STTR Phase I: Magnetically Controlled Microwave Powered Fluidized Bed Reactor

这个小企业技术转让（STTR）第一阶段项目提出了一个磁控和微波动力流化床反应器的发展，结合三个主要创新：[1]流化介质的高能效的基于波导的微波传输和辐射，[2]独特的自我-利用局部磁场梯度和磁化率对限制的温度依赖性调节流化床温度在加热区域内只有相对较冷的颗粒，以及[3]一种新型的微波兼容温度测量系统。 的温度依赖性 微波加热的优点已经应用于大量的化学合成和相关的单元操作。然而，迄今为止，大多数工作都是使用相对低效的多模腔进行的，温度控制较差。该创新将流化床反应器（FBR）的优异传质效率与使用基于高性能波导的微波辐射系统可实现的极其优异的上级传热效率相结合。预期效益包括：1）由改进的热效率导致的能量节省，2）由于显著改进的加热速率而更快的反应器启动，3）改进的温度均匀性，4）改进的反应器操作温度控制，5）新的磁控颗粒的开发，和6）对流化床反应器中的传热特性的更多理解。最佳传热和传质特性与新型温度控制材料的成功耦合可用于提高反应器效率并降低成本。最有可能的是小规模的实验室装置将成为第一个商业产品

This Small Business Technology Transfer (STTR) Phase I project proposes development of a magnetically controlled and microwave powered fluidized bed reactor, incorporating three primary innovations: [1] highly energy efficient waveguide-based microwave transmission and irradiation of fluidized media, [2] unique self-regulation of fluidized bed temperature using a localized magnetic field gradient and the temperature dependence of magnetic susceptibility to confine only relatively cold particles within the heating zone, and [3] a novel microwave-compatible temperature measurement system. The temperature dependence of the benefits of microwave heating have been applied to a vast array of chemical syntheses and related unit operations. However, most work to date has been conducted using relatively inefficient multi-mode cavities with poor temperature control. The innovation couples the excellent mass transfer efficiency of Fluidized Bed Reactors (FBRs) with the vastly superior heat transfer efficiencies achievable using high performance waveguide-based microwave irradiation systems. Anticipated benefits include: 1) energy savings resulting from improved thermal efficiency, 2) much faster reactor start-up due to substantially improved heating rates, 3) improved temperature uniformity, 4) improved control of reactor operating temperature, 5) development of novel magnetically controlled particles, and 6) greater understanding of the heat transfer characteristics in fluidized bed reactors. The successful coupling of optimal heat transfer and mass transfer characteristics with novel temperature control materials can be utilized to improve reactor efficiency and reduce costs. It is most probable that small-scale laboratory units will be the first commercial product