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Title: Preparation of sorbent pellets with high integrity for sorption of CO.sub.2 from gas streams

Abstract

Method for the production of a CO.sub.2 sorbent prepared by integrating a clay substrate, basic alkali salt, amine liquid, hydraulic binder, and a liquid binder. 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 substrate and basic alkali salt may be combined in a solid-solid heterogeneous mixture and followed by introduction of the amine liquid. Alternatively, an alkaline solution may be blended with the amine solution prior to contacting the clay substrate. The clay-alkali-amine CO.sub.2 sorbent is particularly advantageous for low temperature CO.sub.2 removal cycles in a gas stream having a CO.sub.2 concentration less than around 2000 ppm and an oxygen concentration around 21%, such as air.

Inventors:
Publication Date:
Research Org.:
National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1252464
Patent Number(s):
9,333,485
Application Number:
14/695,069
Assignee:
U.S. Department of Energy (Washington, DC) NETL
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Apr 24
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Siriwardane, Ranjani V. Preparation of sorbent pellets with high integrity for sorption of CO.sub.2 from gas streams. United States: N. p., 2016. Web.
Siriwardane, Ranjani V. Preparation of sorbent pellets with high integrity for sorption of CO.sub.2 from gas streams. United States.
Siriwardane, Ranjani V. Tue . "Preparation of sorbent pellets with high integrity for sorption of CO.sub.2 from gas streams". United States. doi:. https://www.osti.gov/servlets/purl/1252464.
@article{osti_1252464,
title = {Preparation of sorbent pellets with high integrity for sorption of CO.sub.2 from gas streams},
author = {Siriwardane, Ranjani V.},
abstractNote = {Method for the production of a CO.sub.2 sorbent prepared by integrating a clay substrate, basic alkali salt, amine liquid, hydraulic binder, and a liquid binder. 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 substrate and basic alkali salt may be combined in a solid-solid heterogeneous mixture and followed by introduction of the amine liquid. Alternatively, an alkaline solution may be blended with the amine solution prior to contacting the clay substrate. The clay-alkali-amine CO.sub.2 sorbent is particularly advantageous for low temperature CO.sub.2 removal cycles in a gas stream having a CO.sub.2 concentration less than around 2000 ppm and an oxygen concentration around 21%, such as air.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 10 00:00:00 EDT 2016},
month = {Tue May 10 00:00:00 EDT 2016}
}

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