PFI-RP: Low-Pressure Storage and Separation of Carbon Dioxide and Methane in Biogas to Enable the Use of Renewable Sources

PFI-RP：低压储存和分离沼气中的二氧化碳和甲烷，以实现可再生能源的使用

• 批准号: 2044726
• 负责人: Fateme Rezaei
• 金额: $ 55万
• 依托单位: Missouri University of Science and Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-01-01 至 2024-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2044726&HistoricalAwards=false
• 关键词: PFI; RP; Low; Pressure; Storage

The broader impact/commercial potential of this Partnerships for Innovation - Research Partnerships (PFI-RP) project is a system that enables the creation of next-generation fuel storage/delivery tanks that permit vast areas of the U.S. transform biowaste (biogas) into commercially-important, renewable natural gas on a larger scale. There is a pressing need to replace automotive fossil fuels with renewable fuels. One immediately realizable step in the U.S. is to tap into renewable natural gas of variable grades from biowaste as well as renewable hydrogen from surplus electricity. Low-pressure storage can deliver these fuels to natural gas vehicle operators nationwide, even when off the natural gas grid. This project provides both fundamental insights into low-pressure onboard gas storage and the processes and protocols that permit a system to optimally function on demand both as a fuel storage/delivery system and as a gas separator. The project enables municipalities to use biogas even when they do not have a pipeline-grade renewable natural gas (removal of carbon dioxide) processor or the ability to compress natural gas to fueling-station pressures. The project also enables communities to market locally produced renewable energy.The project seeks to develop, demonstrate, and bring to the marketplace a natural gas tank that can be configured as a dual, on-demand gas storage and separation system for storage and delivery of fuels. The tank will also perform on-board separation of carbon dioxide from low-grade renewable natural gas to generate high-grade renewable natural gas. The gas tank design will fill a critical knowledge gap in the detailed understanding of the adsorption of mixtures into porous materials. The team proposes to build an experimental, theoretical, and computational framework that will lead to new design principles for optimal storage, delivery, and separation of gases in conditions similar to what is expected in a vehicle. Extensive multi-component 3-dimensional (3D) adsorption isotherm surfaces will be studied experimentally and computationally to obtain performance metrics for different materials and adsorption/desorption cycle paths. The team also seeks to understand the behavior of co-adsorbing gas mixtures and their interaction with adsorbents. The project seeks to: create laboratory models of gas storage/separation systems by investigating co-adsorption of mixtures producing 3D isotherms, establish kinetic benchmarks for their desorption, identify optimal protocols for gas storage and separation, and demonstrate a system on a prototype automotive tank, including multiple fill/empty/separation cycles, assessing tank regeneration procedures.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该创新伙伴关系-研究伙伴关系 (PFI-RP) 项目的更广泛影响/商业潜力是一个能够创建下一代燃料储存/输送罐的系统，该系统允许美国广大地区将生物废物（沼气）大规模转化为具有商业重要性的可再生天然气。迫切需要用可再生燃料替代汽车化石燃料。在美国，一项可以立即实现的步骤是利用生物废物中的不同等级的可再生天然气以及利用剩余电力中的可再生氢气。低压储存可​​以将这些燃料输送给全国范围内的天然气汽车运营商，即使在天然气网之外也是如此。该项目提供了对低压船载气体存储的基本见解，以及允许系统作为燃料存储/输送系统和气体分离器按需最佳运行的流程和协议。该项目使市政当局能够使用沼气，即使他们没有管道级可再生天然气（去除二氧化碳）处理器或将天然气压缩至加气站压力的能力。 该项目还使社区能够销售当地生产的可再生能源。该项目旨在开发、演示并向市场推出天然气罐，该天然气罐可配置为双重按需气体存储和分离系统，用于存储和输送燃料。 该储罐还将在船上从低品位可再生天然气中分离二氧化碳，以产生高品位可再生天然气。气罐设计将填补详细了解混合物吸附到多孔材料中的关键知识空白。 该团队建议建立一个实验、理论和计算框架，该框架将带来新的设计原则，以在类似于车辆的预期条件下实现气体的最佳存储、输送和分离。将通过实验和计算研究广泛的多组分 3 维 (3D) 吸附等温线表面，以获得不同材料和吸附/解吸循环路径的性能指标。 该团队还试图了解共吸附气体混合物的行为及其与吸附剂的相互作用。该项目旨在：通过研究产生 3D 等温线的混合物的共吸附来创建气体存储/分离系统的实验室模型，为其解吸建立动力学基准，确定气体存储和分离的最佳方案，并在原型汽车储罐上演示系统，包括多个填充/清空/分离循环，评估储罐再生程序。该奖项反映了 NSF 的法定使命，并已被 通过使用基金会的智力优点和更广泛的影响审查标准进行评估，认为值得支持。

项目成果

Kinetic Process Assessment of H2 Purification over Highly Porous Carbon Sorbents Under Multicomponent Feed Conditions

• DOI: 10.1016/j.seppur.2022.122695
• 发表时间: 2022-11
• 期刊: Separation and Purification Technology
• 影响因子: 8.6
• 作者: K. Baamran;Qasim Al-Naddaf;Shane Lawson;A. Ali Rownaghi;Fateme Rezaei