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

http://www.greencarcongress.com/2010/12/system-for-co2-capture-and-storage-using-seawater-could-offer-lower-cost-option-for-coastal-and-deve.html

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.

Skomentuj

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

Logo WordPress.com

Komentujesz korzystając z konta WordPress.com. Log Out / Zmień )

Zdjęcie z Twittera

Komentujesz korzystając z konta Twitter. Log Out / Zmień )

Facebook photo

Komentujesz korzystając z konta Facebook. Log Out / Zmień )

Google+ photo

Komentujesz korzystając z konta Google+. Log Out / Zmień )

Connecting to %s

%d bloggers like this: