四叶形催化载体材料的流体力学性质  

Hydrodynamic Properties of Quadrolobe Catalyst Supports

作　　者：方向晨[1] 程振民[1] 穆斌[1] 贾金明[1] 沈建国[1] 曾榕辉[2] 韩保平[2] 

机构地区：[1]华东理工大学反应工程国家重点实验室,上海200237 [2]抚顺石油化工研究院,辽宁抚顺113001

出　　处：《高校化学工程学报》2006年第2期292-295,共4页Journal of Chemical Engineering of Chinese Universities

基　　金：中国石化股份有限公司应用研究项目(101019);教育部新世纪优秀人才支持计划项目(NCET-04-0412)。

摘　　要：测定了直径2.1mm四叶形结构催化剂的物理性质,得到床层空隙率为0.52,床层比表面积为1141m2?m?3。在纯气相下,四叶形颗粒床层压降与直径5.79mm的球形颗粒相当;在纯液相下,床层饱和度与直径2.7mm的球形颗粒相当;在气液逆流状态下,床层的液泛速度与尺寸为6mm×4mm×4mm(外径×内径×高)、床层空隙率为0.65的短拉西环相当。以上数据表明,新开发的四叶形催化剂是一种流体力学性质优异的新型催化材料,适用于柴油逆流加氢深度脱硫等新工艺过程。Physical properties of the quadrolobe shaped catalysts with diameter of 2.1 mm were measured. The void fraction of the bed is 0.52, and the specific surface area of the bed is 1141m^2·m^-3. When only the gas phase is flowing, the pressure drop of the bed mentioned above is equivalent to a bed packed with spheres of 5.79 mm in diameter, while when only the liquid phase is flowing, the saturation of the bed is equivalent to a bed packed with spheres of 2.7 mm in diameter. Under gas-liquid countercurrent flow condition, the flooding velocities of the two phases are equivalent to a bed packed with Raschig rings of 6mm × 4mm × 4 mm （outside diameter × inside diameter × length） in geometry, The above data show that the quadrolobe catalyst support is a novel catalytic material with extraordinary hydrodynamic properties, which could be applied to deep desulfurization of diesel fuel operated under countercurrent flow or to those processes with similar characteristics.

关 键 词：四叶形载体 异型结构催化材料 流体力学性质 液泛 逆流操作 

分 类 号：TQ021.1[化学工程]