Andrew
The deep ocean seal I am postulating is a liquid with low miscibility
with both CO2 and sea water and a density between them. It should self
heal if punctured but could have quite a high viscosity. Whether or not
it will work depends only on current velocities. We need to know what
royalsociety.org/events/Bakerian2011/
From memory ocean storage was pretty safe in theory. Co2 and water dissolve
together to create a mixture more dense than either.
The demo was pretty cool but I'm on my phone so I can't check if the video
is still up.
You can pester the lecturer for a
People have thought about liquid sealing layers before for CO2 lakes on the
bottom of the ocean, and I think the problem is that nobody has come up with
the right substance.
It needs to be:
1. between the density of seawater and liquid CO2 which is a pretty narrow
density range.
2. relatively
What with Mike's mentioning the recent earthquake off of Japan, are
folks on this list aware that the first real-world
methane hydrate mining project, funded by the Japanese government, was
set to begin about a month before the
quake/tsunami, in the Nankai trough, not all that far away, and run by
Unclear how a discussion of methane and fracking got diverted to deep sea CO2
lakes, but if you are suggesting that CCS-captured CO2 be stored as pools in
the deep ocean (discussed at some length in Ken’s IPCC chapter:
Large scale CO2 hydrate production and deposition may be expedited through
the use of a large scale Ocean Thermal Conversion plant positioned over the
target sequestration trough. Here is a paper outlining such a system (Fig.
30).
http://www.kmir6.com/global/video/flash/popupplayer.asp?ClipID1=5889607
___
Ken Caldeira
Carnegie Institution Dept of Global Ecology
260 Panama Street, Stanford, CA 94305 USA
+1 650 704 7212 kcalde...@carnegie.stanford.edu
