微通道非均相反应器数量放大效应与操作稳定性的研究

项目名称： 微通道非均相反应器数量放大效应与操作稳定性的研究

项目编号： No.21276180

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 化学工业

项目作者： 辛峰

作者单位： 天津大学

项目金额： 82万元

中文摘要： 化工过程的集成与强化是当今学术和企业界的关注点。微反应器以其高度集成及强化传递和反应的优势，成为反应工程未来的发展方向。但微反应器数量放大的基础研究尚待完善，急需解决制约其在非均相体系推广应用面临的非均匀性等问题。本课题以平行微通道内气-液和液-液两相流分布的均匀性和稳定性为研究目标，以两类微通道结构为研究对象，借助非接触式光测量和接触式微电极检测的实验方法，记录每个微通道内流体的流型和分散状态，以及混合和反应的数据，研究平行微通道中流型和相分散尺寸与反应器结构和操作条件的关系。采用随机微分方程和微流控的理论，建立描述平行微通道反应器非均匀分布统计规律的数学模型，量化微通道非均相反应器的数量放大效应，及对典型反应的影响规律。旨在通过新的实验和模型化方法，深入研究微通道反应器的数量放大过程，解决放大效应和操作稳定性的关键科学问题。其成果将丰富反应工程领域中微反应器的模型化设计理论和研究方法。

中文关键词： 微通道反应器；数量放大；非均相；模型；操作稳定性

英文摘要： Integration and intensification of chemical processes have been seriously concerned by scholars and enterprisers. The microreactor will be the future trend in reaction engineering because of its highly integrated structure and effectively intensifying transport and reaction. But the fundamental research on numbering up should be improved by now to solve the key issues in commercial application of microreaction technology, such as non-uniformity and operating stability of parallel microchannels, whose performances in multiphase flow and reaction of gas-liquid and liquid -liquid will be the aim of my project. The fluid flow and reaction in two kinds of microchannel frames will be studied with combined the measurements of non contacted optical instrument and contacted microelectrode for recording the flow patterns and dispersion statuses of both phases, as well as the degree of mixing and extent of reaction in each and every microchannel, which will be used to disclose the relationship of flow pattern and slug size with initial profile of fluids and operation condition. Based on the theories of the stochastic differential equation and microfluidics, a model will be established to describe the non-unformed distribution in parallel microchannels and quantify the numbering up effect of heterogeneous microreactor for b

英文关键词： microchannel reactor；numbering up；multiphase；model；operating stability