EAGER: Biomass Utilization with Supercritical CO2 for Value-added Materials

EAGER：超临界二氧化碳生物质利用用于增值材料

• 批准号: 2242561
• 负责人: Ashwani Gupta
• 金额: $ 22.5万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-06-15 至 2025-05-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2242561&HistoricalAwards=false
• 关键词: EAGER; Biomass; Utilization; Supercritical; CO2

This project is aimed at environmentally benign conversion of biomass to high value products. The significance of this project lies in converting biomass to activated carbon that offers significant increase in value for a wide range of applications, including water purification, air pollution control and energy storage. Currently the activated carbon is produced from fossil resources that are not only limited but they also produce harmful pollutants. Fundamental issues to be addressed include basic reaction mechanisms in producing activated carbon using supercritical CO2 (called sCO2). The project will provide a broader impact in the field to produce high value activated carbon, as well as support STEM education and diversity to benefit society with the availability of high value activated carbon using biomass and sCO2. The University of Maryland team will develop an advanced and environmentally responsible biomass-utilization technology using supercritical CO2 (called sCO2) to produce sustainable solid materials of enhanced value and application without any economic and environmental impediments. The sCO2 treatment process will be explored to increase the value of char produced with targeted applications including energy storage materials, high-porosity sorbents as activated carbon for water purification and air pollution control, carbon catalysts and high-quality solid fuels. Fundamental investigations on reaction mechanism and kinetics of high-pressure biomass conversion in sCO2 will be carried out to understand solubility and thermodynamic properties of supercritical CO2 systems for seeking versatility and control of product characteristics.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.

该项目旨在将生物质无害地转化为高价值产品。该项目的意义在于将生物质转化为活性炭，为水净化、空气污染控制和能源储存等广泛应用提供显着的价值增加。目前活性炭是由化石资源生产的，这些资源不仅有限，而且会产生有害污染物。要解决的基本问题包括使用超临界二氧化碳（称为 sCO2）生产活性炭的基本反应机制。该项目将在高价值活性炭生产领域产生更广泛的影响，并支持 STEM 教育和多样性，通过利用生物质和 sCO2 生产高价值活性炭来造福社会。 马里兰大学团队将开发一种先进且对环境负责的生物质利用技术，使用超临界二氧化碳（称为 sCO2）来生产具有更高价值和应用的可持续固体材料，而不会造成任何经济和环境障碍。将探索sCO2处理工艺，以提高所产生的炭的价值，其目标应用包括储能材料、用于水净化和空气污染控制的活性炭高孔隙率吸附剂、碳催化剂和高质量固体燃料。将针对 sCO2 中高压生物质转化的反应机理和动力学进行基础研究，以了解超临界 CO2 系统的溶解度和热力学性质，以寻求产品特性的多功能性和控制。该奖项反映了 NSF 的法定使命，并被认为是值得的通过使用基金会的智力优势和更广泛的影响审查标准进行评估来提供支持。