geological sequestration of carbon dioxide. what is sequestration? the removal of co 2 from the...

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Geological Geological Sequestration Sequestration of of Carbon Dioxide Carbon Dioxide

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Geological SequestrationGeological Sequestrationof of

Carbon DioxideCarbon Dioxide

What is Sequestration? What is Sequestration? The removal of COThe removal of CO22 from the atmosphere from the atmosphere

NaturalNatural– ForestsForests– OceansOceans– SoilsSoils

ArtificialArtificial– Carbon captureCarbon capture– OceanOcean– GeologicalGeological– MineralMineral

Geological SequestrationGeological Sequestration

Injection of captured COInjection of captured CO22 deep into the deep into the ground.ground.– 800 meters800 meters– Supercritical fluidSupercritical fluid– Denser than gasDenser than gas– Allows for more storageAllows for more storage– Potential to remain there Potential to remain there

HistoryHistory

Since 1970: Since 1970: petroleum petroleum companies use it to companies use it to retrieve more oil.retrieve more oil.

Since 1930: Since 1930: manufacturers, use manufacturers, use it to make products it to make products like dry ice.like dry ice.

ProsPros– Reduces COReduces CO22

Largest contributor Largest contributor to global climate to global climate changechange

ConsCons– Could reactivate Could reactivate

faultsfaults Environmental Environmental

effectseffects Be harmful to Be harmful to

humanshumans

– Research still in Research still in progressprogress

Case StudyCase Study

Norway Norway implemented a implemented a $55/ton tax on CO$55/ton tax on CO22

– Norway’s state oil Norway’s state oil companycompany

Sleipner facilitySleipner facility First and onlyFirst and only Cost to construct: $80 Cost to construct: $80

millionmillion Annual cost 1% Annual cost 1% Saves $55 million/year Saves $55 million/year

ConclusionConclusion

Still need more observations and Still need more observations and researchresearch

Reduces COReduces CO22, reducing global climate , reducing global climate changechange

Financially stable business techniqueFinancially stable business technique Not the only solution to global Not the only solution to global

warming but it appears to be a good warming but it appears to be a good startstart