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| 1 | 微反应器计算流体力学与离散元建模及调控显示文摘为了提高微反应器内部流场均匀性,抑制固相颗粒团聚,提出超声波耦合流场强化调控方法.基于计算流体力学与离散元耦合(CFD-DEM)方法,建立微反应器流体动力学模型,得到微反应器流道的多相流场分布与颗粒运动规律.对可实现k-ε湍流模型源项进行修正,得到微型反应器在超声波激振作用下的颗粒碰撞冲击效应与内部流场非线性分布特征.结合分形方法,对流道中的颗粒群混沌态分布进行定量分析.以T形汇流反应器为例,开展数值仿真研究.结果表明,超声波耦合流场强化可以提高反应器内的流场分布均匀性,对离散颗粒团聚进行有效的抑制. | 郑帅 谭大鹏 李霖 朱吟龙 | 2019 | 浙江大学学报(工学版)2019，53，7： | 3 |
| 2 | Microinterface intensification in hydrogenation and air oxidation processes显示文摘Hydrogenations and air oxidations usually have low apparent reaction rate,generally controlled by mass transfer rate,and widely exist in the modern chemical manufacturing process.The key to increase the mass transfer rate is the reduction of the liquid film resistance 1/kLa.In this work,the original concept of microinterface intensification for mass transfer and then for these reactions has been proposed.We derived the regulation model and set up the mathematical calculation method of micron-scale gas-liquid interface structure on mass transfer and reaction,designed the mechanical energy exchange device that can produce gas-liquid microinterface system on a large scale,and established the OMIS system which is able on line to measure the diameter and distribution of millions of microbubbles,interface area a and mass transfer film thicknessδM,as well as developed a series of microinterface intensified reactor systems(MIRs)for the applications of hydrogenation and air oxidation processes.It is believed that this research will provide an up-to-date development for the intensification of hydrogenation and air oxidation reactions. | Hongliang Qian Hongzhou Tian Guoqiang Yang Gaodong Yang Lei Li Feng Zhang Zheng Zhou Weihua Huang Yufu Chen Zhibing Zhang | 2022 | Chinese Journal of Chemical Engineering2022，，10： | 2 |
| 3 | Process intensification in vapor–liquid mass transfer: The state-of-the-art显示文摘The concept of process intensification(PI) has absorbed diverse definitions and stays true to the mission—'do more with less', which is an approach purposed by chemical engineers to solve the global energy & environment problems. To date, the focus of PI has been on processes mainly involving vapor/liquid systems. Based on the fundamental principles of vapor–liquid mass transfer process like distillation and absorption, there are three strategies to intensify interphase mass transfer: enhancing the overall driving force, improving the mass transfer coefficient and enlarging the vapor–liquid interfacial area. More specifically, this article herein provides an overview of various technologies to strengthen the vapor–liquid mass transfer, including application of external fields, addition of third substances, micro-chemical technology and usage of solid foam, with the objective to contribute to the future developments and potential applications of PI in scientific research and industrial sectors. | Hong Li Chuanhui Wu Zhiqiang Hao Xingang Li Xin Gao | 2019 | Chinese Journal of Chemical Engineering2019，27，6： | 1 |
| 4 | 微通道内气液流动与传质特性的研究进展显示文摘微化工过程具有高效、安全、节能、体积小和高传热传质率等方面的固有优势,其在气液非均相传质与反应强化领域表现出巨大的发展潜力。本文系统论述了微通道内气液两相流动与传质特性的研究现状,总结了微通道内气液两相流型及分布情况,从操作条件和微通道设计等方面分析了影响两相流型的关键因素,并讨论了多种因素对传质与过程强化的影响方式,对目前研究的微通道内气液两相的传质模型进行了总结分类。以气液两相在主要流动通道的流动形态为基准,分类介绍了多种气液两相微反应器的最新研究进展。文中指出进一步探究微化工过程强化方式以及开发新型气液微通道反应器仍是未来微化工研究的重点发展方向。 | 袁谅 从海峰 李鑫钢 | 2024 | 化工进展2024，43，1： | 0 |
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