摘要：The experiments, about entrainment performance, as well as mass transfer efficiency, of multidowncomer (MD) sieve tray were investigated in a 1200-min-diameter tower with air/water system. The results indicate that the entrainment rate of MD sieve tray is lower and its behavior with increased liquid rate contradicts that of the conventional sieve tray. According to the nonmonotone variation phenomenon of entrainment at various liquid loads given by Lu and Kister, we developed the Double-Transition Point Theory to interpret the entrainment features under different contact regimes and the entrainment mechanism of MD sieve tray. By comparing the correspondence match of entrainment, pressure drop, and efficiency curves, we discussed the operating upper limit and mass-transfer efficiency. Therefore, based on the formulas of Yell's and Hunt's correlations, we developed the model for MD sieve tray where a semitheoretical derivation on entrained droplets in the froth regime was made.

关键字：PHYSICAL-PROPERTIES EFFICIENCY CAPACITY REGIME COLUMN

ISSN号：0888-5885

卷、期、页：卷: 56 期: 23 页: 6755-6763

发表日期：2017-06-14

期刊分区（SCI为中科院分区）：二区

收录情况：SCI（科学引文索引印刷版）,ESI（基本科学指标数据库）,SCIE（科学引文索引网络版）

发表期刊名称：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

参与作者：郭华民

通讯作者：贺煜

第一作者：曹睿,刘艳升

论文类型：期刊论文

论文概要：曹睿,贺煜,郭华民,刘艳升，Entrainment Performance and Model of Multidowncomer Sieve Trays，INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH，2017，卷: 56 期: 23 页: 6755-6763

论文题目：Entrainment Performance and Model of Multidowncomer Sieve Trays