唐忠利. Volumetric overall mass transfer coefficients of CO2 absorption into aqua ammonia in structured packed column[J]. CIESC Journal, 2012, (4): 1102-1107. DOI: 10.3969/j.issn.0438-1157.2012.04.017.
唐忠利. Volumetric overall mass transfer coefficients of CO2 absorption into aqua ammonia in structured packed column[J]. CIESC Journal, 2012, (4): 1102-1107. DOI: 10.3969/j.issn.0438-1157.2012.04.017.DOI:
the emission of CO2 has become a key challenge for the sustainable development in the world.Amongst the CO2 capture techniques
post-combustion decarbonization
which bases on the mature state of art of chemical solvent absorption process
is currently the only one that has access to the industrial test.And aqua ammonia
as a new
alternative absorbent
has attracted much attention in recent years.In this study
the gas phase volumetric overall mass transfer coefficients of dilute CO2 absorption into aqueous ammonia(KGae)were measured to explore the mass-transfer performance in a structured packed column.The KGae value was evaluated over the ranges of main operating variables:gas flow rate
CO2 partial pressure
liquid loading
and ammonia concentration.The results show that higher liquid loading of aqueous ammonia is beneficial to enhance the KGae value.On the contrary
KGae decreases as the CO2 partial pressure increases.Gas loading has little influence on KGae.The experimental results are useful to guide the future work on the packed column design.