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98 comments on CO2 Capture and Storage: The Energy Costs

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pondlife on July 4, 2007 - 4:54pm Permalink | Subthread | Comments top

Saying that 'some' CO2 can be injected underground for oil recovery is like saying that used vegetable oil is a good source of fuel. It may be true, but the amounts involved are limited. What do we do with the CO2 left after the oil injection? One suggestion is to run the trains on it. A 21st century version of the steam pressure design, but instead of filling up with water and coal, you drop dry ice in the 'water tank' The CO2 sublimates driving the train, and eliminating the fossil fuel required. To chill CO2 to dry ice you could use off peak tidal or whatever..

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Gilgamesh on July 5, 2007 - 10:53am Permalink | Subthread | Parent | Comments top

The mass of co2 injected can be quite high.

however using sublimation of co2 is retarded. the work one can extract from exanding gasses, which draw in heat is near nothing. it is for sure an energy losing process.

co2 is a "dead" molecule, no more energy can be extracted from it.

sheesh.

/thanks for the laugh tho. storing energy as sublimated co2.
//and what about the heavier than air vapours?
///everyone following such a vehicle would probably hyperventalate and pass out, maybe die if the conc. gets high enough

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paal myrtvedt on July 5, 2007 - 10:09pm Permalink | Subthread | Parent | Comments top

Hi - Gilgamesh , you say:

co2 is a "dead" molecule, no more energy can be extracted from it

(I know what U mean ... BUT)

CO2 - is the most important thing actually ... and I therefor disagree 111%

for one -CO2 is "food" for all the green suff around , included algae .. hocus-pocus- there we have meat and fish

-secondly - the byproduct from the photosynthesis in "our dear" oxygen

CO2 is not dead at all - "what is dead though, are the braincells inside the US governmentals heads - or maybe they are throughoutly boneheads over there (?)", I dont know really.

=> this message hereinafter is mentally beamed to the US Senate - and not for TODers, because U are among us nice thinkers :)

I must say quite frankly- that I am very fed up and provocated over the US attitude on climate - and also over the idea of not embedding politics concerning peak-oil and beyond (today)
Remember- you 4% of world population grab and burn 25% of the oil- goods and U flash wars over it and threatens all over the place - it really scares me , and it should also scare the am_voters!

Let history be history - the overwhelming content in the IPCC-report is only understood,acknowledged and "approved" recently by most UN countries -
BUT the US...Australia and a few other "bad" parties does not comply - WHAT do you say ... ? .... You will find YOUR OWN SOULUTIONS ... HAAhhhh? I bet you will, as YOU roll out new SUVs and take the "bio-hal-lelujahs"...and the more "cartoonish hydrogen-hal-lelujah "...

Can americans be re-programmed to skip the idea of car ?
( or at f**** least go fore small tiny-cars. Fro starters..)

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