Kinetic Separation by Pressure Swing Adsorption and New Adsorbents

变压吸附和新型吸附剂的动力学分离

• 批准号: 8914754
• 负责人: Ralph Yang
• 金额: $ 14万
• 依托单位: SUNY at Buffalo
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-03-01 至 1993-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8914754&HistoricalAwards=false
• 关键词: Kinetic; Separation; Pressure; Swing; Adsorption

Pressure swing adsorption (PSA) is a periodic adsorption process that utilizes the kinetic effects arising from diffusion rate differences in the sorbent among fluid mixture components to elicit a specie separation. It is a key industrial separation methodology that in most applications to date is bound by thermodynamic equilibrium limitations. The proposed research aims to extend the range of this technology by exploring the kinetic phase of PSA which, although still a relatively new methodology, holds the promise for an increasingly large number of significant industrial applications. This research is a systematic theoretical and experimental study designed to establish a firm basis for this new and novel technology. Included in the work will be three important separations: O2/N2 (AIR), CO2/CH4, and N2/CH4. The latter will be most challenging because there are no commercial adsorbents available with the requisite sorbent equilibrium selectivity. Several promising candidates have been identified and will be investigated. The theoretical research along with the adjunct experimentation here proposed will provide a firm foundation for this new separation method for a wide range of potentially economically important processes.

变压吸附（PSA）是一种周期性吸附过程，它利用吸附剂在流体混合物组分之间的扩散速率差异所产生的动力学效应来引起物质分离。这是一种关键的工业分离方法，在大多数应用中，迄今为止都受到热力学平衡限制的约束。提出的研究旨在通过探索PSA的动力学阶段来扩展这项技术的范围，尽管这仍然是一种相对较新的方法，为越来越多的重要工业应用提供了希望。本研究是一项系统的理论和实验研究，旨在为该新技术奠定坚实的基础。这项工作将包括三种重要的分离：O2/N2 (AIR)， CO2/CH4和N2/CH4。后者将是最具挑战性的，因为没有具有必要的吸附剂平衡选择性的商业吸附剂。已经确定了几个有希望的候选人，并将进行调查。本文提出的理论研究和辅助实验将为这种新的分离方法在广泛的潜在经济上重要的过程中提供坚实的基础。