초록 |
Most current climate models suggest that limiting warming to <2°C will require large scale deployment of negative emissions technologies (NETs). NETs may be natural or technological, with one of the most scalable technological approaches being the direct capture of CO2 from the air, or “direct air capture” (DAC). Because of the ultra-dilute nature of air, the separation of CO2 from this mixture presents a significant engineering challenge.In this lecture, I will reflect on examples of STEM research successes targeting societal grand challenges, followed by a deep dive into the challenges of DAC. I will describe the design and synthesis, characterization and application of porous oxide-supported amine materials that we have developed as cornerstones of new technologies for the removal of CO2 from air. DAC technologies offer an interesting case study for the parallel design of materials, unit operations, and processes in chemical engineering. |