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).

这项小型企业创新研究（SBIR）I期项目将通过使用新型的Catalyst底物设计来开发紧凑型水偏移反应器（WGSR），其快速启动和负载随着多个超短通道长度（USCL），高细胞密度金属整体串联组成。由于没有完全发达的边界层，这些USCL巨石具有很高的热量和传质系数。这增加了在传统的蜂窝巨石支架上的20倍的订单上的散装传质。与蜂蜜巨石相比，高细胞密度每平方英寸高达2500个细胞每平方英寸，每单位体积的几何表面积（GSA）更高。与颗粒床或常规的蜂窝基板相比，改善的运输特性和增加的GSA转化为小得多的反应堆尺寸和重量，以及在传质控制操作下更有效的催化剂利用率，这可能会导致大量成本降低，尤其是在使用贵金属催化剂时。单个USCL催化剂底物元件的热量非常低，结合了高传热系数可改善瞬态响应和快速启动。拟议的WGSR催化剂技术主要旨在作为集成燃料加工系统的一部分，以生产汽车应用中Proton Membrane燃料电池的氢气。提出的技术为成本机会提供了很高的潜在好处，从而为WGSR组件，体重和潜在成本提供了重大改进，并为其他催化反应器（包括其他燃料处理器组件）提供了衍生应用。