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转化为高价值产品，对环境无害。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增加的价值。目前，活性炭是由化石资源生产的，这些资源不仅有限，而且还会产生有害污染物。要解决的基本问题包括使用超临界CO2（称为sCO2）生产活性炭的基本反应机理。该项目将在该领域产生更广泛的影响，以生产高价值的活性炭，并支持STEM教育和多样性，以利用生物质和sCO2获得高价值的活性炭，从而造福社会。 马里兰州大学的研究小组将开发一种先进的、对环境负责的生物质利用技术，利用超临界CO2（称为sCO2）生产可持续的固体材料，提高价值和应用，而不存在任何经济和环境障碍。将探索sCO2处理工艺，以提高所生产的炭的价值，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等高孔隙率吸附剂、碳催化剂和高品质固体燃料。通过对超临界CO2系统的溶解性和热力学特性的研究，对生物质在sCO2中高压转化的反应机理和动力学进行基础研究，以寻求产品特性的通用性和控制。该奖项反映了NSF的法定使命，通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。