‘CCS toepassen op gas is schoner en goedkoper’

21 maart 2016 – Het afvangen van CO2 zou juist moeten gebeuren in gasgestookte centrales. Sterker nog, dat zou wel eens de ‘missing climate solution’ kunnen zijn. Want het is goedkoper en schoner dan CCS in kolengestookte centrales. Dat meldt Energy Post.

Wanneer gepleit wordt voor het opslaan can CO2 is dat meestal in relatie tot kolengestookte centrales (al dan niet met biomassa-bijstook). Maar het afvangen van CO2 in gasgestookte centrales is goedkoper én schoner. Bovendien blijkt het afvangen van CO2 bij kolengestookte centrales nog vaak een probleem. Dat is tenminste de conclusie van Albert Gilbert (van het researchplatform Spark Library). Energy Post plaatst zijn artikel hierover (dat eerder werd gepubliceerd bij Spark Library).

Alex Gilbert (Spark Library)
Alex Gilbert (Spark Library)

Uit het artikel van Alex Gilbert
‘(…) When most people in energy policy or markets hear “carbon capture and storage” (CCS), they think of coal generation. And rightly so.
Almost all major carbon capture demonstration or commercial projects in the power sector have been for coal-fired power plants; most federal energy research on CCS focuses on coal. Coal has the worst carbon profile of any fuel source, making CCS necessary for continued use of coal in a low-carbon world.
However, while CCS for coal has received the most research and development support, carbon capture may actually be better suited for natural gas. With low natural gas prices in the U.S., lower CO2 emissions per MWh, and much cleaner air emissions, natural gas with CCS could be a critical technology to mitigate climate change while reliably delivering electricity. (…)

Schermafdruk 2016-03-21 07.50.23

Carbon capture for natural gas is much better
While coal with CCS is killed by cost, key technical differences could make natural gas with CCS an ideal technology.
It primarily comes down to volume. Natural gas is 43% less CO2 intense than bituminous coal on a heat content basis (per MMBtu) and the average natural gas combined cycle power plant has 56% less CO2 emissions per MWh (unit electricity) than the average existing coal plant.
Compared to coal with CCS, the carbon capture equipment for a natural gas facility can be much smaller, require less transportation infrastructure, and has greatly reduced energy penalties. Further, the lack of toxic air emissions from natural gas means that other pollutant controls are not required.
These characteristics bring major potential costs savings.  (…)

Technological innovation desperately needed
Unfortunately, if carbon capture for coal is in its infancy, carbon capture for natural gas has barely been conceived. The overwhelming majority of power sector carbon capture demonstration and commercial projects have been for coal.
Significantly increased support is needed from the power sector, government, and the natural gas industry to research, develop, and deploy commercial scale carbon capture at natural gas facilities. Fortunately, such focus is beginning to emerge. (…)’

Alex Gilbert is mede-oprichter van Spark Library, een website met veel data en analyses m.b.t. het Amerikaanse energiebeleid.

Bronnen
Energy Post, 21 maart 2016: Alex Gilbert: Carbon capture for natural gas as the missing climate solution
Oorspronkelijke publicatie
Spark Library, 2 fenruari 2016: Is Carbon Capture for Natural Gas the Missing Climate Solution?

Zie ook
Zie ook het artikel over de oproep van Wim Turkenburg c.s. om op grotye schaal CO2-opslag toe te passen:
FluxEnergie, 17 maart 2016: Nederlanders luiden de noodklok over klimaatakkoord: ‘Er moet veel meer gedaan worden’

Foto: testinstallatie voor CO2-afvang bij kolenstook (Maasvlakte). Foto FluxEnergie/© Paul Tolenaar

Auteur: Redactie

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