Analysis: carbon capture looks really, really expensive
Carbon capture and storage (CCS) has mostly received attention as a way to limit the impact of burning coal, which emits the most CO2 of all fossil fuels. Using this approach, CO2 would be captured from the exhaust stream of a power plant and pumped into a geological formation that would store it for centuries, preventing it from influencing the climate or ocean chemistry. As emissions continue to rise, CCS has attracted attention as a way to emit now and fix the problem later. The same technology that isolates CO2 from the exhaust stream of a power plant could also conceivably pull it right out of the atmosphere.
But how much does it cost? Some initial estimates put the cost of CCS from the atmosphere at under $200 per ton. But a new analysis in PNAS suggests these estimates are misguidedwe already know how much it costs to obtain trace chemicals from a mixture, and it's a whole lot more expensive than that.
The PNAS authors focus on two things: a thermodynamic analysis of CCS, and an empirical evaluation based on our experience with industrial processes for isolating trace gasses.
...
Lees verder: http://arstechnica.com/science/news/2011/1...powerplants.ars
Bron: Ars technica
Artikel:
Laatste berichten
- 14:53 Straatklok loopt 5 minuten voor 12
- 08:29 Programmeren met vectoren 5
- 23:12 speciale rel. theorie 10
- 22:57 wig 6
- 22:36 Gravity and gravitation 4
- 22:24 [scheikunde] vraag Chemie - wat is de oplossing? 10
- 19:47 Bruine vlekken op treinaanwijzerbord 10
- 19:44 Vogels in de stad zijn goede klussers 2
- 19:12 Rood laserlicht 3
- 17:30 Herleiden afmetingen vanaf een foto 21
- 16:34 [wiskunde] Prijs Product per KG; Alternatief Inzicht 3
- 25 apr do-re-mi-fa-so vliegtuigen 9
- 25 apr geen minkowski-ruimte toch? Doe ik dit nou fout? 17
- 25 apr [natuurkunde] kroon van koning op Syracuse 10
- 25 apr 2013 – Augustus Vraag 3 3
- 24 apr Vraag 2009 Juli Vraag 5 5
- 24 apr positie 2
- 24 apr Schroefdraad berekening 8
- 24 apr [scheikunde] Kan chloorgas de geleiding van elektriciteit belemmeren? 9
- 23 apr Weerfrustratie 9
Nieuwsberichten
- 04 mar Een nieuw soort magnetisme: altermagnetisme
- 31 okt AI kan via stem diabetes vaststellen 11
- 21 okt Einstein krijgt wéér gelijk 45
- 07 feb witter dan wit 20
- 19 jun irrigatie en de aardas