EAGER:Nitrogen Selective Membrane for Carbon Capture

EAGER：用于碳捕获的氮选择性膜

• 批准号: 1049535
• 负责人: Jennifer Wilcox
• 金额: $ 9.83万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1049535&HistoricalAwards=false
• 关键词: EAGER; Nitrogen; Selective; Membrane; Carbon

1049535 WilcoxThis proposal explores the possibility of developing a Nitrogen-Selective Membrane for CO2 Carbon Capture, which is a problem of immense scope and value to national interests. Instead of trying to separate CO2, which lacks the driving force of concentration, the focus is on a selective-nitrogen (N2) technology that takes advantage of the driving force of N2 in the flue gas stream. This technology requires a catalytic dense membrane in which N2 dissociates across the surface and then diffuses through the membrane as atomic N. Group V metals such as vanadium (V), niobium (Nb), and tantalum (Ta) have experimentally been shown to diffuse atomic N at similar rates to atomic hydrogen (H) in palladium (Pd), at very high temperatures, similar to those of the post-boiler conditions of a coal-fired power plant. Catalytic amounts of ruthenium in particular may be necessary to speed the dissociation of the N2 molecule at the membrane surface.If the above separation were to prove feasible, the longer term studies would involve coupling a H2 purge on the permeate side of the membrane to attempt to convert the dissociated N atoms into ammonia at atmospheric pressure. The dissociation step is apparently rate limiting for NH3 production, and the species that is diffusing through the membrane is the atom. I would like the PI to try at least one experiment in the confines of this EAGER proposal to show proof-of-concept for NH3 generation.This project will have great appeal to the student who will work on it. The opportunity to work on such a novel, yet easy to understand project, with such potential value in the global management of CO2 is quite attractive.

1049535 Wilcoxthis提案探讨了为二氧化碳捕获开发氮选择膜的可能性，这是对国家利益的巨大范围和价值的问题。与其尝试将缺乏浓度驱动力的二氧化碳分离，而是放在选择性氮（N2）技术上，该技术利用了烟道气流中N2的驱动力。这项技术需要一种催化致密的膜，其中N2在整个表面上解离，然后通过膜与原子N.组V金属（如钒（V），尼伯族（NB）和坦塔al（TA）相似，在与这些原子（pd）相似的速度相似的情况下（pd），在实验中，诸如钒（V），niobium（nb）和tantalum（nb）和tantalum（nb）和tantalum（ta）中扩散。燃煤发电厂的后台条件。尤其可能需要使用胰丝状的催化量来加快N2分子在膜表面的解离。解离步骤显然是NH3产生的速率限制，而通过膜扩散的物种是原子。我希望PI在此急切提议的范围内尝试至少一个实验，以展示NH3代的概念概念。该项目将对将研究它的学生具有极大的吸引力。有机会从事这样一个新颖而易于理解的项目，在全球二氧化碳管理中具有如此潜在的价值非常有吸引力。