Sequestration of CO2 in Mixtures of Bauxite and Saline Waste Water

Conference · Tue May 01 00:00:00 EDT 2007

OSTI ID:915428

Dilmore, R M; Soong, Y; Griffith, C; Allen, D E; Hedges, S W; Frommell, E A; Fu, J K; Dobbs, C L; Zhu, C

Batch and semi-batch experiments were conducted to assess feasibility of utilizing mixtures of caustic bauxite residue slurry and produced brine from the Oriskany sandstone formation to sequester CO2 • Bauxite residue/brine mixture of 90/10 by volume sequestered 9.5 g of CO2 per liter of mixture (100 psig of CO2 at 20 ºC) • Carbon trapping is accomplished primarily through solubilization • Solution of the product mixture was neutralized following carbonation • Flow-through carbonation at 25 ºC and 1 atm. demonstrates that carbonation rates are acceptable for proposed process applications

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
• Sponsoring Organization: USDOE - Office of Fossil Energy (FE); This research was partially funded by the Alcoa Front End Innovation Program
• DOE Contract Number: None cited
• OSTI ID: 915428
• Report Number(s): DOE/NETL-IR-2007-144; TRN: US200817%%512
• Resource Relation: Conference: Sixth Annual Conference on Carbon Capture & Sequestration, Pittsburgh, PA, May 7-10, 2007
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
BAUXITE
BRINES
CARBON DIOXIDE
MIXTURES
RESIDUES
SANDSTONES
TRAPPING
WASTE WATER