STTR Phase I: Scalable thermochemical conversion of carbon dioxide to commodity chemical intermediates

STTR 第一阶段：二氧化碳到商品化学中间体的可扩展热化学转化

• 批准号: 1913722
• 负责人: Timothy Roberge
• 金额: $ 22.5万
• 依托单位: CL CHEMICAL COMPANY
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-07-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1913722&HistoricalAwards=false
• 关键词: STTR; Phase; Scalable; thermochemical; conversion

The broader impact/commercial potential of this STTR project is to chemically recycle carbon dioxide, which would otherwise be released to the atmosphere, to useful fuels and products thus providing a closed loop for production and emissions for many common products. Virtually every industry uses petroleum and/or natural gas, either through transportation or plastics (e.g., packaging), and there is no current commercial CO2 /carbon recycling process. The current routes for CO2 conversion are crippled by one or more of the following challenges: (a) very low rates of CO2 conversion, (b) high temperature of operation, (c) non-selective product formation, and (d) issues with scalability of the process.This STTR Phase I project proposes to re-purpose CO2 from a pollutant to a feedstock for fuels and chemicals. Recent research has achieved a proof-of-concept on reverse water-gas shift chemical looping (RWGS-CL). Carbon monoxide (CO), a major component of synthesis gas, is selectively produced, which can be used as the backbone to any chemical or fuel through existing processes. Preliminary performance results and literature findings indicate that this process operation could contribute to unprecedented efficiencies and potential scalability within a small footprint compared to other futuristic technologies that convert CO2. The RWGS-CL process operates at reasonable temperatures with high CO2 conversion rates and highly selective towards CO formation. The RWGS-CL process is thus, unique and transformative in that it addresses all of the major challenges and paves the way for a sustainable generation of greener hydrocarbon fuels at industrial scale. This project aims to enable prototype construction of the technology at 100 x scale of lab tests using formed materials (pellets) capable of operating at industrial scale, a reactor model to capture the performance and size of the RWGS-CL unit, and a techno-economic analysis.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 STTR 项目更广泛的影响/商业潜力是将二氧化碳（否则会释放到大气中）化学回收为有用的燃料和产品，从而为许多常见产品的生产和排放提供闭环。事实上，每个行业都通过运输或塑料（例如包装）使用石油和/或天然气，并且目前没有商业二氧化碳/碳回收工艺。当前的二氧化碳转化路线因以下一个或多个挑战而陷入瘫痪：(a) 二氧化碳转化率极低，(b) 操作温度高，(c) 非选择性产物形成，以及 (d) 工艺的可扩展性问题。该 STTR 第一阶段项目建议将二氧化碳从污染物重新利用为燃料和化学品的原料。最近的研究已经实现了反向水煤气变换化学循环（RWGS-CL）的概念验证。一氧化碳 (CO) 是合成气的主要成分，是选择性生产的，可通过现有工艺用作任何化学品或燃料的主要成分。初步性能结果和文献研究结果表明，与其他转化二氧化碳的未来技术相比，该工艺操作可以在较小的占地面积内实现前所未有的效率和潜在的可扩展性。 RWGS-CL 工艺在合理的温度下运行，具有高 CO2 转化率和对 CO 形成的高度选择性。因此，RWGS-CL 工艺是独特且具有变革性的，因为它解决了所有主要挑战，并为工业规模可持续生产更环保的碳氢燃料铺平了道路。该项目旨在使用能够在工业规模运行的成型材料（颗粒）、捕获 RWGS-CL 装置性能和尺寸的反应堆模型以及技术经济分析，在 100 倍规模的实验室测试中实现该技术的原型构建。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。