Improving the efficiency of gas seperation and purification in pressure swing adsorption processes

该提案旨在通过评估替代吸附剂材料和通过经验证的热力学建模进行PSA循环性能分析，优化需要从气态烃流中去除氮气和二氧化碳的变压吸附（PSA）纯化工艺。 变压吸附是一种用于将沼气升级为生物甲烷的领先商业技术。对于在分布式能源生产基础设施中发挥重要作用的中小型沼气厂来说，PSA系统比其他气体分离方法更灵活、通用和具有成本效益。 该提案涉及Xebec Inc的核心研发问题，该公司是一家位于布兰维尔（魁北克）的加拿大公司。瑞必科是用于绿色能源生产的PSA系统的主要开发商和全球供应商之一。该项目涵盖四种应用，所有这些应用都需要高性能的氮和二氧化碳吸附材料。这些应用包括：从天然气流中提纯氦气，为天然气相容性而对沼气和填埋气进行提质，从用作烃源的气流中除去氢气，以及提纯氢气用于清洁能源应用。

This proposal aims the optimization of pressure swing adsorption (PSA) purification processes requiring the removal of nitrogen and carbon dioxide from gaseous hydrocarbon streams through the assessment of alternate adsorbent materials and the performance analysis of PSA cycles through validated thermodynamic modeling. Pressure swing adsorption is a leading commercial technology used to upgrade biogas into biomethane. For small and mid-size biogas plants, which are expected to play an important role in a distributed energy production infrastructure, PSA systems are more flexible, versatile and cost-effective compared to other gas separation methods. This proposal addresses core R&D issues of Xebec Inc, a Canadian company located in Blainville (Quebec). Xebec is one of the main developers and global suppliers of PSA systems for green energy production. Four applications are covered by this project, all of which require high performance materials with respect to nitrogen and carbon dioxide adsorption. These applications are: helium purification from natural gas streams, upgrading of biogas and landfill gas for natural gas compatibility, removal of hydrogen from gas streams used as source of hydrocarbons and purification of hydrogen for use in clean energy applications.