Carbonation of metal silicates for long-term CO.sub.2 sequestration

Blencoe, James G.; Palmer, Donald A.; Anovitz, Lawrence M.; Beard, James S.

Carbonation of metal silicates for long-term CO.sub.2 sequestration

Patent · 01 August 2017

OSTI ID:1373912

Blencoe, James G.; Palmer, Donald A.; Anovitz, Lawrence M.; Beard, James S.

In a preferred embodiment, the invention relates to a process of sequestering carbon dioxide. The process comprises the steps of: (a) reacting a metal silicate with a caustic alkali-metal hydroxide to produce a hydroxide of the metal formerly contained in the silicate; (b) reacting carbon dioxide with at least one of a caustic alkali-metal hydroxide and an alkali-metal silicate to produce at least one of an alkali-metal carbonate and an alkali-metal bicarbonate; and (c) reacting the metal hydroxide product of step (a) with at least one of the alkali-metal carbonate and the alkali-metal bicarbonate produced in step (b) to produce a carbonate of the metal formerly contained in the metal silicate of step (a).

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-00OR22725;

Assignee:: UT-BATTELLE, LLC

Patent Number(s):: 9,718,693

Application Number:: 14/168,272

OSTI ID:: 1373912

Country of Publication:: United States

Language:: English

References (9)

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Carbon dioxide disposal in carbonate minerals Lackner, Klaus S.; Wendt, Christopher H.; Butt, Darryl P. Energy, Vol. 20, Issue 11, p. 1153-1170 https://doi.org/10.1016/0360-5442(95)00071-N	journal	January 1995
Progress on binding CO₂ in mineral substrates Lackner, Klaus S.; Butt, Darryl P.; Wendt, Christopher H. Energy Conversion and Management, Vol. 38, p. S259-S264 https://doi.org/10.1016/S0196-8904(96)00279-8	journal	January 1997
Absorption and fixation of carbon dioxide by rock weathering Kojima, T.; Nagamine, A.; Ueno, N. Energy Conversion and Management, Vol. 38, p. S461-S466 https://doi.org/10.1016/S0196-8904(96)00311-1	journal	January 1997
A new CO₂ disposal process via artificial weathering of calcium silicate accelerated by acetic acid Kakizawa, M.; Yamasaki, A.; Yanagisawa, Y. Energy, Vol. 26, Issue 4, p. 341-354 https://doi.org/10.1016/S0360-5442(01)00005-6	journal	April 2001
Mitigation of CO₂ by Chemical Conversion: Plausible Chemical Reactions and Promising Products Xiaoding, Xu; Moulijn, J. A. Energy & Fuels, Vol. 10, Issue 2, p. 305-325 https://doi.org/10.1021/ef9501511	journal	March 1996
Feasibility of CO₂ Fixation via Artificial Rock Weathering Wu, Jeffrey C.-S.; Sheen, Jenn-Der; Chen, Shyan-Yeh Industrial & Engineering Chemistry Research, Vol. 40, Issue 18, p. 3902-3905 https://doi.org/10.1021/ie010222l	journal	September 2001
Magnesium Hydroxide Dehydroxylation/Carbonation Reaction Processes: Implications for Carbon Dioxide Mineral Sequestration Béarat, Hamdallah; McKelvy, Michael J.; Chizmeshya, Andrew V. G. Journal of the American Ceramic Society, Vol. 85, Issue 4, p. 742-748 https://doi.org/10.1111/j.1151-2916.2002.tb00166.x	journal	April 2002
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