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Title: CO.sub.2 removal sorbent composition with high chemical stability during multiple cycles

Abstract

Disclosed herein is a clay-alkali-amine CO.sub.2 sorbent composition prepared by integrating a clay substrate, basic alkali salt, and amine liquid. The basic alkali salt is present relative to the clay substrate in a weight ratio of from about 1 part to about 50 parts per 100 parts of the clay substrate. The amine liquid is present relative to a clay-alkali combination in a weight ratio of from about 1 part to about 10 parts per 10 parts of the clay-alkali combination. The clay-alkali-amine C02 sorbent is particularly advantageous for low temperature CO.sub.2 removal cycles in a gas stream having a C02 concentration less than around 2000 ppm and an oxygen concentration around 21%, such as air.

Inventors:
;
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1221398
Patent Number(s):
9138683
Application Number:
14/297,848
Assignee:
U.S. Department of Energy (Washington, DC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Jun 06
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES

Citation Formats

Siriwardane, Ranjani V., and Rosencwaig, Shira. CO.sub.2 removal sorbent composition with high chemical stability during multiple cycles. United States: N. p., 2015. Web.
Siriwardane, Ranjani V., & Rosencwaig, Shira. CO.sub.2 removal sorbent composition with high chemical stability during multiple cycles. United States.
Siriwardane, Ranjani V., and Rosencwaig, Shira. Tue . "CO.sub.2 removal sorbent composition with high chemical stability during multiple cycles". United States. https://www.osti.gov/servlets/purl/1221398.
@article{osti_1221398,
title = {CO.sub.2 removal sorbent composition with high chemical stability during multiple cycles},
author = {Siriwardane, Ranjani V. and Rosencwaig, Shira},
abstractNote = {Disclosed herein is a clay-alkali-amine CO.sub.2 sorbent composition prepared by integrating a clay substrate, basic alkali salt, and amine liquid. The basic alkali salt is present relative to the clay substrate in a weight ratio of from about 1 part to about 50 parts per 100 parts of the clay substrate. The amine liquid is present relative to a clay-alkali combination in a weight ratio of from about 1 part to about 10 parts per 10 parts of the clay-alkali combination. The clay-alkali-amine C02 sorbent is particularly advantageous for low temperature CO.sub.2 removal cycles in a gas stream having a C02 concentration less than around 2000 ppm and an oxygen concentration around 21%, such as air.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 22 00:00:00 EDT 2015},
month = {Tue Sep 22 00:00:00 EDT 2015}
}

Works referenced in this record:

Endothermal carbon dioxide absorption
patent, August 1977


CO.sub.2 Removal from gaseous streams
patent, February 1984


Carbon dioxide removal using aminated carbon molecular sieves
patent, March 1989


Carbon dioxide adsorbent and method for producing the adsorbent
patent, February 1992


Enhancing carbon dioxide sorption rates using hygroscopic additives
patent, May 1993


Composite adsorbent and process for producing same
patent, July 1993


Regenerable supported amine-polyol sorbent
patent, December 1994


Enhancing carbon dioxide sorption rates using hygroscopic additives
patent, January 1996


Regenerable supported amine-polyol sorbent
patent, February 1996


Regenerable solid amine sorbent
patent, March 1999


Carbon dioxide pressure swing adsorption process using modified alumina adsorbents
patent, June 1999


Carbon dioxide adsorbents containing magnesium oxide suitable for use at high temperatures
patent, August 2001


PSA process for removal of bulk carbon dioxide from a wet high-temperature gas
patent, November 2001


Catalyst element
patent, May 2006


    Works referencing / citing this record:

    CO2 removal sorbent composition with high chemical stability during multiple cycles
    patent, September 2015