Collaborative Research: Reverse-Selective Membrane Materials for the Purification of Hydrogen and Other Light Gases
合作研究:用于纯化氢气和其他轻质气体的反向选择性膜材料
基本信息
- 批准号:0515425
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2005
- 资助国家:美国
- 起止时间:2005-10-01 至 2009-05-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
AbstractProposal Title: Reverse-selective Membrane Materials for the Purification of Hydrogen and Other Light GasesProposal Number: CTS-0515425Principal Investigator: Benny FreemanInstitution: University of Texas at AustinThe objective of this collaborative proposal is the formulation and optimization of a new generation of gas separation membrane materials designed for the selective permeation of larger, polar or quadrupolar species over smaller, non-polar species. The membrane materials in this work are rubbery, crosslinked copolymer networks specifically formulated to achieve high solubility selectivity for larger, polar or quadrupolar gas molecules over smaller, non-polar molecules while simultaneously minimizing size sieving. The networks are prepared via copolymerization of polyethylene glycol (PEG)-rich acrylate and diacrylate monomers. Preliminary permeation studies on non-optimized membranes have demonstrated that preferential transport of carbon dioxide over hydrogen can be accomplished with PEG-based networks, with the highest combination of carbon dioxide permeability and selectivity yet reported for non-facilitated transport membranes. These pilot studies also indicate that the gas separation performance is sensitive to the details of the network structure, with variations in crosslink density and backbone pendant groups leading to significant changes in both permeability and overall selectivity. To fully realize the potential of this new class of membranes, a systematic experimental study is proposed based on the preparation and characterization of networks with controlled variations in structure and crosslink density. The membranes will be strategically designed to optimize their performance both in terms of separation properties and overall mechanical integrity. Keys to understanding the relationship between network structure and gas separation properties are the polymer chain dynamics and local free volume, as related to the diffusivity selectivity of the membranes. The project will lead to enhanced fundamental understanding as to the correlation of chain dynamics and morphology with gas separation performance for rubbery networks, and the emergence of molecular-based design paradigms for this industrially-relevant class of membrane materials. In addition to the fundamental materials and membrane science goals associated with the proposal, broader impacts include the potential application of these new membranes as replacements for industrial gas separation processes based on cumbersome, energy-intensive methods such as absorption. This work will lead to important educational benefits through graduate student training. Further, the planned industrial liaison with Air Liquide and interaction with CSIRO (Australia) will provide direct input regarding industrial goals and priorities for gas separation membranes, and expanded resources for the characterization of these materials. This work could lead to a new class of membranes for industrially important gas separations.
