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Title: 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}
}