Analysis of a Novel Three-Phase Catalytic Reactor

新型三相催化反应器的分析

• 批准号: 9022241
• 负责人: Ramon Cerro
• 金额: $ 15.47万
• 依托单位: University of Tulsa
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-03-01 至 1994-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9022241&HistoricalAwards=false
• 关键词: Analysis; Novel; Three; Phase; Catalytic

Ceramic honeycomb monoliths were initially developed as catalyst supports for use in automotive catalytic converters. Monolithic catalyst support provides a means of contacting a gas and a liquid with a solid catalyst. This catalyst support delivers low pressure drop because of its unique geometry. High reaction rates may be obtained because of the high surface area of the catalyst and the low mass transfer resistance which can be realized when slug flow is maintained within the channels of the monolith. The proper use of such a catalyst requires uniform distribution of gas and liquid in the open cells of the monolith. This research will involve the construction and operation of a novel monolithic reactor in which a uniform gas-liquid feed is produced through the formation of a two-phase froth within the same vessel. The froth is a vehicle for the introduction of controlled volumes of gas and into the channels of the monolith in slug flow. The reactor will be evaluated for the aqueous phase oxidation of phenol over copper oxide catalyst and the results compared with data reported from a slurry reactor. Flow visualization experiments will be used to determine the hydrodynamic parameters necessary to obtain the desired slug flow within the monolith and understand the means by which the froth characteristics may be controlled. A reactor model based upon the hydrodynamics within square channels of the monolith will be developed, a model with a minimum of adjustable parameters.

陶瓷蜂窝状整体最初是作为用于汽车催化转化器的催化剂支持而开发的。 整体催化剂支持提供了一种与固体催化剂接触气体和液体的方法。 由于其独特的几何形状，该催化剂支持可提供低压下降。 由于催化剂的高表面积和低传质电阻性，可以获得高反应速率，当slug流动保持在整体通道内时，可以实现。 正确使用这种催化剂需要在整体的开放式细胞中均匀分布气体和液体。 这项研究将涉及一种新型整体反应器的构建和运行，其中通过在同一容器中形成两相泡沫来产生均匀的气体饲料。 泡沫是一种用于引入气体的受控体积的车辆，并以sl弹流中的巨石通道进入巨石的通道。 将评估反应器的苯酚在铜催化剂上的水相氧化，并与浆液反应器报道的数据相比，结果。 流量可视化实验将用于确定获得整体内所需的sl液流量所需的流体动力参数，并了解可以控制泡沫特征的均值。 将开发基于整体平方通道内的水动力学的反应堆模型，该模型将是一个最小可调参数的模型。