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

该建议旨在通过评估替代吸附材料和通过验证的热力学模型分析变压吸附(PSA)循环的性能，来优化需要从气态碳氢化合物流中脱除氮和二氧化碳的变压吸附(PSA)净化工艺。 变压吸附是一种领先的商业技术，用于将沼气转化为生物甲烷。对于中小型沼气厂，预计它们将在分布式能源生产基础设施中发挥重要作用，与其他气体分离方法相比，PSA系统更灵活、更通用、更具成本效益。 这项提案解决了Xebec Inc.的核心研发问题，Xebec Inc.是一家位于魁北克布莱恩维尔的加拿大公司。Xebec是绿色能源生产PSA系统的主要开发商和全球供应商之一。该项目涵盖四个应用，所有这些应用都需要高性能材料来吸附氮气和二氧化碳。这些应用是：从天然气气流中提纯氦，提高沼气和垃圾填埋气的天然气兼容性，从用作碳氢化合物来源的气流中去除氢气，以及提纯用于清洁能源应用的氢气。

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.