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Title: Advanced fire-resistant forms of activated carbon and methods of adsorbing and separating gases using same

Abstract

Advanced, fire-resistant activated carbon compositions useful in adsorbing gases; and having vastly improved fire resistance are provided, and methods for synthesizing the compositions are also provided. The advanced compositions have high gas adsorption capacities and rapid adsorption kinetics (comparable to commercially-available activated carbon), without having any intrinsic fire hazard. They also have superior performance to Mordenites in both adsorption capacities and kinetics. In addition, the advanced compositions do not pose the fibrous inhalation hazard that exists with use of Mordenites. The fire-resistant compositions combine activated carbon mixed with one or more hydrated and/or carbonate-containing minerals that release H.sub.2O and/or CO.sub.2 when heated. This effect raises the spontaneous ignition temperature to over 500.degree. C. in most examples, and over 800.degree. C. in some examples. Also provided are methods for removing and/or separating target gases, such as Krypton or Argon, from a gas stream by using such advanced activated carbons.

Inventors:
;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1169111
Patent Number(s):
8,945,277
Application Number:
12/896,096
Assignee:
Sandia Corporation (Albuquerque, NM) SSO
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Xiong, Yongliang, and Wang, Yifeng. Advanced fire-resistant forms of activated carbon and methods of adsorbing and separating gases using same. United States: N. p., 2015. Web.
Xiong, Yongliang, & Wang, Yifeng. Advanced fire-resistant forms of activated carbon and methods of adsorbing and separating gases using same. United States.
Xiong, Yongliang, and Wang, Yifeng. Tue . "Advanced fire-resistant forms of activated carbon and methods of adsorbing and separating gases using same". United States. https://www.osti.gov/servlets/purl/1169111.
@article{osti_1169111,
title = {Advanced fire-resistant forms of activated carbon and methods of adsorbing and separating gases using same},
author = {Xiong, Yongliang and Wang, Yifeng},
abstractNote = {Advanced, fire-resistant activated carbon compositions useful in adsorbing gases; and having vastly improved fire resistance are provided, and methods for synthesizing the compositions are also provided. The advanced compositions have high gas adsorption capacities and rapid adsorption kinetics (comparable to commercially-available activated carbon), without having any intrinsic fire hazard. They also have superior performance to Mordenites in both adsorption capacities and kinetics. In addition, the advanced compositions do not pose the fibrous inhalation hazard that exists with use of Mordenites. The fire-resistant compositions combine activated carbon mixed with one or more hydrated and/or carbonate-containing minerals that release H.sub.2O and/or CO.sub.2 when heated. This effect raises the spontaneous ignition temperature to over 500.degree. C. in most examples, and over 800.degree. C. in some examples. Also provided are methods for removing and/or separating target gases, such as Krypton or Argon, from a gas stream by using such advanced activated carbons.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {2}
}

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Works referenced in this record:

Characterizing the ignition process of activated carbon
journal, February 1999