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.degree. C. in the presence of a flow of an inert gas.
- Inventors:
-
- Grand Forks, ND
- Issue Date:
- Research Org.:
- Univ. of North Dakota, Grand Forks, ND (United States)
- OSTI Identifier:
- 868970
- Patent Number(s):
- 5254521
- Assignee:
- University of North Dakota Energy and Environment Research Center (Grand Forks, ND)
- 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
- DOE Contract Number:
- FC21-86MC10637
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- leonardite; char; adsorbents; process; preparing; lignite; rank; coal; filter; material; suitable; lieu; expensive; activated; carbon; materials; disclosed; comprises; size; reducing; filtering; effective; thereafter; heating; reduced; preferably; 750; degree; presence; flow; inert; gas; activated carbon; inert gas; process comprises; filter material; carbon filter; thereafter heating; coal material; coal filter; suitable filter; /502/95/423/
Citation Formats
Knudson, Curtis L. Leonardite char adsorbents. United States: N. p., 1993.
Web.
Knudson, Curtis L. Leonardite char adsorbents. United States.
Knudson, Curtis L. Fri .
"Leonardite char adsorbents". United States. https://www.osti.gov/servlets/purl/868970.
@article{osti_868970,
title = {Leonardite char adsorbents},
author = {Knudson, Curtis 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.degree. C. in the presence of a flow of an inert gas.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}
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