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Low-cost carbon capture gets X-rayed
Date:7/31/2012

high resolution powder diffraction beamline at the Diamond synchrotron was key to this discovery; conventional X-ray sources such as those found at most Universities in the UK provide data with broad peaks, which do not make this sort of analysis possible. From a rigorous analysis of peak shapes arising from the data, we were able to determine the shape and size of the hydroxide phase, and determine the level of stress. Knowledge of these derived parameters is key to understanding the mechanism of sintering/disintegration."

Concerns about global warming have prompted both national and international efforts to curb CO2 emissions. CaO based materials are a promising candidate for the removal of CO2 from flue gases at temperatures between 400 and 800 C from processes such as fossil-fuel combustion. They are also being considered as a means to remove the CO2 that is generated as a result of thermochemical fuel upgrading with biomass sources, which are growing more and more popular as an alternative to fossil fuels. Using CaO based materials for carbon capture is just one of the ways to combat global warming. Since CaO based materials are low cost, there is an economic incentive to solve the problem of surface area loss to potentially turn this into a method for large scale CO2 capture. These recently published results are a promising step towards improving these low cost methods.


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Contact: Paula Gould
p.a.gould@leeds.ac.uk
44-011-334-38059
University of Leeds
Source:Eurekalert

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