What is Direct Air Capture? A Technical Explainer

Рет қаралды 39,659

2 жыл бұрын

Direct Air Capture is a technological solution for removing carbon dioxide directly from the atmosphere. This video explains the step by step process for Carbon Engineering’s Direct Air Capture technology that is being commercialized by 1PointFive.
Learn about DAC technology: www.1pointfive.com/dac-techno...
Learn about our first DAC facility: www.1pointfive.com/ector-coun...
Learn about 1PointFive: www.1pointfive.com
#directaircapture

Пікірлер: 38

@carlfromm8181 10 ай бұрын

This sexy/salesy "technical explainer" video kind-of-explains the process used . However, it seriously lacks any technical and economic performance info - e.g. how much energy the process needs to capture and sequester a ton of CO2 (MJ/ton CO2), how this energy would be generated and at what carbon penalty, how much would it cost to run ($/ton CO2 ) and how it compares with carbon cost today, how does net carbon removal effectiveness goes down if captured CO2 is used for secondary oil recovery (Occidental's embarassing scheme), etc., etc. Good start, but needs a major sequel !

@samclayton270 10 ай бұрын

Secondary recovery of oil is not embarrassing. That oil would be recovered anyway using gas injection (water, methane or CO2), and once the oilfield is depleted it can be leveraged as permanent CO2 storage. Yes - only the net CO2 sequestered should be counted as 'removed' from the atmosphere. Right now this new tech is expensive (and unprofitable) to build, so it needs some way of paying for it - and secondary oil recovery can help here. Hopefully then with the learning curve and experience, costs can come down over the next decade.

@kermitbeckmann8004 9 ай бұрын

This is bullshit technology! The amount of power necessary and capital far outweigh the slightest benefit! One volcanic eruption wipes out everything we are doing now.

@Ramzblood 2 ай бұрын

@@samclayton270 it's just another green scam.

@Kevin-ip8uf 26 күн бұрын

My thoughts exactly. Be neat to run the plant on solar power or tidal generators or something, but for natural gas power plants (or god forbid coal), there's going to be plenty of carbon released from combustion. I wonder how this compares to cryodistilled CO2 processes (if you disregard their recovery of argon, hydrogen, oxygen, and whatever else they can sell on the market for gases)

@phucnguyeninh7311 2 ай бұрын

Just a question, why they use KOH instead of NaOH. Although they have the sane reaction efficiency and NaOH is way cheaper, lighter?

@f-86zoomer37 Ай бұрын

All right, so how many kilowatthours will be used? Will it take out more carbon than is produced by a power plant based on the kWh it uses to do so?

@WeAreBikeScouts 11 ай бұрын

Just curious, where are these carbon capture plants getting power from?

@ElSantoLuchador 11 ай бұрын

Carbon capture (CCS) occurs at the site, so if it's a coal plant then... For Direct Air Capture (DAC) it's a problem. It requires a lot of energy and it would be sort of pointless to power it up with a coal plant. Coal plants and NG plants typically use a secondary source for power, usually through captured heat and steam turbines (energy that would otherwise be wasted).

@mitchmorrison7791 10 ай бұрын

@@ElSantoLuchador , what kind of cost are we looking at to erect a DAC facility? i'm guessing that prohibitive costs make this impossible to construct on smaller scales?

@kunjiraman2489 9 ай бұрын

@@mitchmorrison7791Blackrocks have just invested 550m . The overall new budget estimate looks at 1.5b$.

@rprater9 6 ай бұрын

Ultimately They get power from the grid, but many such plants are purchasing renewable power from open markets.

@TexasDroneSpecialist 3 ай бұрын

There will be a solar farm next to the plant.

@user-nn1sk7ii2t 6 ай бұрын

Is it possible to connect these plant to solar energy for power supply?

@YusefNilson 6 ай бұрын

yes all these plants are run off renewable energy

@Ramzblood 2 ай бұрын

@@YusefNilson how?

@bryanmonkhouse5800 17 күн бұрын

yes it is essential to maximize the environmental benefit

@AG-bm2nl 3 ай бұрын

The most inefficient way is calcium carbonate cycle. ~850 degreeC. It is a huge energy flow.

@ppuh6tfrz646 Жыл бұрын

This is very impressive but I don't see how it can make a significant difference when all it does is remove carbon dioxide in the immediate vicinity of the DAC plant. Shouldn't the priority be to capture CO2 directly from its source i.e. where it is being pumped into the atmosphere in vast quantities rather than after diffusion has taken place?

@ElSantoLuchador 11 ай бұрын

That what CCS is. It's captured at the source. CCS is not DAC.

@ppuh6tfrz646 11 ай бұрын

@@ElSantoLuchador Yes, I know. I'm saying that it would be far better to prioritise capturing CO2 at its source rather than taking it from the air when the CO2 has already been massively diluted by diffusion.

@samclayton270 10 ай бұрын

@@ppuh6tfrz646 We probably have to do both. Even if you capture 100% of all newly emitted CO2 at source, we would likely want to lower CO2 in the atmosphere from where it is today, which means you need to have DAC at industrial scale. The reality is that we will still be emitting CO2 from sources like agriculture, cars, planes and other smaller point sources where it really hard (or impossible) to eliminate, so DAC is your method for offsetting those emissions that you couldn't avoid.

@ppuh6tfrz646 10 ай бұрын

@@samclayton270 I just don't see how DAC can make a meaningful difference. Only 0.04% (1 in 2500) of the air contains carbon. That's such a tiny concentration that carbon capture and storage seems far more effective. Also DAC will not be able to remove carbon that is higher in the atmosphere because it would be 'out of reach'.

@samclayton270 10 ай бұрын

The atmosphere mixes - think wind. DAC is a form of carbon capture, and re-read my reply - I think we have to do both. Capturing at source might not be enough.

@biorotterdamforenergyconsu1241 Жыл бұрын

Direct Air Capture Technical Explainer

@rolandchemali1447 7 ай бұрын

We should all get behind this compelling technology. We cannot just sit around and wait for a miracle.

@fredbloke3218 Жыл бұрын

The bottom line is the cost per ton, the average USA citizen creates about 15 tons per year, at $400 per ton removed that is $24,000 for a family of 4, good luck selling that idea to the voters, if carbon credits are being generated the removal is cancelled out by the buyer of the credits.

@mrfrano100 Жыл бұрын

Guess 100 per ton will be more like it. But still…point taken