SBIR Phase I: Novel Catalyst Substrate for the High and Low Temperature Water Gas Shift Reactor

SBIR第一期：用于高低温水煤气变换反应器的新型催化剂载体

• 批准号: 0060771
• 负责人: Marco Castaldi
• 金额: $ 10万
• 依托单位: Precision Combustion, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-01-01 至 2001-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0060771&HistoricalAwards=false
• 关键词: SBIR; Phase; Novel; Catalyst; Substrate

This Small Business Innovation Research (SBIR) Phase I project will develop compact Water Gas Shift Reactors (WGSR) with rapid startup and load following through the use of a novel catalyst substrate design consisting of multiple Ultra Short Channel Length (USCL), high cell density metal monoliths in series. These USCL monoliths have very high heat and mass transfer coefficients due to the absence of fully developed boundary layers; this increases bulk mass transfer on the order of 20 fold over conventional honeycomb monolith supports. The high cell density, up to 2500 cells per square inch, results in a considerably higher Geometric Surface area (GSA) per unit volume compared to honeycomb monoliths. The improved transport properties and increased GSA translates into much smaller reactor size and weight compared to pellet bed or conventional honeycomb substrates and more efficient catalyst utilization under mass transfer controlled operation, which can lead to significant cost reductions, especially when using precious metal catalyst. The very low thermal mass of the individual USCL catalyst substrate elements combined with the high heat transfer coefficient gives improved transient response and fast startup.The proposed WGSR catalyst technology is primarily intended as part of an integrated fuel processor system to produce hydrogen for Proton exchange Membrane fuel cells in automotive applications. The proposed technology provides a very high potential benefit to cost opportunity, offering significant improvements in the WGSR component of volume, weight and potentially cost, as well as provides spin-off applications to other catalytic reactors (including other fuel processor components).

该小型企业创新研究（SBIR）第一阶段项目将开发紧凑型水煤气变换反应器（WGSR），通过使用由多个超短通道长度（USCL）组成的新型催化剂基底设计，快速启动和负载，高细胞密度金属整体串联。这些USCL整料具有非常高的传热和传质系数，由于没有充分发展的边界层，这增加了大量的传质的顺序上的20倍，超过传统的蜂窝状整料支持。高孔密度（高达2500个孔/平方英寸）导致每单位体积的几何表面积（GSA）显著高于蜂窝状整料。改进的传输性能和增加的GSA转化为与丸粒床或常规蜂窝状基材相比小得多的反应器尺寸和重量以及在传质控制操作下更有效的催化剂利用率，这可以导致显著的成本降低，特别是当使用贵金属催化剂时。单个USCL催化剂基底元件的极低热质量与高传热系数相结合，提供了改进的瞬态响应和快速启动。拟议的WGSR催化剂技术主要用作集成燃料处理器系统的一部分，为汽车应用中的质子交换膜燃料电池生产氢气。所提出的技术为成本机会提供了非常高的潜在效益，在WGSR组件的体积、重量和潜在成本方面提供了显著的改进，并且为其他催化反应器（包括其他燃料处理器组件）提供了附带应用。