The Application of Metal-Organic Frameworks to Enhancing the Selective Catalytic Reduction of NOx to Nitrogen Gas

在燃料清洁条件下，减少高温燃烧过程中的氮氧化物（NOx）排放一直是帝国石油公司的优先研究领域，也是能源行业面临的挑战。选择性催化还原（SCR）是可行的金属氧化物和沸石。在氧气和水分存在的情况下，在低于300摄氏度的温度下，仍然需要确定有效地将NOx还原为对环境无害的氮气的催化材料。金属有机骨架（MOFs）是一类具有独特物理化学性能的新型高多孔材料。虽然迄今为止的研究集中在它们的合成和表征上，但它们作为化学/能源部门催化和气体转化应用的有前途的材料的全部潜力尚未实现。我们的目的是评估含铁的mof和不同氧化电位的有机连接剂在NOx的SCR中的性能。这些材料通过了实验规模的合成，并在巴斯夫大规模销售。这些材料的催化活性将在工业相关的压力、温度、氮氧化物水平和气相含水量条件下进行测试。这项研究意义重大，因为它提供了评估新兴催化材料的机会，这些材料可能会改变现有氮氧化物洗涤器的游戏规则，这将帮助帝国石油公司满足严格的排放法规，同时降低其设施中氮氧化物SCR操作的成本

Reduction in nitrogen oxides (NOx) emissions from high temperature combustion processes under fuel-lean conditions continues to be a priority research area for Imperial Oil and a challenge for the energy industry. Selective catalytic reduction (SCR) is possible with metal oxides and zeolites. There is still the need to identify catalytic materials that are efficient in reducing NOx to environmentally benign nitrogen gas at temperatures lower than 300 degrees C in the presence of oxygen and moisture. Metal-organic frameworks (MOFs) are an emerging class of highly porous materials with unique physical and chemical properties. While studies to date focused on their synthesis and characterization, their full potential as promising materials in catalysis and gas conversion for applications in the chemical/energy sectors is not yet realized. We aim to evaluate the performance of MOFs containing iron and organic linkers of various oxidative potential in the SCR of NOx. These materials passed bench scale synthesis and are marketed on mass scales by BASF. The catalytic activity of these materials will be tested under industrially-relevant conditions of pressure, temperature, NOx levels and gas phase water content. This research is significant because it presents opportunities for evaluating emerging catalytic materials for potentially game-changing replacements to existing NOx scrubbers that will help Imperial Oil meet strict emission regulations while cutting costs in NOx SCR operations at their facilities.**