Australian Politics Forum - Turn CO2 back into carbon

juliar

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Turn CO2 back into carbon
Aug 8^th, 2019 at 6:38am

The future of coal is assured with this CO₂ capture and convert back to carbon invention.

New carbon capture method turns CO2 back into coal
Jonathan Bradley by Jonathan Bradley July 10, 2019

carbon capture

Burning coal releases carbon dioxide into the air. What if the process could be reversed?

Some processes go in one direction only: it’s much easier to bake a batter than to extract flour, eggs, sugar and butter from a finished cake.

The same problem applies to carbon emissions: burning fossil fuels is a straightforward process but removing carbon dioxide from the atmosphere and turning it back into coal is a far more challenging task.

However, an international team led by engineers from the Royal Melbourne Institute of Technology (RMIT) and the University of New South Wales (UNSW) has done exactly that.

The process involves dissolving carbon dioxide in an electrolyte liquid that has small amounts of a cerium liquid metal catalyst added to it.

When the mixture is charged with an electric current, the dissolved carbon dioxide gradually converts into flakes of solid carbon. The process takes place at room temperature.

At the moment, carbon capture and storage involves compressing carbon dioxide into a liquid and sending it to a suitable underground location.

This method, however, can be costly and runs the risk of environmentally harmful leaks. According to RMIT researcher Senior Lecturer Dr Torben Daeneke, carbon dioxide had previously only been converted to a solid at an extremely high temperature.

“We’ve shown it’s possible to turn the gas back into carbon at room temperature, in a process that’s efficient and scalable,” he said.

“While we can’t literally turn back time, turning carbon dioxide back into coal and burying it back in the ground is a bit like rewinding the emissions clock.”

RMIT’s Dr Dorna Esrafilzadeh said one side benefit is the carbon ability to hold electrical charge.

“It could potentially be used as a component in future vehicles,” she said.

“The process also produces synthetic fuel as a byproduct, which could also have industrial applications.”

UNSW Professor Kourosh Kalantar-Zadeh, the project’s lead investigator, said he is excited at the possibility of reducing carbon emissions.

“From coal to CO2 and back to coal again, at room temperature and at low consumed energy — this is something we could only dream of doing before,” he said.

“But no one knew how.”

https://www.createdigital.org.au/carbon-capture-method-turns-co2-back-coal/?utms...

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Sir lastnail Gold Member Offline Australian Politics Posts: 30338 Gender:	Re: Turn CO2 back into carbon Reply #1 - Aug 8^th, 2019 at 3:03pm It would be great to turn you back into carbon socko LOL
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Prime Minister for Canyons Gold Member Offline Australian Politics Posts: 26906 Canberra Gender:	Re: Turn CO2 back into carbon Reply #2 - Aug 8^th, 2019 at 3:18pm So juliar agrees CO2 is a problem hten.
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juliar

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Re: Turn CO2 back into carbon
Reply #3 - Aug 9^th, 2019 at 9:48am

BH, not really as it is essential for life on earth but it will sink the Greenies' spurious arguments against coal which is essential for providing endless cheap energy to reduce the cost of living and make wages increase in value.

See scunge is slavering in the bushes and begging to be noticed as the pour sole is so insignificant.

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Carl D

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Re: Turn CO2 back into carbon
Reply #4 - Aug 9^th, 2019 at 10:22am

juliar wrote on Aug 9^th, 2019 at 9:48am:

See scunge is slavering in the bushes and begging to be noticed as the pour sole is so insignificant.

Seriously, juliar must be some sort of Liberal Party 'bot'.

The same spelling mistakes... all the time...

... I wonder if we can get the 'juliar bot' to self destruct like Captain Kirk was so adept at doing in Star Trek?

LOL.

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** Repeat Covid infections exercise our immune system in the same way that repeat concussions exercise our brain **

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juliar Gold Member Offline Australian Politics Posts: 22966	Re: Turn CO2 back into carbon Reply #5 - Aug 9^th, 2019 at 10:30am Oh Carl D, subtlety is lost on the Lefties.
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Bobby. Gold Member Offline Australian Politics Posts: 111593 Melbourne Gender:	Re: Turn CO2 back into carbon Reply #6 - Aug 9^th, 2019 at 10:59am Sounds like nonsense. It would take the same amount of energy to break the carbon/ oxygen bonds as was obtained by burning the coal. Therefore - no advantage to turn it back into carbon. I'm glad I have an education.
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juliar

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Re: Turn CO2 back into carbon
Reply #7 - Aug 9^th, 2019 at 12:21pm

Robert, maybe your education is a bit out of date. This is not from some trashy Greeny site but from a reputable engineering journal.

