Leonardite char adsorbents
Abstract
A process of preparing lignite (low rank) coal filter material, suitable for use in lieu of more expensive activated carbon filter materials, is disclosed. The process comprises size reducing Leonardite coal material to a suitable filtering effective size, and thereafter heating the size reduced Leonardite preferably to at least 750 C in the presence of a flow of an inert gas. 1 figure.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 5398443
- Patent Number(s):
- 5254521
- Application Number:
- PPN: US 7-896333
- Assignee:
- Univ. of North Dakota Energy and Environment Research Center Foundation, Grand Forks, ND (United States)
- DOE Contract Number:
- FC21-86MC10637
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 3 Aug 1992
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 01 COAL, LIGNITE, AND PEAT; ACTIVATED CARBON; MATERIAL SUBSTITUTION; LIGNITE; CARBONIZATION; COMMINUTION; FILTRATION; ADSORBENTS; BROWN COAL; CARBON; CARBONACEOUS MATERIALS; CHEMICAL REACTIONS; COAL; DECOMPOSITION; ELEMENTS; ENERGY SOURCES; FOSSIL FUELS; FUELS; MATERIALS; NONMETALS; SEPARATION PROCESSES; 010500* - Coal, Lignite, & Peat- Products & By-Products; 010409 - Coal, Lignite, & Peat- Pyrolysis & Carbonization- (1987-)
Citation Formats
Knudson, C L. Leonardite char adsorbents. United States: N. p., 1993.
Web.
Knudson, C L. Leonardite char adsorbents. United States.
Knudson, C L. Tue .
"Leonardite char adsorbents". United States.
@article{osti_5398443,
title = {Leonardite char adsorbents},
author = {Knudson, C L},
abstractNote = {A process of preparing lignite (low rank) coal filter material, suitable for use in lieu of more expensive activated carbon filter materials, is disclosed. The process comprises size reducing Leonardite coal material to a suitable filtering effective size, and thereafter heating the size reduced Leonardite preferably to at least 750 C in the presence of a flow of an inert gas. 1 figure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {10}
}
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