新型分段进液式旋转填充床气相压降特性研究  

Study on Gas Pressure Drop in a Novel Multi-Liquid-Inlet Rotating Packed Bed

作　　者：邢子聿 罗勇[1] 初广文[1] 邹海魁[1] 向阳[1] 陈建峰[1] 

机构地区：[1]北京化工大学教育部超重力工程研究中心,北京100029

出　　处：《高校化学工程学报》2014年第2期234-239,共6页Journal of Chemical Engineering of Chinese Universities

基　　金：国家高技术研究发展项目(2012AA063104)

摘　　要：作为一种新型过程强化设备,分段进液式旋转填充床充分利用端效应原理对液相进行有效分散和细化,进而强化混合及传递过程。今采用空气-水体系对新型分段进液式旋转填充床气相压降特性进行实验研究。考察转子转速、气体流量、液体流量对分段进液式旋转填充床气相压降的影响规律。实验研究结果表明,分段进液式旋转填充床气相压降随转子转速、气体流量的增大而增大。在低气体流量情况下,随液体流量的增大,气相压降变化不大;在高气体流量下,气相压降随着液体流量的增大而增大。同时,本研究还对转子尺寸大小与分段进液式旋转填充床相同的传统旋转填充床的压降进行了对比研究,结果表明在相同操作条件下分段进液式旋转填充床的压降与传统旋转填充床相比有明显下降。Gas pressure drop of a Multi-Liquid-Inlet rotating packed bed （MLI-RPB） was studied by usingair-water as a model system. Effects of rotational speed, gas flow-rate, and liquid flow-rate on the gas pressuredrop were investigated. Experimental results show that the gas pressure drop increases with the increase ofrotational speed and gas flow-rate. Under low gas flow-rate condition, gas pressure drop is not sensitive to thevariation of flow-rate. However, under high gas flow-rate condition, flow-rate increase can result in a higherpressure drop. In addition, gas pressure drop experiments in a traditional RPB with the same rotor size as theMLI-RPB were also studied. The results indicate that the pressure drop in the MLI-RPB is smaller under thesame operating conditions.

关 键 词：旋转填充床 过程强化 分段进液 压降 

分 类 号：TQ051[化学工程]