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Turn CO2 back into carbon (Read 10886 times)
lee
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Re: Turn CO2 back into carbon
Reply #105 - Aug 16th, 2019 at 2:37pm
 
juliar wrote on Aug 16th, 2019 at 2:31pm:
I shouldn't ask but compared to what if oil is getting scarce and the alternative is horses.


Is oil getting scarce?
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Bobby.
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Re: Turn CO2 back into carbon
Reply #106 - Aug 16th, 2019 at 2:54pm
 
juliar wrote on Aug 16th, 2019 at 2:31pm:
I shouldn't ask but compared to what if oil is getting scarce and the alternative is horses.


Juliar,
In the future we'll see a mixture of  electric cars powered by batteries
via renewable energy & also some hydrogen cars.

If energy ever becomes dirt cheap as per via Thorium or Fusion nuclear reactors
then we might see synthetic petrol or kerosene made out of water & CO2 from the atmosphere
to power aeroplanes and internal combustion engines.
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juliar
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Re: Turn CO2 back into carbon
Reply #107 - Aug 16th, 2019 at 3:30pm
 
Bobby I was right I should not have asked. You are a dreamer.
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Sir lastnail
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Re: Turn CO2 back into carbon
Reply #108 - Aug 16th, 2019 at 3:38pm
 
lee wrote on Aug 16th, 2019 at 2:37pm:
juliar wrote on Aug 16th, 2019 at 2:31pm:
I shouldn't ask but compared to what if oil is getting scarce and the alternative is horses.


Is oil getting scarce?


No it renews itself doesn't it Cheesy LOL
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In August 2021, Newcastle Coroner Karen Dilks recorded that Lisa Shaw had died “due to complications of an AstraZeneca COVID vaccination”.
 
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Sir lastnail
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Re: Turn CO2 back into carbon
Reply #109 - Aug 16th, 2019 at 3:39pm
 
juliar wrote on Aug 16th, 2019 at 3:30pm:
Bobby I was right I should not have asked. You are a dreamer.


Hey socko I found a better solution for you Cheesy LOL


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In August 2021, Newcastle Coroner Karen Dilks recorded that Lisa Shaw had died “due to complications of an AstraZeneca COVID vaccination”.
 
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lee
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Re: Turn CO2 back into carbon
Reply #110 - Aug 16th, 2019 at 3:40pm
 
Sir lastnail wrote on Aug 16th, 2019 at 3:38pm:
No it renews itself doesn't it


You really are thick. We haven't reached peak oil yet.
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juliar
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Re: Turn CO2 back into carbon
Reply #111 - Aug 16th, 2019 at 4:00pm
 
Scunge is as thick as a brick.
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Sir lastnail
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Re: Turn CO2 back into carbon
Reply #112 - Aug 16th, 2019 at 4:28pm
 
lee wrote on Aug 16th, 2019 at 3:40pm:
Sir lastnail wrote on Aug 16th, 2019 at 3:38pm:
No it renews itself doesn't it


You really are thick. We haven't reached peak oil yet.


but according to you it is going to last forever because it magically renews itself and of course human induced climate change can never exist because Alan Jones and Tiny ABort say so. A double win for the fuktards Cheesy LOL
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In August 2021, Newcastle Coroner Karen Dilks recorded that Lisa Shaw had died “due to complications of an AstraZeneca COVID vaccination”.
 
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lee
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Re: Turn CO2 back into carbon
Reply #113 - Aug 16th, 2019 at 4:40pm
 
Sir lastnail wrote on Aug 16th, 2019 at 4:28pm:
but according to you it is going to last forever because it magically renews itself and of course human induced climate change can never exist because Alan Jones and Tiny ABort say so.



perhaps you can provide a direct quote as to where I have said it will last forever.

And of course I have never said that humans have not impacted climate.

