Anthropogenic carbon dioxide emissions have led to rising concerns of global warming. Carbon dioxide in the atmosphere is more efficient at trapping heat than the other components in the air, chiefly nitrogen (78%), oxygen (20.9%), and argon (0.9%). Carbon dioxide concentration in the atmosphere has risen from 280 ppm in the early 1900s to over 400 ppm today and continues to rise at a rate of several ppm per year. These rising concentrations have led to concerns in many nations regarding the impacts over the next century. As a result, new adsorbent materials are being investigated to capture carbon dioxide directly from the air.
In 2019, greenhouse gas emissions accounted for release of 6,558 million metric tons of carbon dioxide (equivalent) with the three largest sectors being transportation (29%), electricity generation (25%), and manufacturing (23%). (epa.gov) The transportation industry is the largest contributor to greenhouse gas emissions, and it is difficult to directly capture their emissions. Direct air capture (DAC) is an emerging technology capable of capturing carbon dioxide directly from the air and is feasible in nearly any location.
In this app note, we investigated direct air capture in silica alumina and zeolite 13X in both humid (40% relative humidity) and dry conditions. Additionally, polyethyleneimine (PEI) and tetraethylenepentamine (TEPA) were loaded into the structures of silica alumina and zeolite 13X to enhance their carbon dioxide adsorption affinity.
Anthropogenic carbon dioxide emissions have led to rising concerns of global warming. Carbon dioxide in the atmosphere is more efficient at trapping heat than the other components in the air, chiefly nitrogen (78%), oxygen (20.9%), and argon (0.9%). Carbon dioxide concentration in the atmosphere has risen from 280 ppm in the early 1900s to over 400 ppm today and continues to rise at a rate of several ppm per year. These rising concentrations have led to concerns in many nations regarding the impacts over the next century. As a result, new adsorbent materials are being investigated to capture carbon dioxide directly from the air.
In 2019, greenhouse gas emissions accounted for release of 6,558 million metric tons of carbon dioxide (equivalent) with the three largest sectors being transportation (29%), electricity generation (25%), and manufacturing (23%). (epa.gov) The transportation industry is the largest contributor to greenhouse gas emissions, and it is difficult to directly capture their emissions. Direct air capture (DAC) is an emerging technology capable of capturing carbon dioxide directly from the air and is feasible in nearly any location.
In this app note, we investigated direct air capture in silica alumina and zeolite 13X in both humid (40% relative humidity) and dry conditions. Additionally, polyethyleneimine (PEI) and tetraethylenepentamine (TEPA) were loaded into the structures of silica alumina and zeolite 13X to enhance their carbon dioxide adsorption affinity.
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