文献类型：期刊文献

中文题名：用喷动床对不均匀浸渍载体催化剂的干燥技术

英文题名：Application of Spouted Bed in the Drying Technique of Supported Catalyst with Non-Uniform Impregnation

作者：罗长根[1];许志美[1];顾其威[1]

机构：[1]华东理工大学联合化学反应工程研究所

年份：1994

卷号：20

期号：5

起止页码：585

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;国家哲学社会科学学术期刊数据库;Scopus;CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：干燥;喷动床;催化剂

外文关键词：drying;spouted bed;catalyst;drying kinetic model

摘要：测定了浸渍催化剂在低床层喷动干燥器内不同床高下气达和压降的关系，建立了恒速及降速阶段的干燥动力学模型。经和烘箱及带式干燥器对比，证明低床层喷动床具有快速、均匀的干燥性能及表面脱粉作用，并可抑制干燥对浸淆法制各的催化剂活性分布的影响。
The hydrodynamics and drying behaviors of impregnated catalysts in a spoutedbed were investigated·Relation between bed pressure drop and gas velocity under differentbed heights was determined and the rapid circulation of pellets in this spouted bed can be ob-served through a glass sectional column。 The drying kinetic models for both constant andfalling rate period have been proposed.The spouted bed drying behaviors-fast and uniform,are much better than other two ordinary driers.With proper operating conditions dust accu-mulated on pellets can be effectively removed. Experimental results show that shallow spouted bed drier can effectively depress the migration of active ingredients in supported catalystsprepared by nonuniform impregnation during drying process.