SBIR Phase I: Novel Polymeric Membranes Based on Room-Temperature Ionic Liquids for Carbon Dioxide Removal from Shifted Syngas

该小型企业创新研究（SBIR）第一阶段项目提出开发基于室温离子液体（RTIL）的新型CO2选择性聚合物膜，以提高先进IGCC电厂的CO2捕集成本和效率。该项目的成功将使得能够使用环境友好且经济可行的膜工艺来从IGCC发电厂的变换合成气中去除CO2，同时满足能源部（DOE）至少90%的CO2捕获目标，而电力的平准成本增加不到10%。RTIL独特的性能组合（优异的CO2/H2分离性能，沿着具有定制结构-性能关系的能力）使得RTIL成为下一代CO2/H2分离膜的有希望的候选材料。聚（RTIL）？以及它们在气体分离中的应用潜力。使用聚（RTIL）的拟议应用是前所未有的，从来没有报道。如果RTIL可以制成稳定的固体膜，这一阶段的工作结果将有助于在CO2/H2分离中使用的膜技术的进步，并使使用聚（RTIL）作为膜材料的能力的进一步理解。具有超薄聚（RTIL）层的膜的成功开发将导致制造和使用这些基于RTIL的膜材料的新方法，不仅用于合成气和IGCC应用，而且用于其他与CO2相关的气体分离。

This Small Business Innovation Research (SBIR) Phase I project proposes to develop novel CO2-selective polymeric membranes based on room-temperature ionic liquids (RTILs) for improving the cost and efficiency of CO2 capture from advanced IGCC power plants. The success of this project will enable the use of an environmentally benign and economically viable membrane process to remove CO2 from shifted syngas in IGCC power plants and at the same time meet the Department of Energy (DOE) target of at least 90% capture of CO2 with less than 10% increase in the levelized cost of electricity. The unique combination of RTIL capabilities (excellent CO2/H2 separation properties, along with the capability to tailor structure-property relationships) makes RTILs a promising candidate material for the next generation of membranes for CO2/H2 separations.The broader/commercial impact of this research will be to improve the understanding of RTIL- based polymeric materials ? poly(RTILs) ? and their potential for use in gas separations. Using poly(RTILs) for the proposed application is unprecedented and has never been reported. If RTILs can be made into a stable solid membrane, the results of this Phase I work will aid in the advancement of membrane technologies used in CO2/H2 separations, and enable a further understanding of the capability of using poly(RTILs) as membrane materials. The successful development of membranes with ultra-thin poly(RTILs) layers will lead to new methods for fabricating and using these RTIL-based membrane materials not only for syngas and IGCC applications, but for other CO2-related gas separations as well.