to interact and enhance each other within a single structure. These membrane microchannel networks combine advantages of micromachining and ceramics extrusion while removing respective barriers to purification and coupled generation with purification, system complexity and cost. By applying the experimental system to hydrogen extraction for fuel-cell systems, the research aims to contribute to the development of alternative energy technologies and hydrogen energy infrastucture. This project focuses on efforts to improve utilization of both microtechnology and ceramics processing in meeting future energy needs to improve reactor efficiency, portability and marketability. A modified version of the described experimental system will be employed for development of classroom and laboratory-based learning modules for teaching students about separations principles and fundamentals. This effort lays the groundwork for future development of membranes integrating desulfurization with steam reforming and water-gas-shift. Thus, the proposed research will contribute not only to scientific understanding of transport issues in integrated membrane systems, but also to the continued development of a clean, emission-free, renewable energy future.

提案编号：0730820主要研究员：Benjamin Wilhite 机构：康涅狄格大学提案名称：通过集成陶瓷微通道膜网络从乙醇中制氢该项目的目的是研究集成网络内催化乙醇蒸汽重整膜和催化水煤气变换膜的耦合陶瓷微通道，每个通道均采用复合钯催化剂膜。使用微米级水力直径极大地增加了膜表面积，同时消除了流体内质量传输的限制。将多个独立的膜工艺集成在一个单元中可以进一步改进工艺强化、便携性、可扩展性和能量密度。由此产生的膜装置将能够处理乙醇-水混合物并仅提供纯氢气。拟议的研究提供了对多个集成分离过程之间相互作用的基本理解。 将对多种低温和高温材料进行气体净化研究。 将乙醇催化重整制氢与氢气纯化结合起来，可以研究反​​应和纯化之间的相互作用以及相应的表面和传输机制，以产生高纯度氢气。该研究的更广泛影响是引入了新型集成陶瓷膜微通道网络，能够允许多个单独的膜过程在单个结构内相互作用并相互增强。这些膜微通道网络结合了微机械加工和陶瓷挤出的优点，同时消除了各自的纯化障碍以及与纯化、系统复杂性和成本耦合的生成。通过将该实验系统应用于燃料电池系统的氢气提取，该研究旨在为替代能源技术和氢能源基础设施的发展做出贡献。该项目的重点是努力提高微技术和陶瓷加工的利用率，以满足未来的能源需求，从而提高反应器效率、便携性和适销性。所述实验系统的修改版本将用于开发基于课堂和实验室的学习模块，以教授学生分离原理和基础知识。 这项工作为未来发展脱硫与蒸汽重整和水煤气变换相结合的膜奠定了基础。因此，拟议的研究不仅有助于科学理解集成膜系统中的传输问题，而且有助于清洁、无排放、可再生能源未来的持续发展。