Investigation of Composite Facilitated Transport Membranes for Separations of Unsaturated Hydrocarbons

摘要建议编号：CTS-9726277建议类型：调查员发起首席调查员：理查德·D·高尚从属关系：科罗拉多大学，博尔德。这笔赠款是通过化学和运输系统司界面、运输和分离计划的分离和净化计划子要素授予的。首席研究员是科罗拉多大学博尔德分校的理查德·诺布尔博士。研究人员建议加深对促进传输膜所涉及的分离机制的理解。研究的新方面是复合膜的开发，其中氟化离子交换成分存在于疏水成分的多孔孔中。钠和/或银被离子交换到这些复合膜上，并将测试烯烃与石蜡的分离。研究人员表征了聚合物复合材料离子交换区域的界面传输，并确定了它在整个膜通量和选择性特性中的作用。分离分子量差别很小的非常相似的化学物种，对化工、石油加工和精细化工行业具有极其重要的意义。传统的化学过程，如蒸馏，并不是很有效。膜为这种分离提供了希望，但要想在商业上可行，必须在膜设计方面取得重大进展。本研究设计了用于分离这些物种的复合膜。如果成功实施，将为化学品和石油加工业节省大量成本。

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.