skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method for extracting and sequestering carbon dioxide

Abstract

A method and apparatus to extract and sequester carbon dioxide (CO.sub.2) from a stream or volume of gas wherein said method and apparatus hydrates CO.sub.2, and reacts the resulting carbonic acid with carbonate. Suitable carbonates include, but are not limited to, carbonates of alkali metals and alkaline earth metals, preferably carbonates of calcium and magnesium. Waste products are metal cations and bicarbonate in solution or dehydrated metal salts, which when disposed of in a large body of water provide an effective way of sequestering CO.sub.2 from a gaseous environment.

Inventors:
 [1];  [2]
  1. Castro Valley, CA
  2. Livermore, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
947399
Patent Number(s):
6890497
Application Number:
09/759,781
Assignee:
The United States of America as represented by the United States Department of Energy (Washington, DC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Rau, Gregory H, and Caldeira, Kenneth G. Method for extracting and sequestering carbon dioxide. United States: N. p., 2005. Web.
Rau, Gregory H, & Caldeira, Kenneth G. Method for extracting and sequestering carbon dioxide. United States.
Rau, Gregory H, and Caldeira, Kenneth G. Tue . "Method for extracting and sequestering carbon dioxide". United States. https://www.osti.gov/servlets/purl/947399.
@article{osti_947399,
title = {Method for extracting and sequestering carbon dioxide},
author = {Rau, Gregory H and Caldeira, Kenneth G},
abstractNote = {A method and apparatus to extract and sequester carbon dioxide (CO.sub.2) from a stream or volume of gas wherein said method and apparatus hydrates CO.sub.2, and reacts the resulting carbonic acid with carbonate. Suitable carbonates include, but are not limited to, carbonates of alkali metals and alkaline earth metals, preferably carbonates of calcium and magnesium. Waste products are metal cations and bicarbonate in solution or dehydrated metal salts, which when disposed of in a large body of water provide an effective way of sequestering CO.sub.2 from a gaseous environment.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {5}
}

Patent:

Save / Share:

Works referenced in this record:

Mitigation of CO2 by Chemical Conversion:  Plausible Chemical Reactions and Promising Products
journal, March 1996


Enhanced carbonate dissolution:
journal, November 1999


Multiple timescales for neutralization of fossil fuel CO 2
journal, February 1997


A Fizz‐sics Solution: Use Limestone to Cure Lake's CO2 Problem
journal, February 1997


Progress on binding CO2 in mineral substrates
journal, January 1997


The fixation of carbon dioxide in inorganic and organic chemicals
journal, September 1993


Carbon Dioxide Recovery and Disposal from Large Energy Systems
journal, November 1996


Absorption and fixation of carbon dioxide by rock weathering
journal, January 1997


ATMOSPHERES AND OCEANS: Ocean Dumping of CO2
journal, February 2000


CO2 recovery from flue gas by an ecotechnological (environmentally friendly) system
journal, February 1997


The carbonate-silicate geochemical cycle and its effect on atmospheric carbon dioxide over the past 100 million years
journal, September 1983


Carbon dioxide disposal in carbonate minerals
journal, January 1995


Accelerating carbonate dissolution to sequester carbon dioxide in the ocean: Geochemical implications
journal, January 2000


CO2 fixation by artificial weathering of waste concrete and coccolithophorid algae cultures
journal, June 1995