项目名称: 离子液体介尺度结构/界面的形成机制及调控规律
项目编号: No.91434203
项目类型: 重大研究计划
立项/批准年度: 2015
项目学科: 数理科学和化学
项目作者: 张锁江
作者单位: 中国科学院过程工程研究所
项目金额: 300万元
中文摘要: 离子液体特殊的静电-氢键协同作用及独特功能为研发资源高效清洁转化新过程提供了契机,然而对离子液体介尺度结构/界面的形成机制及调控规律认识的缺乏,导致依赖于传统“三传一反”原理的反应器/过程效率极限难以实现重大突破。另一方面,离子液体非常规介质为介尺度科学理论体系的构建提供了不同于传统分子型介质的新体系和新挑战。为此,本项目以离子液体结构/界面介尺度调控为核心,重点解决两个层次的介尺度问题:一是介于离子/分子与液滴/气泡之间的离子簇/纳微气泡;二是液滴/气泡与反应器之间的液滴群/气泡群,揭示离子液体介尺度结构的形成机理和稳定性机制,发展跨层次介尺度关联的数理模型和模拟方法,建立介尺度结构/界面原位观察和动态分析表征平台,获得介尺度结构对流动-传递-反应耦合过程的影响规律,形成基于离子液体介尺度调控的反应器及过程强化理论和方法体系,为煤炭、油气等资源转化利用的工艺创新和技术突破提供科学基础。
中文关键词: 离子液体;介尺度;结构;界面;过程强化
英文摘要: Ionic liquids have been studied extensively as green solvents due to their unique properties and have shown great potentials in industries. However, undisclosed formation mechanism of meso-scale structure and interface of ionic liquid system, as well as the flow-transfer-reaction properties, leads to the possible failures and difficulties of new process and reactor design. Thus, two meso-scale structures are proposed in this project, one is ionic clusters/nano-micro bubbles between ions/molecules and liquid drops/bulk bubbles; and the other is liquid drop aggregates/bubble aggregates between liquid drops/bulk bubbles and reactors. By resolving the key scientific problems of the formation and stability mechanism of ionic clusters/liquid drop aggregates, meso-scale structures and coupling mechanism of nano-micro bubbles/bubble aggregates, and the influence of meso-structure on the fluid dynamic and transfer-reaction properties, the project intends to develop the cross-scale mathematical model and algorithm, and establish an in-situ experiment research platform for meso-science of ionic liquid system. The successful realization of this project will provide scientific bases for the design of cleaner processes of resources utilization.
英文关键词: Ionic liquids;Meso-scale;Structure;Interface;Process intensification