南京大学学报（自然科学版）2017，Vol.53Issue(3)：598-609,12.DOI:10.13232/j.cnki.jnju.2017.03.024
强化气液喷射搅拌反应器传质特性研究
The study on mass transfer characteristics of the intensified gas-liquid jet stirred reactor
摘要
Abstract
Intensification of gas-liquid interfacial mass transfer is an important target for the design of high efficiency and energy saving reactors.Bubble size is one of the important hydrodynamic parameters that influence the interfacial mass transfer and the final reaction rate.In terms of the established system,the structural parameters and operating parameters of the reactor will have different effects on the bubble size,thus affecting the mass transfer effect.This study employs the method of dissolved oxygen for the determination of the volumetric mass transfer coefficient kLa,a kind of image processing method for the determination of the interfacial area a and thus the liquid side mass transfer coefficient kL is calculated.The mass transfer characteristics of the specific intensified gas-liquid jet stirred reactor are studied in this paper.And the effects of structure parameters and operating parameters on the mass transfer characteristics are further discussed,so as to better understand the mass transfer mechanism of the reactor and provide the design basis for the optimization of the reactor.关键词
气液反应器/图像处理/传质系数/相界面积Key words
gas-liquid reactor/image processing/mass transfer coefficient/interfacial area分类
信息技术与安全科学引用本文复制引用
王云鹏,田洪舟,刘承智,周政..强化气液喷射搅拌反应器传质特性研究[J].南京大学学报（自然科学版）,2017,53(3):598-609,12.基金项目
国家自然科学基金(21306078,21476105,91434101) （21306078,21476105,91434101）
