clean coal,,,but i like oxygen

[dagwill Senior Member Find all posts View Profile Close dagwill]

clean coal is gaining support rapidly,where co2 is removed from the smoke stack and burryed underground.Sounds great, but for every carbon atom ther are TWO oxygen atoms locked away for amillion years HELLO

[smokey2 Member Find all posts View Profile Close smokey2]

Re: clean coal,,,but i like oxygen

Seems alot easier to do away with need for the reaction in the first place.
Reduce usage and substitute alternatives where possible.

But then we are the ones buying those $700 Fujitsu airconditioners that consume 3.5HP as oppoased to a much cheaper evaporative model that uses a tenth of the power.
or
a top load washing machine that uses much more hot water than a front loader.

etc

[zigparacingtadpole Senior Member Find all posts View Profile Close zigparacingtadpole]

Re: clean coal,,,but i like oxygen

Burying the carbon also has some other consequences that noone has really put much thought into. By burying it all we are effectively doing is taking the problem out of the sky and putting it into the ground. Sounds good in theory but its not really the solution. The solution is as you have stated, reduce usage and supply demand from cleaner sources. Carbon trading is touted as a solution but it really doesnt solve anything apart from making the company that manages the trading a fairly substantial amount of money. Reduce, re-use, recycle, and convince our government that it is worthwhile investing in 'Green Energy' infrastructure.

Global warming is real and it is happening. Last week was a great example, Bushfires in NSW, Snow in Vic and Tas, and big chunks of Antarctica floating around off the coast of NZ. The time to do something about it was yesterday, we will now continually be playing catchup.

Regards
Adam

"Revolution never comes with a warning!"

[Slippery Senior Member Find all posts View Profile Close Slippery]

Re: clean coal,,,but i like oxygen

I was just wondering if anyone had thought of another problem with pumping all that gas underground.

Baloons pop when you over inflate them !!!!!!!!!!!!!!!

[Tony From West Oz Vice Chairperson of WARFA Find all posts View Profile Close Tony From West Oz]

Re: clean coal,,,but i like oxygen

It will leak out. the earth is not a sealed container. Especially since we have been drill ing holes to get oil out.

Any seismic activity could cause a fissure through which the CO2 could leak out unnoiticed. Then suddenly, we have a MORE rapid increase in CO2, the biosphere will shutdown.
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[Jake Junior Member Find all posts View Profile Close Jake]

Re: clean coal,,,but i like oxygen

Some thoughts..

Energy saving: If my calculations are correct, the average electricity consumption in Australian households is 2780 kWh per person per year. Anything less than that and you're on the right track.

Green electricity: Available from most power companies. Much cheaper than installing your own solar panels or wind turbines.

Carbon trading: If implemented correctly, it not only provides additional carbon sinks but also a pricing mechanism that encourages better fuel choices and energy saving. In economic terms: previously externalised costs are internalised.

CO2 sequestration: Interesting development work is being done on feeding CO2 from power stations to algae ponds. Subsequently, oil is extracted from the algae.

[Biofuelsimon Senior Member Find all posts View Profile Close Biofuelsimon]

Re: clean coal,,,but i like oxygen

How much energy does it take to clean the coal up, or convert it to diesel or gasoline?
How geologically stable are the areas that the carbon dioxide is being pumped into. They've been pretty stable for a long time, but that doesn't mean that the formations will be stable in the future.


pip pip

[Guest Close Marc1]

Re: clean coal,,,but i like oxygen

I always wondered why not remove the two oxigen atoms and turn CO2 into plain carbon. How much energy would that need?
I agree that burying it is clearly not a solution by any stretch of the imgination.

[geewizztoo Senior Member Find all posts View Profile Close geewizztoo]

Re: clean coal,,,but i like oxygen

I always wondered why not remove the two oxigen atoms and turn CO2 into plain carbon. How much energy would that need?

Just sunlight, and the equipment needed is called a tree.

[Biofuelsimon Senior Member Find all posts View Profile Close Biofuelsimon]

Re: clean coal,,,but i like oxygen

Yup, chlorophyll is a pretty good catalyst! Carbon dioxide is so persisitant because it is so stable. It takes a lot of energy to break it up...

[Slippery Senior Member Find all posts View Profile Close Slippery]

Re: clean coal,,,but i like oxygen

<<[quote=Tony From West Oz;9285]It will leak out. the earth is not a sealed container. Especially since we have been drill ing holes to get oil out.

Any seismic activity could cause a fissure through which the CO2 could leak out unnoiticed. Then suddenly, we have a MORE rapid increase in CO2, the biosphere will shutdown.>>

So then why pump the stuff underground if it will just escape again.

My earlier post was a little facetious, but, when you think about this, if an earthquake causes a fracture in the crust, resulting in a mass leakage of CO2, thousands, maybe even millions of people could be gassed.

Imagine an earthquake and CO2 escape in say Kobe or San Fran .

Not as far fetched as we might imagine.

Slippery
Small steps taken one at atime.
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[dagwill Senior Member Find all posts View Profile Close dagwill]

Re: clean coal,,,but i like oxygen

the prob is not CO2 escaping the prob is reacting ALL the O2 to begin with. Sure you can capture all the CO2 and store it but whats the piont if we are left with NO OXYGEN left to breath

[Captain Echidna Senior Member Find all posts View Profile Close Captain Echidna]

Re: clean coal,,,but i like oxygen

If we grow a tree to capture the carbon, then the problem is how to put the tree underground? Perhaps we could grow trees, use them for paper then burry the paper underground, storing the carbon in the ground with it?

Did I just make a logical argument for not recycling paper, but to put it into landfill?

Mind you anything makes more sense than burrying gas. There is the point of no O2 left, but even if we only do it a bit, then you still have the scenario Tony has illustrated. The earth is not gastight its not even watertight!
Maybe little Johhny H is going senile.....

[gwalker Senior Member Find all posts View Profile Close gwalker]

Re: clean coal,,,but i like oxygen

When they build that elevator to the moon, why not use a hollow core cable and pump it up there?
George

[zigparacingtadpole Senior Member Find all posts View Profile Close zigparacingtadpole]

Re: clean coal,,,but i like oxygen

There is a veritable goldmine of information about carbon sequestration available on the www.
The link below is a good starting place.

Carbon dioxide sink - Wikipedia, the free encyclopedia

One of the great things about this forum is that it encourages me to think and research. I think it was one of this forums members (possibly Sauman) who said "the more I learn, the more there is to learn".

As I posted previously, I personally dont believe that carbon sequestration is the way forward, at least not in the long term. In the short term it may assist in slowing the rate of temperature rise until a better solution is found.