[Terrapreta] BASF's CO2 Scrubbing ZIF

[Mark Ludlow]

Hi Erich,

 

This is an interesting development. Unfortunately, it depends on
zeolite-like structures to "trap" CO2 in a lattice "cage".

 

This is only one part of the sequestration issue. Next is: "What do you do
with it?" If you don't regenerate the zeolite there's little practical
utility; Given the 1:8 volumetric absorption ratio claimed,  this seems only
useful for specialized applications. In reasonable quantities, ordinary
zeolites useful for  capturing H2O (or NH3) are $2/kg. This would make the
cost of this method-if used for sequestration-prohibitively costly.

 

Perhaps if the trapped CO2 could be released at the bottom of the ocean or
something. There's not much that reacts with CO2, without catalytic
intervention. Photosynthesis is looking better all the time!

 

Best regards,

Mark

 

 

From: terrapreta-bounces at bioenergylists.org
[mailto:terrapreta-bounces at bioenergylists.org] On Behalf Of Shengar at aol.com
Sent: Wednesday, April 02, 2008 6:24 PM
To: terrapreta at bioenergylists.org
Subject: [Terrapreta] BASF's CO2 Scrubbing ZIF

 

BASF's CO2 Scrubbing ZIF........also can be modified for other gases. This
may facilitate Biofuel gas separation, I haven't seen any cost estimates
yet.

 

 Selectively removing carbon dioxide from waste streams

A breakthrough by a team of scientists in the US has overcome the challenge
of selectively removing carbon dioxide from waste gases. It all relies on a
new class of porous materials called ZIFs

http://www.engineerlive.com/features/20086/selectively-removing-carbon-dioxi
de-from-waste-streams.thtml

 

 

Cheers,

Erich





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