SGER: Nanoporous Membranes Produces via the Partial Pyrolysis of Silicone Rubbers

摘要 提案编号：9815483 提案类型： SGER 主要研究者： 玛丽·雷扎克 所属单位： 格鲁吉亚理工学院 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。校长 调查员是格鲁吉亚理工学院的玛丽·雷扎克博士。 本研究旨在通过硅橡胶的部分热解来开发纳米多孔膜。 这些膜通过被称为“选择性表面流”（SSF）的概念来操作，其中通过在孔表面上选择性吸附氢，随后在毛细孔中冷凝，重质烃的运输比氢的运输更容易。这些SSF膜的优点是在进料压力下实现氢气回收。该研究的创新方面是膜的孔结构可以通过硅氧烷侧链的化学改性来控制的概念，使用一系列具有不同吸电子特性的取代基。 这项研究是高度探索性的工作。如果成功，这项工作将导致纳米多孔膜的发展， 承受高压的能力下降，并且可以加工成高表面积的模块，例如中空纤维模块。 这样的膜能够承受有效的氢-烃分离所需的高压、连续操作。

Abstract Proposal No: 9815483 Proposal Type: SGER Principal Investigator: Mary Rezac Affiliation: Georgia Institute of Technology 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. Mary Rezac at the Georgia Institute of Technology. The research is directed towards the development of nanoporous membranes via the partial pyrolysis of silicone rubbers. These membranes operate through a concept known as "selective surface flow" (SSF) where transport of heavy hydrocarbons is facilitated over that of hydrogen, by the selective adsorption of hydrogen on the pore surface followed by condensation in the capillary pores. The advantage of these SSF membranes is the fact that the hydrogen recovery is achieved at feed pressure. The innovative aspect of the research is the concept that the pore structure of the membrane can be controlled by chemical modifications of the siloxane side chains, using a series of substituents with varying electron withdrawing properties. This research represents highly exploratory work. If successful, the work will lead to the development of nanoporous membranes that have the ability to withstand high pressure drops and can be processed into high surface area modules such as hollow fiber modules. Such membranes may be able to withstand the high pressure, continuous operation required for efficient hydrogen-hydrocarbon separations.