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Impurities in captured CO2 not likely to cause problems

Publish date: September 20, 2011

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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