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Title: Subsurface capture of carbon dioxide

Abstract

A process and apparatus of separating CO.sub.2 gas from industrial off-gas source in which the CO.sub.2 containing off-gas is introduced deep within an injection well. The CO.sub.2 gases are dissolved in the, liquid within the injection well while non-CO.sub.2 gases, typically being insoluble in water or brine, are returned to the surface. Once the CO.sub.2 saturated liquid is present within the injection well, the injection well may be used for long-term geologic storage of CO.sub.2 or the CO.sub.2 saturated liquid can be returned to the surface for capturing a purified CO.sub.2 gas.

Inventors:
; ;
Publication Date:
Research Org.:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1149910
Patent Number(s):
8,783,371
Application Number:
12/655,789
Assignee:
Blount, Gerald (North Augusta, SC) SRO
DOE Contract Number:
AC09-08SR22470
Resource Type:
Patent
Resource Relation:
Patent File Date: 2010 Jan 07
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Blount, Gerald, Siddal, Alvin A., and Falta, Ronald W. Subsurface capture of carbon dioxide. United States: N. p., 2014. Web.
Blount, Gerald, Siddal, Alvin A., & Falta, Ronald W. Subsurface capture of carbon dioxide. United States.
Blount, Gerald, Siddal, Alvin A., and Falta, Ronald W. Tue . "Subsurface capture of carbon dioxide". United States. doi:. https://www.osti.gov/servlets/purl/1149910.
@article{osti_1149910,
title = {Subsurface capture of carbon dioxide},
author = {Blount, Gerald and Siddal, Alvin A. and Falta, Ronald W.},
abstractNote = {A process and apparatus of separating CO.sub.2 gas from industrial off-gas source in which the CO.sub.2 containing off-gas is introduced deep within an injection well. The CO.sub.2 gases are dissolved in the, liquid within the injection well while non-CO.sub.2 gases, typically being insoluble in water or brine, are returned to the surface. Once the CO.sub.2 saturated liquid is present within the injection well, the injection well may be used for long-term geologic storage of CO.sub.2 or the CO.sub.2 saturated liquid can be returned to the surface for capturing a purified CO.sub.2 gas.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 22 00:00:00 EDT 2014},
month = {Tue Jul 22 00:00:00 EDT 2014}
}

Patent:

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  • Disclosed herein are combustion systems and power plants that incorporate sweep-based membrane separation units to remove carbon dioxide from combustion gases. In its most basic embodiment, the invention is a combustion system that includes three discrete units: a combustion unit, a carbon dioxide capture unit, and a sweep-based membrane separation unit. In a preferred embodiment, the invention is a power plant including a combustion unit, a power generation system, a carbon dioxide capture unit, and a sweep-based membrane separation unit. In both of these embodiments, the carbon dioxide capture unit and the sweep-based membrane separation unit are configured to bemore » operated in parallel, by which we mean that each unit is adapted to receive exhaust gases from the combustion unit without such gases first passing through the other unit.« less
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  • A process of manufacturing cement clinker is provided in which a clean supply of CO.sub.2 gas may be captured. The process also involves using an open loop conversion of CaO/MgO from a calciner to capture CO.sub.2 from combustion flue gases thereby forming CaCO.sub.3/CaMg(CO.sub.3).sub.2. The CaCO.sub.3/CaMg(CO.sub.3).sub.2 is then returned to the calciner where CO.sub.2 gas is evolved. The evolved CO.sub.2 gas, along with other evolved CO.sub.2 gases from the calciner are removed from the calciner. The reactants (CaO/MgO) are feed to a high temperature calciner for control of the clinker production composition.
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