SBIR Phase II: Novel Urea Mixer to Enable Low Temperature Reduction of Diesel Exhaust Nitrogen Compounds

这个小企业创新研究（SBIR）项目更广泛的影响/商业潜力包括在具有挑战性的低温排气操作中减少柴油发动机有毒氮氧化物（NOx）的排放，同时消除破坏性的尿素沉积物，为车辆制造商节省保修成本，节省燃料，减少温室气体CO2和N2 O以及颗粒物，同时潜在地能够减小复杂和昂贵的柴油机排放控制系统的尺寸。SBIR项目开发的新技术可用于改造现有柴油平台。 氮氧化物对人类呼吸系统和肺部系统构成风险，与形成地面臭氧、光化学氧化剂、酸雨和细颗粒物等多种物质有关，因此其排放受到管制。因此，我们的概念一旦成功，将为社会、环境和移动行业提供广泛的价值主张。最后，对气相反应的深入研究可能会应用于其他科学和技术领域。SBIR第二阶段项目旨在解决目前尚未满足的柴油发动机有毒氮氧化物（NOx）排放问题，特别是在低排气温度下，例如车辆在走走停停、局部交付或怠速时。该项目的目标是开发一种低成本，易于安装和易于集成的新技术，使低温柴油机氮氧化物还原。延续我们成功的第一阶段研究成果，在这个第二阶段项目中，将开发更先进的原型，并在低温排气条件下进行测试，展示在市售选择性催化还原（SCR）催化剂上快速还原NOx，同时评估对降低温室气体CO2和N2 O的影响。 高保真计算机模拟将被大量利用，以进一步我们对潜在机制的理解，如气体-该项目的成果有望缓解柴油机排放控制方面的一个剩余挑战，并迅速受到柴油发动机和车辆行业的欢迎。该奖项反映了NSF的法定使命，并通过使用基金会的学术价值和更广泛的影响审查标准。

The broader impact/ commercial potential of this Small Business Innovation Research (SBIR) project includes reducing emission of Diesel engines' toxic nitrogen oxides (NOx) in challengingly low temperature exhaust operations, while eliminating damaging urea deposits saving warranty costs for vehicle manufacturers, saving fuel, reducing greenhouse gases CO2 and N2O as well as particulate matter, while potentially enabling downsizing the complex and costly diesel emission control systems. The novel technology developed in this SBIR project may be configured for retrofitting existing diesel platforms. Nitrogen oxides pose risks to human respiratory and pulmonary systems, are associated with forming ground level ozone, photochemical oxidants, acid rain and fine particles, amongst a variety of their detriments, and their emission is therefore regulated. Our concept, when successful, will therefore make available a broad value proposition to the society, the environment and to the mobility industry. Finally, the insights developed into its gas phase reactions may have applications in other branches of science and technology.This SBIR Phase II project proposes to resolve a currently unmet need in mitigating emission of toxic nitrogen oxides (NOx) from diesel engines, especially in low exhaust temperatures such as when the vehicle operates in stop-and-go, in local delivery or when idles its engine. The goal of this project is to develop a low cost, easy-to-fit and simple-to-integrate novel technology enabling low temperature Diesel NOx reduction. Continuing our successful Phase I research results, in this Phase II project more advanced prototypes will be developed and tested in low-temperature exhaust conditions, demonstrating rapid reduction of NOx on a commercially-available Selective Catalytic Reduction (SCR) catalyst, while evaluating the impact on lowering greenhouse gases CO2 and N2O. High fidelity computer simulations will be heavily utilized to further our understanding of underlying mechanisms such as the gas-phase reactions as well as to accelerate the development path. The project outcome is expected to alleviate a remaining challenge in Diesel emission control and to be rapidly welcome by the Diesel engine and vehicle industry.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.