Ceramic Spheres to Capture, Store Carbon Di-oxide Emissions

This entry was posted by Monday, 1 March, 2010
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Scientists in Brazil say they have developed a technique for absorbing industry-produced carbon dioxide. The half-centimeter ceramic spheres were developed at the chemistry department of the Federal University of Minas Gerais (UFMG) in Belo Horizonte in south-eastern Brazil.

The ceramic balls absorb and neutralize the CO2 before it is released.

When the CO2 interacts with the sphere material, a high-temperature reaction takes place, said researcher Jadson Belchior. “The absorption isn’t instantaneous. It occurs as a function of time and temperature. They are the two major variables we can control: a more rapid emission process at higher temperatures, or slower emission at lower temperatures,” he said.

The researchers claim the balls can absorb 40% of the CO2 that comes in contact with it, and say they hope to boost that number to 60%.

The resulting residue is carbon dioxide in its gaseous form, which can be packed in cylinders, or its molecules used to make a different molecule through chemical reactions.

Preliminary tests show that the ceramic material can be reused up to 10 times. Experiments conducted by researcher Geison Voga Pereira found that each kilogram of the special ceramic can absorb up to 500 grams of CO2.


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