Bellona nuclear digest. March 2024
A survey of events in the field of nuclear and radiation safety relating to Russia and Ukraine.
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Impurities in captured CO2 not likely to cause problems
Publish date: September 20, 2011
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Impurities in captured CO2 not likely to cause problems
How impurities in captured CO2 might affect chemical processes presented a question Martyn Poliakoff, and his co-workers of the University of Nottingham, UK, have tried to answer.
The tests verified a discontinued commercial process in supercritical CO2 laced with N2, CO, or H2O to simulate probable contaminants. What they have found out is that N2 introduces only slight phase changes and CO and H2O reduce catalyst activity in the CO2. That activity can be maintained by increasing the reaction temperature. None of the impurities causes major problems, the researchers note, and they believe their findings could help reinforce industrial supercritical CO2 reactions.
Read more: http://pubs.acs.org/cen/science/89/8937scic2.html
The tests verified a discontinued commercial process in supercritical CO2 laced with N2, CO, or H2O to simulate probable contaminants. What they have found out is that N2 introduces only slight phase changes and CO and H2O reduce catalyst activity in the CO2. That activity can be maintained by increasing the reaction temperature. None of the impurities causes major problems, the researchers note, and they believe their findings could help reinforce industrial supercritical CO2 reactions.
Read more: http://pubs.acs.org/cen/science/89/8937scic2.html
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