Potentially relevant new sorb technology

Gilles · 15th February 2008, 22:59

Read this on the news today.

New materials can selectively capture CO2, scientists say

Pipnaintez · 16th February 2008, 03:23

Looks very interesting.

bendomatic · 16th February 2008, 04:05

i was just interested in what it would cost to manufacture this sort of material. i was envisaging that you could have some small cartridge, possibly disposable. so i was looking around and found this comment. i just wonder if that would be compatible with a diving application.

from New CO2 Capturing Material Could Make Plants Cleaner | Wired Science from Wired.com

Quote:

ZIF-69 is like a carbon dioxide trap, allowing only CO2 in, while screening out molecules with different shapes. Under pressure, the compound allows the carbon dioxide in, but not back out. Then, when scientists decompress the material, the gas is released, allowing scientists to dump the captured CO2 into a storage system.

rachel

Abbo · 17th February 2008, 22:15

The first article says it captures 83 litres of CO2 per litre of absorbent. That would be about the same as the kitty litter we are already using wouldn't it? 2.5 litres of this new absorbent at 1 litre/min O2 would come to 2.5 x 83 / 0.9 = 231 minutes = 3.8 hrs. Put in a margin for error, because breakthrough would come a long way before saturation of the absorbent, and the dive time would be probably 25% less than this wouldn't it?

I noticed that the second article says it absorbs CO2 when under pressure and releases as it decompresses. This seems sub-optimal. Wouldn't I need to have some kind of compressor in my 'breather?!

jhaaja · 18th February 2008, 11:29

So the next gen RBs will have turbos in them! Like YBOD 2,5T

JH

15th February 2008, 22:59	#1 (permalink)
Gilles Worship the feminine Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Sep 2005 Location: Den Haag (Netherlands) Posts: 761	Potentially relevant new sorb technology Read this on the news today. New materials can selectively capture CO2, scientists say __________________ Gilles http://www.dirrebreather.com
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16th February 2008, 03:23	#2 (permalink)
Pipnaintez New Member Current Rebreather/s: Optima Other Rebreather/s: Join Date: Nov 2007 Location: Houston Texas Posts: 52	Re: Potentially relevant new sorb technology Looks very interesting.
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16th February 2008, 04:05	#3 (permalink)
bendomatic it's a girl due 20th May Current Rebreather/s: Sport Kiss Other Rebreather/s: Join Date: Apr 2005 Location: Brisbane Australia Posts: 198	Re: Potentially relevant new sorb technology i was just interested in what it would cost to manufacture this sort of material. i was envisaging that you could have some small cartridge, possibly disposable. so i was looking around and found this comment. i just wonder if that would be compatible with a diving application. from New CO2 Capturing Material Could Make Plants Cleaner \| Wired Science from Wired.com Quote: ZIF-69 is like a carbon dioxide trap, allowing only CO2 in, while screening out molecules with different shapes. Under pressure, the compound allows the carbon dioxide in, but not back out. Then, when scientists decompress the material, the gas is released, allowing scientists to dump the captured CO2 into a storage system. rachel __________________ why deal with idiots on the net when you have to spend all day dealing with them at work.
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17th February 2008, 22:15	#4 (permalink)
Abbo Going down on Meg Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Aug 2006 Location: Tokyo Posts: 379	Re: Potentially relevant new sorb technology The first article says it captures 83 litres of CO2 per litre of absorbent. That would be about the same as the kitty litter we are already using wouldn't it? 2.5 litres of this new absorbent at 1 litre/min O2 would come to 2.5 x 83 / 0.9 = 231 minutes = 3.8 hrs. Put in a margin for error, because breakthrough would come a long way before saturation of the absorbent, and the dive time would be probably 25% less than this wouldn't it? I noticed that the second article says it absorbs CO2 when under pressure and releases as it decompresses. This seems sub-optimal. Wouldn't I need to have some kind of compressor in my 'breather?!
(Offline)

18th February 2008, 11:29	#5 (permalink)
jhaaja Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Mar 2005 Location: Finland Posts: 867	Re: Potentially relevant new sorb technology So the next gen RBs will have turbos in them! Like YBOD 2,5T JH
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