摘要
以CO_2—NaOH为介质,研究了填料结构、超重力因子、液体流量和气体流量等对两种多孔板错流旋转床有效比表面积的影响规律。结果表明,不锈钢多孔波纹板的有效比表面积大于聚丙烯多孔板,不锈钢多孔波纹板填料利用周期性变化的波纹表面不仅可以有效利用填料自身的比表面积,而且可起到良好的雾化扩展比表面积的作用,使有效比表面积增大至2.66倍。对实验数据进行回归得出了两种填料结构有效比表面积的关联式,根据关联式计算的有效比表面值与实验值吻合较好。
Effects of different packing structure, liquid flow rate, high gravity factor and gas flow rate on the effective gas-liquid interfacial areas of cross-flow rotating packed beds with stainless steel protruded ripple plate packing （packing A） and polypropylene protruded plate packing （packing B） with the CO2-NaOH system were investigated. The experimental results showed that the effective gas-liquid interfacial area of stainless steel protruded ripple plate packing was bigger than that of the polypropylene protruded plate packing. By its periodic changeable ripple area, the stainless steel protruded ripple plate packing could increase its effective gas-liquid interracial area, because the periodic changeable ripple area not only made full use of its interfacial area, but also expanded gas-liquid contact area. The correlative expressions of the effective interfacial area of packing A and packing B were obtained and the calculated values agreed with the experimental values well.
出处
《化学反应工程与工艺》
EI
CAS
CSCD
北大核心
2007年第4期296-301,369,共7页
Chemical Reaction Engineering and Technology
基金
山西省自然基金(20051015)
关键词
旋转填料床
有效比表面积
填料结构
rotating packed bed
effective interracial area
packing sructure
