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

Abstract

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).

Inventors:
; ; ;
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1373912
Patent Number(s):
9,718,693
Application Number:
14/168,272
Assignee:
UT-BATTELLE, LLC
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Jan 30
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Blencoe, James G., Palmer, Donald A., Anovitz, Lawrence M., and Beard, James S. Carbonation of metal silicates for long-term CO.sub.2 sequestration. United States: N. p., 2017. Web.
Blencoe, James G., Palmer, Donald A., Anovitz, Lawrence M., & Beard, James S. Carbonation of metal silicates for long-term CO.sub.2 sequestration. United States.
Blencoe, James G., Palmer, Donald A., Anovitz, Lawrence M., and Beard, James S. Tue . "Carbonation of metal silicates for long-term CO.sub.2 sequestration". United States. https://www.osti.gov/servlets/purl/1373912.
@article{osti_1373912,
title = {Carbonation of metal silicates for long-term CO.sub.2 sequestration},
author = {Blencoe, James G. and Palmer, Donald A. and Anovitz, Lawrence M. and Beard, James S.},
abstractNote = {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).},
doi = {},
url = {https://www.osti.gov/biblio/1373912}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {8}
}

Patent:

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