This is from an international team led by engineers from the Royal Melbourne Institute of Technology (RMIT) and the University of New South Wales (UNSW) - far removed from uneducated loony Greenies.

“From coal to CO2 and back to coal again, at room temperature and at low consumed energy — this is something we could only dream of doing before,” he said.

The process involves dissolving carbon dioxide in an electrolyte liquid that has small amounts of a cerium liquid metal catalyst added to it.

When the mixture is charged with an electric current, the dissolved carbon dioxide gradually converts into flakes of solid carbon. The process takes place at room temperature.

According to RMIT researcher Senior Lecturer Dr Torben Daeneke, carbon dioxide had previously only been converted to a solid at an extremely high temperature.

“We’ve shown it’s possible to turn the gas back into carbon at room temperature, in a process that’s efficient and scalable,” he said.

Doesn't sound like nonsense.

At the moment, carbon capture and storage involves compressing carbon dioxide into a liquid and sending it to a suitable underground location.

This method, however, can be costly and runs the risk of environmentally harmful leaks.

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« Last Edit: Aug 9^th, 2019 at 12:26pm by juliar »

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Bobby. Gold Member Offline Australian Politics Posts: 111593 Melbourne Gender:	Re: Turn CO2 back into carbon Reply #8 - Aug 9^th, 2019 at 12:35pm Juliar, The idea is the same as free energy or a perpetual motion machine.
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juliar

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Re: Turn CO2 back into carbon
Reply #9 - Aug 11^th, 2019 at 4:36pm

Robert, calming your inquiring mind is indeed a challenge.

But as your curiosity is aroused then this original scientific article which describes in detail how it is done should alleviate your doubts.

Very roughly they invented a catalyst which greatly facilitates the process. This is what a catalyst does.

Consider the catalytic converter in series with your modern exhaust pipe sucking pollution out of the exhaust stream.

Of course as you so astutely point out, the ultimate success depends on the commercialization of the process and sticking it in coal generator exhaust stacks.

Room temperature CO₂ reduction to solid carbon species on liquid metals featuring atomically thin ceria interfaces
Dorna Esrafilzadeh, Ali Zavabeti, Rouhollah Jalili, Paul Atkin, Jaecheol Choi, Benjamin J. Carey, Robert Brkljača, Anthony P. O’Mullane, Michael D. Dickey, David L. Officer, Douglas R. MacFarlane, Torben Daeneke & Kourosh Kalantar-Zadeh
Nature Communications volume 10, Article number: 865 (2019)

A Publisher Correction to this article was published on 20 March 2019 This article has been updated

Abstract
Negative carbon emission technologies are critical for ensuring a future stable climate. However, the gaseous state of CO₂ does render the indefinite storage of this greenhouse gas challenging.

Herein, we created a liquid metal electrocatalyst that contains metallic elemental cerium nanoparticles, which facilitates the electrochemical reduction of CO₂ to layered solid carbonaceous species, at a low onset potential of −310 mV vs CO₂/C.

We exploited the formation of a cerium oxide catalyst at the liquid metal/electrolyte interface, which together with cerium nanoparticles, promoted the room temperature reduction of CO₂.

Due to the inhibition of van der Waals adhesion at the liquid interface, the electrode was remarkably resistant to deactivation via coking caused by solid carbonaceous species.

The as-produced solid carbonaceous materials could be utilised for the fabrication of high-performance capacitor electrodes.

Overall, this liquid metal enabled electrocatalytic process at room temperature may result in a viable negative emission technology.

Read on here

https://www.nature.com/articles/s41467-019-08824-8

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juliar

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Re: Turn CO2 back into carbon
Reply #10 - Aug 11^th, 2019 at 4:50pm

Even NASA is getting in on the act.

Solar Powered Carbon Dioxide (CO2) Conversion
A low-cost nanomaterial thin-film device

NASA has developed a new technology that can convert the greenhouse gas carbon dioxide (C02) into fuel by using solar-powered, thin-film devices.