You know something other than in your own mind. Grin Grin Grin Grin Grin Grin Grin
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juliar
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Re: Turn CO2 back into carbon
Reply #114 - Aug 16th, 2019 at 4:41pm
 
Silly, dopey, must be retarded, loony Greeny scunge just keeps on embarrassing herself. She is definitely not the full quid.
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juliar
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Re: Turn CO2 back into carbon
Reply #115 - Aug 16th, 2019 at 5:19pm
 
Getting away from the Bobby dazzlers and the doubting Thomases and ever forward to fuel from CO2.

Note once again how important catalysts are.





New CO2-to-fuel process could make carbon capture more economical
By Olivia Harvey 05-31-2019

...

Researchers from the University of Toronto Faculty of Applied Science & Engineering have developed a new electrochemical path that can transform CO2 into fuels and plastics. This new technology could drastically improve the way we capture and recycle carbon from the air.

“Today, it is technically possible to capture CO2 from air and, through a number of steps, convert it to commercial products,” said lead researcher Professor Ted Sargent. “The challenge is that it takes a lot of energy to do so, which raises the cost and lowers the incentive. Our strategy increases the overall energy efficiency by avoiding some of the more energy-intensive losses.”

Companies have been experimenting with direct-air carbon capture in recent history. One such company captures its CO2 by forcing air through a liquid alkaline solution wherein the CO2 dissolves and forms a substance called carbonate. Then, to complete the recycling process, the carbonate is then turned back into CO2 gas where it can then be used as the base for fuels and plastics after being mixed with other chemicals.

However, the researchers at the University of Toronto have devised a new recycling plan that utilizes an electrolyzer, a device that uses electricity to produce a chemical reaction, and has already been used to separate hydrogen from water. 

“We used a bipolar membrane, a new electrolyzer design that is great at generating protons,” said co-lead author Geonhui Lee of the study’s paper, published in ACS Energy Letters. “These protons were exactly what we needed to convert the carbonate back into CO2 gas.”

The electrolyzer used in this experiment contains a
silver-based catalyst
that converts the produced CO2 into a gas mixture called syngas, which can be easily turned into a wide variety of other products like jet fuel and various plastics.

“This is the first known process that can go all the way from carbonate to syngas in a single step,” Sargent said. He notes that electrolyzers can be used to convert CO2 into other chemical building blocks, but never into carbonate.


“Once the CO2 turns into carbonate, it becomes inaccessible to traditional electrolyzers,” said co-lead author postdoctoral fellow Y. Chris Li. “That’s part of the reason why they have low yields and low efficiencies. Our system is unique in that it achieves 100% carbon utilization: no carbon is wasted. It also generates syngas as a single product at the outlet, minimizing the cost of product purification.”

The carbonate-to-syngas conversion was successful 35% of the time. More work will be needed to stabilize and scale up the process, but their current findings show a viable alternative to the current process of direct-air carbon capture.

“It goes a long way toward answering the question of whether it will ever be possible to use air-captured CO2 in a commercially compelling way,” Sargent concluded. “This is a key step toward closing the carbon loop.”

https://www.earth.com/news/co2-to-fuel-process-carbon-capture/
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juliar
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Re: Turn CO2 back into carbon
Reply #116 - Aug 16th, 2019 at 5:19pm
 
Wonders will never cease as new catalysts are devised.



Turning CO2 into Fuel
By Ali Green 29 June 2017

...
Artist’s rendition of our fantastic catalyst (not 100% accurate). Purple are Ruthenium nanoparticles supported on the ZrO2 nanoparticles (Zr – blue, O – Red). In reality they are in the nanometer range 10-20 nm and are black. Credit: Renata Lippi, University of Adelaide

When we hear the word ‘environment’ it conjures images of the natural world – vast forests, rolling hills, pristine waterways and fresh air… but these wonders are under threat from greenhouse gases produced by industrialised activity and fossil fuels. For years scientists have been searching for ways to sustain and protect these natural resources so they can continue to support future generations long after we’ve all checked out.

