DMREF: Combinatorial Methods to Enable Rapid Prototyping of Pervaporation Membranes for Bio-Alcohol Recovery

DMREF：用于生物酒精回收的渗透汽化膜快速原型设计的组合方法

• 批准号: 1335082
• 负责人: Ronald Hedden
• 金额: $ 63.99万
• 依托单位: Texas Tech University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2017-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1335082&HistoricalAwards=false
• 关键词: DMREF; Combinatorial; Methods; Enable; Rapid

This Designing Materials to Revolutionize and Engineer our Future (DMREF) grant provides funding for a synergistic program of combinatorial experiments, molecular simulations, and theoretical modeling aimed at making advances in the design of pervaporation membrane materials. Pervaporation is an energy-friendly process for separation of liquid mixtures that works by preferentially transporting one of the liquid components across a selective membrane into the vapor phase on the other side. Molecular insights regarding structure-function relationships in membrane materials will be obtained by studying water-alcohol separation as the model application. The work will focus on crosslinked polyacrylate copolymer membranes that offer a high degree of tunability in chemical composition compared to traditional silicone-based membranes. High-throughput experimental screening methods consisting of matrix-based sample preparation and testing of membrane properties will be combined with molecular simulations of water and alcohol diffusion rates to quantify membrane performance. Through data-driven validation, a novel theoretical framework for membrane performance will be developed, providing predictive capabilities for rapid design of pervaporation membranes for separation applications. Pervaporation provides a cost effective alternative to the traditional energy-intensive, multi-stage distillation processes that are used for the purification of biofuels and fuel additives. This research could significantly reduce the production costs of fuels derived from renewable resources. The rapid prototyping methods to be developed will also be applicable to the design of materials for other important pervaporation applications such as desalination of water, dehydration of fuels, and removal of organics from wastewater streams. In addition to these societal benefits, the project will also have broad educational benefits through K-12 outreach activities, training of undergraduate and graduate researchers from diverse backgrounds, as well as database development for public dissemination of research findings.

这项“设计材料以彻底改变和设计我们的未来”(DMREF) 赠款为组合实验、分子模拟和理论建模的协同计划提供资金，旨在推动渗透汽化膜材料的设计取得进展。 渗透蒸发是一种用于分离液体混合物的节能过程，其工作原理是优先将一种液体成分穿过选择性膜进入另一侧的气相。 通过研究水-醇分离作为模型应用，可以获得有关膜材料结构-功能关系的分子见解。 这项工作将重点关注交联聚丙烯酸酯共聚物膜，与传统的有机硅膜相比，该膜在化学成分上具有高度的可调性。 高通量实验筛选方法包括基于基质的样品制备和膜性能测试，将与水和酒精扩散速率的分子模拟相结合，以量化膜性能。 通过数据驱动的验证，将开发出一种新颖的膜性能理论框架，为分离应用的渗透蒸发膜的快速设计提供预测能力。 渗透蒸发为用于纯化生物燃料和燃料添加剂的传统能源密集型多级蒸馏工艺提供了一种经济高效的替代方案。这项研究可以显着降低可再生资源燃料的生产成本。 待开发的快速原型方法也将适用于其他重要渗透蒸发应用的材料设计，例如海水淡化、燃料脱水和废水流中有机物的去除。 除了这些社会效益外，该项目还将通过 K-12 外展活动、培训来自不同背景的本科生和研究生研究人员以及开发用于公开传播研究成果的数据库来产生广泛的教育效益。

项目成果

Combinatorial Methodology for Screening Selectivity in Polymeric Pervaporation Membranes

聚合物渗透蒸发膜选择性筛选的组合方法

• DOI: 10.1021/acscombsci.5b00006
• 发表时间: 2015
• 期刊: ACS Combinatorial Science
• 作者: Godbole, Rutvik V.;Ma, Lan;Doerfert, Michael D.;Williams, Porsche;Hedden, Ronald C.
• 通讯作者: Hedden, Ronald C.