"Researchers in Finland have found a new way to capture carbon dioxide from ambient air that they say is more efficient than existing methods, cheap to produce, reusable, and allows for easy recycling of captured CO₂. The team, led by University of Helsinki post-doctoral researcher Zahra Eshaghi Gorji, published the findings from their research on a compound of superbase material 1,5,7-triazabicyclo [4.3.0] non-6-ene (TBN) and benzyl alcohol last month."
"In their testing, the team found that the TBN-BA liquid compound stood out "in both molar and gravimetric capture capacities," and that it didn't react with nitrogen, oxygen, or other atmospheric gases, suggesting a promising discovery for the future of direct air CO₂ capture. Direct air capture of carbon dioxide isn't a new idea - there are plenty of technologies out there that can do it already."
The TBN–benzyl alcohol (TBN-BA) liquid compound captures CO₂ from ambient air with high molar and gravimetric capacities and shows no reaction with nitrogen, oxygen, or other atmospheric gases. Absorption capacity reaches about 156 milligrams of CO₂ per gram of compound. Captured CO₂ can be released at low temperature, requiring 30 minutes of exposure to 70°C air for desorption. Regeneration energy requirements are far lower than some absorbents that need around 900°C. After an initial cycle with roughly 75% CO₂ recovery, subsequent cycles remove almost all captured CO₂, demonstrating strong recyclability and commercialization potential.
Read at Theregister
Unable to calculate read time
Collection
[
|
...
]