Investigation of Composite Facilitated Transport Membranes for Separations of Unsaturated Hydrocarbons

摘要 提案编号： CTS-9726277提案类型：研究者发起主要研究者：Richard D.贵族归属： 科罗拉多大学 该补助金通过化学和运输系统司界面，运输和分离计划的分离和纯化计划子要素授予。 主要研究者是博尔德市科罗拉多大学的理查德·诺布尔博士。 研究人员建议发展一个理解的分离机制涉及促进运输膜。 该研究的新方面是复合膜的开发，其中氟化离子交换组分存在于多孔疏水组分的孔内。 将钠和/或银离子交换到这些复合膜上，并测试烯烃与链烷烃的分离。 研究人员表征的界面传输沿着的聚合物复合材料的离子交换区域，并确定其在整体膜通量和选择性特性的作用。 分离分子量差异很小的非常相似的化学物质对化学、石油加工和精细化学品工业具有巨大的重要性。 传统的化学方法，如蒸馏，并不是很有效。 膜具有用于这种分离的前景，但要在商业上可行，必须在膜设计方面取得重大进展。 本研究解决了这些物种的分离复合膜的设计。 如果成功的话，实施将为化学品和petoleum加工行业节省大量成本。

Abstract Proposal No: CTS-9726277 Proposal Type: Investigator Initiated Principal Investigator: Richard D. Noble Affiliation: University of Colorado, Boulder This grant is awarded through the Separations and Purification Program sub-element of the Interfacial, Transport and Separations Program of the Chemical and Transport Systems Division. The principal investigator is Dr. Richard Noble at the University of Colorado, Boulder. The investigators propose to develop an understanding of the separation mechanisms involved in facilitated transport membranes. The novel aspect of the research is the development of composite membranes where a fluorinated ion-exchange component is present within the pores of a porous hydrophobic component. Sodium and/or silver are ion-exchanged onto these composite membrane and the separation of olefins from paraffin's will be tested. The investigators characterize the interfacial transport along the ion exchange region of the polymer composite and determine its role in overall membrane flux and selectivity characteristics. The separation of very similar chemical species that differ very slightly in molecular weight, is of tremendous importance to the chemical, petroleum processing and fine chemicals industries. Traditional chemical processes such as distillation are not very effective. Membranes hold promise for such separations but to be commercially feasible, significant advances in membrane design have to be made. This research addresses composite membrane design for the separation of these species. If successful, implementation would lead to significant cost savings to the chemicals and petoleum processing industries.