Metal oxide thin films are fabricated to produce a photoelectrochemical cell that is powered by solar energy. By converting CO2 to fuel before it is emitted to the atmosphere this technology can mitigate the effects of the burning of fossil fuels, the worlds major fuel source for the foreseeable future

This new nanomaterial thin-film device provides a low cost, facile fabrication pathway to commercialize the technology in the sustainable energy market.

More importantly, it results in a zero carbon footprint by recycling C02 to fuels that are compatible with all existing fuel utilities. This is accomplished by using solar power to convert the C02 into a useable fuel in a very compact device.

Benefits
Efficient conversion of carbon dioxide
High efficiency sustainable energy usage
Inexpensive operations
Versatile
PV integrated device platform
Reduced emissions
Uses solar energy as the only power source
Useful fuels produced

Applications
Carbon capture technologies
Photoelectrochemistry
Automobile industry
Materials Science

The Technology
This technology consists of a photoelectrochemical cell composed of thin metal oxide films. It uses sunlight (primarily the ultraviolet (UV), visible and Infrared (IR) portions)) and inexpensive titanium dioxide composites to perform the reaction.

The device can be used to capture carbon dioxide produced in industrial processes before it is emitted to the atmosphere and convert it to a useful fuel such as methane.

These devices can be deployed to the commercial market with low manufacturing and materials costs. They can be made extremely compact and efficient and used in sensor and detector applications.

https://technology.nasa.gov/patent/TOP2-160

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Sir lastnail

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Re: Turn CO2 back into carbon
Reply #11 - Aug 11^th, 2019 at 4:56pm

The future of electric cars is assured with Tesla's purchase of Maxwell's battery and super capacitor technology Wink

To bad we don't have progressive people like Elon Musk in Australia to offset the brain dead LNP supporters !

It's bad news for socko and his mates as there will be no more fire stories for them to spam the forum with Wink

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"All of the arab states have said we will have peace with Israel when there is a state of Palestine as a UN member state and properly constituted." - Jeffrey Sachs.

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Sir lastnail

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Re: Turn CO2 back into carbon
Reply #12 - Aug 11^th, 2019 at 5:07pm

Bobby. wrote on Aug 9^th, 2019 at 12:35pm:

Juliar,
The idea is the same as free energy
or a perpetual motion machine.

Anything to ripoff the punters on coal deals is what the LNP is all about !! Even pie in the sky hare brain ideas like this is what they will throw millions of tax payer dollars at one of their crooked LNP mates to engage in this BS Sad

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"All of the arab states have said we will have peace with Israel when there is a state of Palestine as a UN member state and properly constituted." - Jeffrey Sachs.

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juliar

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Re: Turn CO2 back into carbon
Reply #13 - Aug 11^th, 2019 at 5:36pm

Scunge the warped loony Greeny is begging for some attention from her HERO.

As a Tesla Fan Girl she will be relieved that the very popular Toyota petrol hybrids have closed the door on the dangerous unsafe pollution spewing very inconvenient Tesla Toy Cars.

And the Toyota hybrid petrol cars are just the preparation for the final solution of Toyota Hydrogen Hybrid cars which will see the end of the rather useless electric toy cars just like a century ago.

Wonder how much a liter Hydrogen will cost ? Will it be subsidized like LPG was initially ?

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« Last Edit: Aug 11^th, 2019 at 6:26pm by juliar »

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Bobby.

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Re: Turn CO2 back into carbon
Reply #14 - Aug 11^th, 2019 at 6:24pm

Sir lastnail wrote on Aug 11^th, 2019 at 5:07pm:

Bobby. wrote on Aug 9^th, 2019 at 12:35pm:

Juliar,
The idea is the same as free energy
or a perpetual motion machine.

Anything to ripoff the punters on coal deals is what the LNP is all about !! Even pie in the sky hare brain ideas like this is what they will throw millions of tax payer dollars at one of their crooked LNP mates to engage in this BS Sad

Hi Nail & Juliar,
It would work if you had unlimited free energy to use
such as the energy available from a Thorium nuclear reactor
or maybe a fusion reactor.
You could take CO2 out of the air and convert it back to Carbon and Oxygen.

However - trees & plants do that for free using sunlight as the energy source.

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