Recover the CO2 from the air ...

Renewable energies except solar electric or thermal (seeforums dedicated below): wind turbines, energy from the sea, hydraulic and hydroelectricity, biomass, biogas, deep geothermal energy ...
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elephant
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Recover the CO2 from the air ...




by elephant » 21/12/15, 14:18

... to recover the carbon.

Apparently it exists:

http://positivr.fr/carbon-engineering-c ... o2-canada/

although I personally have a few questions about energy efficiency, because to be able to operate this machine, energy is required, right?
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by Ahmed » 21/12/15, 21:52

I do not know how this system works exactly, but this can only be of interest if the source of transformation energy is abundant and cheap and if the fuel thus recovered has advantages in terms of mobility or energy density: in short, it is necessary to be able to use an energy source in a place where it would be unrecoverable and to export the product to the place where it can be useful.

The operation (excluding construction, therefore) would be neutral in terms of carbon footprint, which means that it would not be progress in reducing CO2 in the atmosphere, simply a new gadget to use the financial mass for its own reproduction ...
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by chatelot16 » 21/12/15, 23:00

machines to extract CO2 from the air have existed since prehistoric times! it's plants of all kinds like trees, and algae in the sea: it has a big advantage over all machines: it builds itself, it reproduces

so to capture the co2 let the trees grow!

to do better I think we could water the forests in summer so that they produce at full speed instead of slowing down for lack of water ... I think the energy to pump water or even to desalinate sea ​​water would be well used
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by Ahmed » 21/12/15, 23:07

Chatelot, you write:
machines to extract CO2 from the air have existed since prehistoric times!

You are far from the count! :P
About 200 years since the appearance of homo sapiens against 000 million for that of the trees!
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by chatelot16 » 22/12/15, 10:52

in any case capturing CO2 is useless if we do not know what to do with it

to make fuel with CO2 you need energy

on the link at the beginning of this topic there is no information on the process used ... in my opinion it's wacky

the great trick of photosynthesis is to make both the solar collector and the CO2 transformer into storable and useful material ... and not only useful as fuel: even more useful as food

cultivating vegetation to make fuel can seem useless since it will make CO2 again when we burn it ... but the benefit is that the fuel from the crop must replace fossil fuel

let's make vegetable fuels to leave the coal underground

take advantage of the warming to cultivate areas that weren't

use our technical means to irrigate hot areas and keep them green
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by elephant » 22/12/15, 11:04

Chatelot16 said:

capturing CO2 is useless if we don't know what to do with it


Absolutely, a few years ago I proposed to make bubbles for the Perrier ....

Image

or even (it's the holidays!)

Image

yes, yes, I am ashamed! Merry Christmas to everyone !

Image
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Re: Recover CO2 from the air ...




by moinsdewatt » 22/12/15, 14:04

elephant wrote:... to recover the carbon.

Apparently it exists:

http://positivr.fr/carbon-engineering-c ... o2-canada/

although I personally have a few questions about energy efficiency, because to be able to operate this machine, energy is required, right?


It must be this thing that I saw in August 2015.
For the energy to be used, it is obviously wind energy.

THIS GIANT WALL WILL ABSORB CARBON DIOXIDE AND CONVERT IT INTO FUEL

Image
.................

Carbon Engineering's goal is to have commercially viable technology by 2016. A first "pilot plant" is currently being assembled in Squamish, a city in British Columbia, Canada.



http://sciencepost.fr/2015/08/mur-geant ... carburant/

It is so much simpler to collect it at the output of coal-fired power plants.

Commercially viable in 2016. : Cheesy:
Startuppers really take people for idiots.

Of course you will have understood that the image above is a synthetic image.
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