Development of high stability catalysts to facilitate CO2 capture into water–An alternative to monoethanolamine and amine solvents
Copyright policy )Development of high stability catalysts to facilitate CO2 capture into water–An alternative to monoethanolamine and amine solvents
AbstractThe aim is to develop a catalysed water-based capture process, avoiding the energy intensive steam stripping steps necessary with amine solvents. The naturally occurring zinc metallo-enzyme carbonic anhydrase/hydratase (CAH) can concentrate CO2 using a reversible hydration/dehydration cycle at neutral pH and at ambient temperatures. Some tripodal complexes of zinc (II)–[zinc-itrilo-tris(2-benzimidazoyl-methyl-6-sulfonic acid, (zinc-L1S), and zinc-tris(2-benzimidazoylmethyl)-amine, (zinc-LI)], and also cadmium (II), cobalt (II) and other metals complexed to these tripodal ligands have been prepared, and show activity that mimics the CAH catalytic process–hydration of CO2 to bicarbonate followed by the reverse dehydration of the bicarbonate to regenerate CO2 in a pH dependent mechanism. The thermal stability of these complex catalysts has been demonstrated by Differential Thermo-Gravimetric (DTG) studies to above 200 °C. A process for fast absorption/desorption is proposed.
- RMIT University Australia
- RMIT University Australia
Carbonic anhydrase, Catalysts, CO2 hydration, Bicarbonate dehydration, CO2 capture, Catalytic absorption, Post combustion capture, Energy(all), Catalytic desorption, Zinc complexes
Carbonic anhydrase, Catalysts, CO2 hydration, Bicarbonate dehydration, CO2 capture, Catalytic absorption, Post combustion capture, Energy(all), Catalytic desorption, Zinc complexes
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).11 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Average influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Average
Citations provided by BIP!Popularity provided by BIP!