Novel Polymer Compositions for High-Temperature Membrane Applications

聚合物膜现在在世界范围内用于执行 高效节能、低成本的液气分离工艺 溪流 设计工程师通常会考虑膜基单元 操作作为传统分离的可行替代方案 技术. 然而，聚合物膜不能 承受高温或化学苛刻的环境， 膜技术的关键优势的许多行业。 目前可获得的聚合物膜现在用于其中的一些中。 恶劣的环境，但其特有的成本和能源效率 由于需要昂贵的化学预处理， 破坏性的流程流或 需要彻底冷却热进料流。 对于大多数过程， 这种预处理是不切实际的或完全不可能的。 此外，委员会认为， 目前可用的非聚合物膜（例如陶瓷）也 昂贵、难以模块化和/或易于发生不可逆的 污垢。 本项目将研究使用 一组坚固的聚合物，用于制备能够承受 在具有化学挑战性的操作中，温度可达300摄氏度。 在 在项目的第一阶段，将评估适当的聚合物， 筛选对各种气体和液体的扩散特性。一个或 更多的将被选择用于第二阶段的进一步研究， 基于这些聚合物将被开发， 优化 聚合物膜现在在世界范围内用于执行 高效节能、低成本的液气分离工艺 溪流 设计工程师通常会考虑膜基单元 操作作为传统分离的可行替代方案 技术. 然而，聚合物膜不能 耐高温或化学苛刻环境 使许多行业失去了膜的关键优势， 技术. 目前可用的聚合物膜现在用于 在这些严酷的环境中，但他们的特点是成本- 能源效率被昂贵的 预处理化学破坏性工艺流或通过 需要彻底冷却热进料流。 该项目将 研究使用一组坚固的聚合物的可行性 来制备能够承受300度高温的膜 在具有化学挑战性的操作中使用摄氏度。 一阶段 在项目中，将评估和筛选合适的聚合物 因为它们有潜力将气体或液体分子从一个 另一个是如果要开发基于聚合物的膜。 将选择一个或多个进行II期进一步研究，其中 将开发基于这些聚合物的实际膜 并优化。

Polymeric membranes are now used worldwide to perform energy-efficient, low-cost separation of liquid and gas process streams. Design engineers routinely conside membrane-based unit operations as viable alternatives to conventional separation technologies. However, the inability of polymeric membranes to withstand high-temperatures or chemically harsh environments deprives many industries of the key advantages of membrane technology. Currently available polymeric membranes are now used in some of these harsh settings, but their characteristic cost- and energy-efficiencies are offset by the need for expensive pretreatment of chemically destructive process streams or by the need to drastically cool hot feed streams. For most processes, such pretreatment is impractical or altogether impossible. Moreover, non-polymeric membranes (e.g. ceramic) currently available are too expensive, difficult to modularize, and/or prone to irreversible fouling. This project will investigate the feasibility of using a group of robust polymers to prepare membranes capable of withstanding up to 300 degrees centigrade in chemically challenging operations. In Phase I of the project, appropriate polymers will be evaluated and screened for diffusion properties to various gases and liquids. One or more will be selected for further study in Phase II, where membranes based on these polymers will be developed and optimized. Polymeric membranes are now used worldwide to perform energy-efficient, low-cost separation of liquid and gas process streams. Design engineers routinely conside membrane-based unit operations as viable alternatives to conventional separation technologies. However, the inability of polymeric membranes to withstand high-temperatures or chemically harsh environments deprives many industries of the key advantages of membrane technology. Currently available polymeric membranes are now used in some of these harsh settings, but their characteristic cost- and energy-efficiencies are offset by the need for expensive pretreatment of chemically destructive process streams or by the need to drastically cool hot feed streams. This project will investigate the feasibility of using a group of robust polymers to prepare membranes capable of withstanding up to 300 degrees centigrade in chemically challenging operations. In Phase I of the project, appropriate polymers will be evaluated and screened for their potential to separate gas or liquid molecules from one another if a membrane based on the polymer were to be developed. One or more will be selected for further study in Phase II, where the actual membranes based on these polymers will be developed and optimized.