System for CO2 capture and storage using seawater could offer lower-cost option for coastal and developing areas

Greg Rau of the University of California, Santa Cruz and the Carbon Management Program, Lawrence Livermore National Laboratory, reports in the ACS journalEnvironmental Science & Technology that a lab-scale seawater/mineral carbonate gas scrubber removed up to 97% of CO2 in a simulated flue gas stream at ambient temperature and pressure, with a large fraction of this carbon ultimately converted to dissolved calcium bicarbonate.

After full equilibration with air, he found that up to 85% of the captured carbon was retained in solution—i.e., it did not degas or precipitate. He also calculated that the system could result in a cost of <$38/tonne CO2 converted and stored as Ca(HCO3)2(aq). This compares to >$75/tonne in conventional plants.

Post a comment or leave a trackback: Trackback URL.


Wprowadź swoje dane lub kliknij jedną z tych ikon, aby się zalogować:


Komentujesz korzystając z konta Wyloguj /  Zmień )

Zdjęcie na Google+

Komentujesz korzystając z konta Google+. Wyloguj /  Zmień )

Zdjęcie z Twittera

Komentujesz korzystając z konta Twitter. Wyloguj /  Zmień )

Zdjęcie na Facebooku

Komentujesz korzystając z konta Facebook. Wyloguj /  Zmień )


Connecting to %s

%d blogerów lubi to: