Carbon Capture & Carbon Capture & Storage(CCS) Storage(CCS) Method to reduce Method to reduce carbon carbon Capture CO Capture CO 2 from from point sources point sources Coal plants Coal plants Store it, not Store it, not release it release it Could reduce Could reduce emissions 80-90% emissions 80-90% from plants from plants
16
Embed
Carbon Capture & Storage(CCS) Method to reduce carbon Capture CO 2 from point sources Coal plants Store it, not release it Could reduce emissions.
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Reduction of Reduction of COCO22 up to 90% up to 90% depending on depending on plantplant
Energy required Energy required for storagefor storage Means more fuel Means more fuel
useuse Pollutants Pollutants
increase = dirty increase = dirty airair
Removing CORemoving CO22
Post CombustionPost Combustion Pre CombustionPre Combustion
Fuel oxidizedFuel oxidized Eventually generate COEventually generate CO22
and Hand H22
COCO22 removed removed
Oxy fuel combustionOxy fuel combustion Burn in oxygen, not airBurn in oxygen, not air Produce COProduce CO22 and H and H22OO Remove water by coolingRemove water by cooling Store COStore CO22 Requires lots of energyRequires lots of energy
Inject in:Inject in: Oil & Gas fieldsOil & Gas fields Depleted Coal seamsDepleted Coal seams Salt depositsSalt deposits Saline filled basaltsSaline filled basalts
Problems with oil fieldsProblems with oil fields Limited distribution and sizeLimited distribution and size Increase emissions with EORIncrease emissions with EOR
Coal SeamsCoal Seams CO2 adsorbs to coal surfaceCO2 adsorbs to coal surface Coal must be permeableCoal must be permeable Will displace methane adsorbedWill displace methane adsorbed Can burn methane, produce CO2Can burn methane, produce CO2
Salt depositsSalt deposits Large storage volume, commonLarge storage volume, common Not much is known about themNot much is known about them
Ocean StorageOcean Storage
Inject COInject CO22 by ship or by ship or pipelinepipeline COCO22 dissolves in deep dissolves in deep
waterwater
Inject to deeper than Inject to deeper than 3000m3000m COCO22 denser than denser than
waters, forms lakewaters, forms lake
Convert COConvert CO22 to to bicarbonatebicarbonate
Store COStore CO22 in clathrate in clathrate hydrateshydrates
Problems with Ocean StorageProblems with Ocean Storage
COCO22 kills organisms kills organisms
COCO22 increases acidity increases acidity of waterof water
After 1600 deep After 1600 deep ocean circulates to ocean circulates to surfacesurface
ExpensiveExpensive
Mineral StorageMineral Storage
Minerals have Mg and CaMinerals have Mg and Ca Add COAdd CO22, convert to , convert to
carbonatescarbonates
Minerals are commonMinerals are common Carbonates are stableCarbonates are stable Must have Must have
Harvest dead/old treesHarvest dead/old trees Bury in trenches in soilBury in trenches in soil
Ocean Iron SeedingOcean Iron Seeding
Enhancing Enhancing productivity in oceansproductivity in oceans Add ironAdd iron Plants/algae grow, use Plants/algae grow, use
up COup CO22
Synthetic TreesSynthetic Trees
Removes CORemoves CO22 by combining by combining with mineralswith minerals
Air flow through sodium Air flow through sodium hydroxide (NaOH) inside treeshydroxide (NaOH) inside trees
Creates NaCreates Na22COCO33 liquid liquid Liquid pumped to sediments Liquid pumped to sediments
below oceanbelow ocean Stored for millions of yearsStored for millions of years
1 tree removes 1000x more 1 tree removes 1000x more than real treethan real tree
250,000 trees need to remove 250,000 trees need to remove 22 billion tons of CO22 billion tons of CO22 produced produced annually from fossil fuelsannually from fossil fuels