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deal · 9 August 2023
Deep Sky ↔ Exterra Solutions Carbone
Deep Sky: a firm purchase of 1,000 t of surficial mineralization of alkaline solid feedstocks removal from Exterra Solutions Carbone.
BuyerDeep Sky
SupplierExterra Solutions Carbone
Tonnes1,000 t
Capture pathwaySurficial mineralization of alkaline solid feedstocks
Storage mediummineralized
Commitment typefirm
Deal structureofftake
Source pathway descriptionMineral carbonation using mining residues (serpentine) from Thetford Mines region. CO2 is extracted from captured carbon and dissolved in water with magnesium or calcium extracted from rock, then CO2 is introduced to the solution to form carbonates.
Storage descriptionCarbonated powder to be stored in abandoned mine pits
Delivery windowQ2 2024 completion; 1000 tonnes CO2 per year
Project locationThetford Mines, Quebec, Canada
NotesDeep Sky has purchased all of Exterra's burial capacity for the next year. Pilot installation will validate Exterra's carbon elimination technology. Initial phase (100 tonnes/year) planned for early 2024 at CIMMS facility using CO2 from ethanol plant. Demonstration facility to be constructed summer 2024 and later converted to R&D center.
Durability defaultedtrue
Pathway noterecoded from other-emerging on 2026-09-01, the source describes mineral carbonation of mining residues
Previous durabilitydurable-1000y
Previous durability basispathway-default
Durability notePathway default removed; duration requires source evidence
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