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Title: Solid sorbents for removal of carbon dioxide from gas streams at low temperatures

Abstract

New low-cost CO.sub.2 sorbents are provided that can be used in large-scale gas-solid processes. A new method is provided for making these sorbents that involves treating substrates with an amine and/or an ether so that the amine and/or ether comprise at least 50 wt. percent of the sorbent. The sorbent acts by capturing compounds contained in gaseous fluids via chemisorption and/or physisorption between the unit layers of the substrate's lattice where the polar amine liquids and solids and/or polar ether liquids and solids are located. The method eliminates the need for high surface area supports and polymeric materials for the preparation of CO.sub.2 capture systems, and provides sorbents with absorption capabilities that are independent of the sorbents' surface areas. The sorbents can be regenerated by heating at temperatures in excess of 35.degree. C.

Inventors:
 [1]
  1. (Morgantown, WV)
Publication Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV
Sponsoring Org.:
USDOE
OSTI Identifier:
949195
Patent Number(s):
6,908,497
Application Number:
10/420,713
Assignee:
The United States of America as represented by the Department of Energy (Washington, DC) CHO
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Sirwardane, Ranjani V. Solid sorbents for removal of carbon dioxide from gas streams at low temperatures. United States: N. p., 2005. Web.
Sirwardane, Ranjani V. Solid sorbents for removal of carbon dioxide from gas streams at low temperatures. United States.
Sirwardane, Ranjani V. Tue . "Solid sorbents for removal of carbon dioxide from gas streams at low temperatures". United States. https://www.osti.gov/servlets/purl/949195.
@article{osti_949195,
title = {Solid sorbents for removal of carbon dioxide from gas streams at low temperatures},
author = {Sirwardane, Ranjani V.},
abstractNote = {New low-cost CO.sub.2 sorbents are provided that can be used in large-scale gas-solid processes. A new method is provided for making these sorbents that involves treating substrates with an amine and/or an ether so that the amine and/or ether comprise at least 50 wt. percent of the sorbent. The sorbent acts by capturing compounds contained in gaseous fluids via chemisorption and/or physisorption between the unit layers of the substrate's lattice where the polar amine liquids and solids and/or polar ether liquids and solids are located. The method eliminates the need for high surface area supports and polymeric materials for the preparation of CO.sub.2 capture systems, and provides sorbents with absorption capabilities that are independent of the sorbents' surface areas. The sorbents can be regenerated by heating at temperatures in excess of 35.degree. C.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {6}
}

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