Background The removal of CO2 from the atmosphere through direct air capture (DAC) can help to stabilize the planet’s climate. There is a need for large-scale negative emission systems as more CO2 will need to be captured and stored in the future. There are existing DAC systems for carbon capture using airflow, which can use large fans to bring...

Background Carbon dioxide (CO2) removal from the atmosphere is a critical factor in mitigating climate change. There are many current technologies being used for CO2 capture, including CO2 removal technologies from ambient air. These technologies typically use sorbent materials or mechanisms that involve laminar flow of air, which can sometimes provide...

Background Carbon dioxide (CO2) emissions are a leading cause of climate change. The removal of CO2 from the atmosphere is a critical factor in mitigating climate change. Passive direct air capture of CO2 is an effective technique for the reduction of CO2 as it reduces the resources required and can easily be integrated with existing systems. There...

Background Carbon dioxide (CO2) capture technology has the potential to alleviate greenhouse gas emissions and mitigate climate change. There are several types of technology that are currently being used to capture and store CO2 such as Direct Air Capture (DAC), power plants, enhanced rock weathering (ERW), etc. Carbon capture technologies are typically...

Background Many current air-capture designs feature flat air contactor surfaces with air flow predominantly tangential to those surfaces. In many cases, it may be advantageous to induce some turbulence across the sheet to enhance transport into the depth of the material. In general, it is advantageous to create surface roughness that is designed to...

The need for technologies to remove carbon dioxide (CO2) from ambient air has been well established. In addition to conservation, reduced-carbon processes, and on-site capture efforts, a significant amount of CO2 will need to be removed from the atmosphere to avoid a looming climate change crisis. Nevertheless, the technologies are still new and the...

­Background Capturing carbon dioxide (CO2) from the environment is an important mechanism in the fight against climate change. More specifically, the capture of CO2 from ambient air at an affordable price could become a critical tool in managing the anthropogenic carbon cycle. Efficient air capture technology would increase the number of options...