The National Forum   Donate   Your Account   On Line Opinion   Forum   Blogs   Polling   About   
The Forum - On Line Opinion's article discussion area



Syndicate
RSS/XML


RSS 2.0

Main Articles General

Sign In      Register

The Forum > Article Comments > Dark clouds gather over coal’s future > Comments

Dark clouds gather over coal’s future : Comments

By David Spratt, published 11/9/2009

Already 'carbon capture and storage', badged as 'clean coal' technology, is stumbling.

  1. Pages:
  2. 1
  3. Page 2
  4. All
"Yes I know your post was a joke but just in case someone is worried then they need not be. You can get enough electricity to work most things from your car battery."

And when the car battery runs out...? Why am I not reassured by this?
Posted by Jon J, Sunday, 13 September 2009 5:28:57 PM
Find out more about this user Recommend this comment for deletion Return to top of page Return to Forum Main Page Copy comment URL to clipboard
Jon
"And when the car battery runs out...? Why am I not reassured by this?
Posted by Jon J, Sunday, 13 September 2009 5:28:57 PM"

What car do you drive?.
My car recharges the battery each time I drive it.
If the electricity stations close down I will have the car fitted with
TWO batteries.
Can you understand this revolutionary idea of mine.
Posted by undidly, Tuesday, 15 September 2009 11:49:10 AM
Find out more about this user Recommend this comment for deletion Return to top of page Return to Forum Main Page Copy comment URL to clipboard
The odd fact about CCS is that CO2 is 3.67 times heavier than its C content. So if we need to bury the CO2 from burning carbon, we are looking at 3.67 million tonnes of storage capacity per million tonnes of C.

What coal field or oil or gas field can suddenly accommodate 3.67 times the mass of the extracted carbon? I need someone to educate me about how we can inject these colossal amounts of CO2 underneath the carbon source - or within the oil or gas field following its depletion - or even nearby. Which geological structures can be jacked up by this injection of CO2 or split apart - and at what cost.

To mine a tonne of carbon, and then capture the resulting CO2, liquify it and then bury (inject) it, must surely cost very much more than the cost of the original mining. Where are the feasibility studies which lay people can access?

Finally, if the storage of CO2 is practical but the cost of electricity doubles as a consequence, why don't we simply get on with developing alternative sources of electricity - even if the cost is 50% more than electricity generated from burning carbon. That's what I see as WIN-WIN logic.
Posted by Beef, Wednesday, 16 September 2009 1:47:35 PM
Find out more about this user Recommend this comment for deletion Return to top of page Return to Forum Main Page Copy comment URL to clipboard
Beef
""Finally, if the storage of CO2 is practical but the cost of electricity doubles as a consequence, why don't we simply get on with developing alternative sources of electricity - even if the cost is 50% more than electricity generated from burning carbon. That's what I see as WIN-WIN logic.""

What?.
Get ready now?.
Our glorious leaders will wait until ALL the oil and coal is gone then
go for renewable energy.
Posted by undidly, Wednesday, 16 September 2009 10:39:55 PM
Find out more about this user Recommend this comment for deletion Return to top of page Return to Forum Main Page Copy comment URL to clipboard
  1. Pages:
  2. 1
  3. Page 2
  4. All

About Us :: Search :: Discuss :: Feedback :: Legals :: Privacy