建议标题:用于氢和其他轻质气体净化的反向选择膜材料建议编号:CTS-0515425首席研究员:本尼·弗里曼研究所:得克萨斯大学奥斯汀分校这项合作提案的目标是制定和优化新一代气体分离膜材料,设计用于较大、极性或四极物种对较小、非极性物种的选择性渗透。这项工作中的膜材料是橡胶的、交联的共聚网络,专为实现较大的、极性或四极气体分子对较小的非极性分子的高溶解度选择性,同时最大限度地减少尺寸筛分而设计。该网络是由富含聚乙二醇酯的丙烯酸酯和双丙烯酸酯单体共聚而成的。在非优化膜上的初步渗透研究表明,基于聚乙二醇基的网络可以实现二氧化碳在氢气上的优先传输,迄今报道的非促进传输膜的二氧化碳渗透性和选择性的最高组合。这些先导研究还表明,气体分离性能对网络结构的细节很敏感,交联链密度和主干侧基的变化导致渗透性和总体选择性的显著变化。为了充分发挥这类新型膜的潜力,在制备和表征结构和交联密度可控变化的网络结构的基础上,提出了一项系统的实验研究。这些膜将经过战略性设计,以优化其分离特性和整体机械完整性方面的性能。了解网络结构和气体分离性能之间关系的关键是聚合物链动力学和局部自由体积,它们与膜的扩散系数和选择性有关。该项目将加强对橡胶网络的链动力学和形态与气体分离性能之间的关系的基本了解,并为这类工业相关的膜材料出现基于分子的设计范例。除了与该提案相关的基础材料和膜科学目标外,更广泛的影响还包括这些新膜作为基于吸收等繁琐、能源密集型方法的工业气体分离过程的替代品的潜在应用。这项工作将通过研究生培养产生重要的教育效益。此外,计划中的与液化空气公司的行业联系和与CSIRO(澳大利亚)的互动将提供关于气体分离膜的行业目标和优先事项的直接投入,并为这些材料的表征提供更多资源。这项工作可能导致一类新的膜用于工业上重要的气体分离。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Benny Freeman其他文献
Moisture-driven COsub2/sub pump for direct air capture
用于直接空气捕获的水分驱动二氧化碳泵
- DOI:
10.1016/j.memsci.2023.121954 - 发表时间:
2023-11-05 - 期刊:
- 影响因子:9.000
- 作者:
Jennifer L. Wade;Horacio Lopez Marques;Winston Wang;Justin Flory;Benny Freeman - 通讯作者:
Benny Freeman
Frontiers in Polymer Science Editorial
高分子科学前沿编辑
- DOI:
10.1016/j.polymer.2024.126930 - 发表时间:
2024 - 期刊:
- 影响因子:4.6
- 作者:
Benny Freeman;Yanchun Han;Richard Hoogenboom;Jean;Krzysztof Matyjaszewski - 通讯作者:
Krzysztof Matyjaszewski
Fouling and <em>in-situ</em> cleaning of ion-exchange membranes during the electrodialysis of fresh acid and sweet whey
- DOI:
10.1016/j.jfoodeng.2018.11.010 - 发表时间:
2019-04-01 - 期刊:
- 影响因子:
- 作者:
Sahar Talebi;George Q. Chen;Benny Freeman;Francisco Suarez;Adrian Freckleton;Karren Bathurst;Sandra E. Kentish - 通讯作者:
Sandra E. Kentish
Benny Freeman的其他文献
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{{ truncateString('Benny Freeman', 18)}}的其他基金
Collaborative Research: Novel, Energy-Efficient, Self-Cleaning Water Purification Membranes
合作研究:新型、节能、自清洁水净化膜
- 批准号:
1403670 - 财政年份:2014
- 资助金额:
-- - 项目类别:
Standard Grant
Fundamental Water and Ion Transport Properties in Polymers for Membrane Applications
膜应用聚合物的基本水和离子传输特性
- 批准号:
1160128 - 财政年份:2012
- 资助金额:
-- - 项目类别:
Standard Grant
Collaborative Research: Modified Reverse Osmosis Membranes for Forward and Pressure Retarded Osmosis
合作研究:用于正向和压力延迟渗透的改良反渗透膜
- 批准号:
1160069 - 财政年份:2012
- 资助金额:
-- - 项目类别:
Standard Grant
Collaborative Research: A Polymer Synthesis/Membrane Characterization
合作研究:聚合物合成/膜表征
- 批准号:
0931761 - 财政年份:2009
- 资助金额:
-- - 项目类别:
Standard Grant
NIRT: Functionalization of alloy metal nanoparticles for enhanced transport and catalysis in membranes
NIRT:合金金属纳米粒子的功能化,以增强膜中的传输和催化作用
- 批准号:
0708779 - 财政年份:2007
- 资助金额:
-- - 项目类别:
Standard Grant
Collaborative Research: A Polymer Synthesis/Membrane Characterization Program on Fouling-Resistant Membranes for Water Purification
合作研究:用于水净化的防垢膜的聚合物合成/膜表征项目
- 批准号:
0554109 - 财政年份:2006
- 资助金额:
-- - 项目类别:
Standard Grant
Student Travel Support for the 2004 North American Membrane Society Meeting
2004 年北美膜学会会议的学生旅行支持
- 批准号:
0411623 - 财政年份:2004
- 资助金额:
-- - 项目类别:
Standard Grant
GOALI: Gas Transport and Barrier Properties Aromatic Polyamides
GOALI:气体传输和阻隔性能芳香族聚酰胺
- 批准号:
0229233 - 财政年份:2002
- 资助金额:
-- - 项目类别:
Continuing Grant
Support for Student Participation at the 1999 International Conference on Membranes
支持学生参加 1999 年国际膜会议
- 批准号:
9907780 - 财政年份:1999
- 资助金额:
-- - 项目类别:
Standard Grant
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