STTR Phase I: Microwave-Enhanced Modular Ammonia Synthesis

这项小型企业技术转让（STTR）第一阶段项目的更广泛影响/商业潜力在于其对微波增强氨合成的探索。微波研究具有颠覆性创新的前景，并通过降低能源需求、最小化直接排放和提高工艺选择性，为大幅减少碳排放提供了机会。将微波能量应用于化学过程可以改变化学反应的发生方式。这个项目的目标是氨的生产，这是世界上产量第二大的化学品。氨被用作肥料，但也被用作碳中性液体燃料；它可以在不排放二氧化碳的情况下发电，使其成为可持续能源的关键。作为氢载体，氨在氢动力系统中的作用预计将随着脱碳的努力而增加。微波增强氨合成可以通过满足日益增长的氨需求，开辟新的市场机会，并潜在地提高盈利能力来改变商业格局。这个STTR一期项目将解决Haber-Bosch工艺，这是一个多世纪以来批量生产氨的标准方法。然而，这一过程在高压和高温下运行，需要持续的能源供应，这相当于更高的运营成本和增加的二氧化碳排放。微波通过与针对活性位点的电磁辐射相互作用，在多相催化剂表面诱导电子转移，提供瞬时、选择性和体积加热。这导致了与传统热加热、导电加热或对流加热根本不同的反应机制。第一阶段项目的目标是直接测试特定微波频率、设计、模型的可行性，并测试氨专用微波增强应用腔的优化，该腔可实现高流速、电场均匀性、催化剂温度均匀性和高电效率。研究将涉及电磁数值分析、实验室催化活性实验、确定频率效应，以及微波敏感催化剂和催化剂载体材料的持续发展。预期的技术成果包括开发一种更有效、可再生动力、成本效益更高的氨合成方法，为能源部门的脱碳工作做出贡献。该奖项反映了美国国家科学基金会的法定使命，并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。

The broader impact/commercial potential of this Small Business Technology Transfer (STTR) Phase I project lies in its exploration of Microwave Enhanced Ammonia Synthesis. Microwave research holds the promise of disruptive innovation and enables opportunities for substantial carbon emission reductions through reduced energy requirements, minimal direct emissions, and increased process selectivity. Applying microwave energy to chemical processes may transform how chemical reactions occur. This project targets the production of ammonia, which is the second most-produced chemical in the world. Ammonia is used as a fertilizer but also as a carbon-neutral liquid fuel; it allows power generation without carbon dioxide (CO2) emissions, making it crucial for sustainable energy. As a hydrogen carrier, ammonia’s role in hydrogen-powered systems is expected to increase with decarbonization efforts. Microwave-enhanced ammonia synthesis can transform the commercial landscape by meeting the increasing demand for ammonia, opening new market opportunities, and potentially increasing profitability.This STTR Phase I project will address the Haber-Bosch process, which has been the standard method to produce ammonia in bulk for over a century. However, this process functions at high pressures and temperatures and requires a constant supply of energy, which equates to higher operational costs and increased emissions of CO2. Microwaves offer instantaneous, selective, and volumetric heating via interaction with electromagnetic radiation that targets the active sites, inducing electron transfer on the surface of a heterogeneous catalyst. This results in a fundamentally different reaction mechanism than conventional thermal heating, conductive, or convective heating. The goal of the Phase-1 project will be to directly test the feasibility of a specific microwave frequency, design, model, and test the optimization of an ammonia-specific microwave-enhanced applicator cavity that implements high flow rates, electric-field uniformity, catalyst temperature uniformity with high electrical efficiency. The research will involve electromagnetic numerical analysis, laboratory catalytic activity experiments, determining frequency effects, and the continued development of microwave-sensitive catalyst and catalyst support material. The anticipated technical results include the development of a more efficient, renewably powered, cost-effective method for ammonia synthesis, contributing to the decarbonization efforts of the energy sector.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.