Effect of Vertical DIC Distribution on Storage Efficiency of Direct Injection of
Date: Friday, September 30 @ 15:15:00 MDT Topic: Impacts of High CO2 on Ecosystems
by Baixin Chen
We estimated the effects of initial
vertical distribution of dissolved inorganic carbon (DIC) on storage efficiency
of direct injection of CO2 into the ocean. Our simulations shown
that the storage efficiencies could be reduced up to 10% if a relative large
droplet (30 mm in diameter) was injected at depth of 1500m. The storage
efficiency of CO2 ocean sequestration is strongly related with not
only injection depth but also the initial CO2 droplet diameter. With
a given injection rate, the larger droplets injected will produce a dilute DIC
plume and thus improve the acute biological impacts but a smaller storage
effective due to droplet ascending.
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