Like all good stories, there is a baddie in the sustainable environment tale, hell-bent on thwarting our science crusaders. Anthropogenic carbon dioxide (CO2) emissions, the product of combusting fossil fuels, plays this role. When fossil fuels that are solid (coal) or stored underground (petrol and natural gas) are burned to provide energy, they produce CO2 in a gaseous form which is released directly into the atmosphere. And we release a lot of it! We also use natural gas, a fossil fuel that contains mostly methane (CH4), for a lot of our industrial activities.

So how do we solve this problem? How can we have our industrialised world and breathe clean air too?

One obvious way is to make more environmentally friendly fuels, and our scientists, working closely with researchers at University of Adelaide have developed a way to do this!

They have created a new catalyst that efficiently converts CO2 into a synthetic form of natural gas. This is particularly exciting because CO2 is a very inert (unreactive) molecule, and has historically been difficult to transform into a commercially useful chemical. But this challenge didn’t stop our researchers. Their new way of synthesising a very efficient catalyst produces almost pure methane from CO2.


‘So what’s a catalyst?’ We hear you ask.

Catalysts are very important materials in the chemical industry. They decrease the activation energy of chemical reactions, allowing reactions to occur which otherwise wouldn’t. In this case, the CO2 methanation used CO2 and H2 (hydrogen) as reactants to produce CH4 and water.

The synthesis process developed by the researchers uses an incredibly interesting next gen material called metal organic frameworks, or MOFs. Made of metals joined to each other by organic linkers, the tiny MOF crystals are full of molecular-sized holes that can absorb, store, separate and release just about anything. Now hold on, because this gets technical…  In this instance, the holes of a zirconium-based MOF were filled with a solution of a ruthenium (Ru) salt (just like a sponge, when you add a few drops of water, the sponge quickly absorbs it by spreading it into its holes) so the Ru salt would be well dispersed within the MOF. The dried MOF with Ru acted as a sacrificial template to form Ru nanoparticles well dispersed over ZrO2 nanoparticles.  Still with us? Great! These nanoparticles make a remarkably active catalyst.

...
Illustration of reactor (transparent): CO2 and H2 (top) pass through the catalyst bed (black plug) where it reacts and transforms into methane and water (bottom). Credit: Renata Lippi

Not only does this highly active catalyst have the potential to help us solve the problem of CO2 emissions on earth but it could also help in the Mars program. Mars’ atmosphere is 96% CO2, and with SpaceX’s Elon Musk recently announcing it will launch a crewed mission to Mars, they plan to produce methane (fuel) on Mars via the same reaction.


The researchers had to synthesise and screen over one hundred materials before they discovered Ru-loaded MOFs provided the optimum results. To speed up this process the team used the rapid automated materials and processing (RAMP) capability. The state-of-the-art high-throughput equipment located at our Clayton site helped fast track materials discovery and process development by running automated experiments, much faster than through traditional methods.  It was also discovered the catalyst can operate at low pressures and mild temperatures, which makes it perfect for potentially running on solar energy.

Although H2 itself can be used as fuel, it is difficult to store and transport due to its flammability although we are working on that problem too. But by producing H2 from renewable (or ‘green’) processes like solar, wind energy and combining with CO2, the resulting synthetic natural gas is safer to handle and can use existing natural gas infrastructure. This concept is called “power-to-gas”.

Read on here

https://blog.csiro.au/turning-co2-into-fuel/
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« Last Edit: Aug 16th, 2019 at 5:35pm by juliar »  
 
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juliar
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Re: Turn CO2 back into carbon
Reply #117 - Aug 16th, 2019 at 5:28pm
 
Scunge fence.
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Sir lastnail
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Re: Turn CO2 back into carbon
Reply #118 - Aug 16th, 2019 at 11:26pm
 
hey socko you'd better go back to basics because you are way out of your depth Cheesy LOL

...
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In August 2021, Newcastle Coroner Karen Dilks recorded that Lisa Shaw had died “due to complications of an AstraZeneca COVID vaccination”.
 
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juliar
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Re: Turn CO2 back into carbon
Reply #119 - Aug 18th, 2019 at 5:12pm
 
MOD can't you do something about this brainless idiot continually offending with ILLEGAL OFF TOPIC SPAM ?
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