Hydrothermally treated coals for pulverized coal injection. Final technical report

This project investigated the suitability of hydrothermally dried low-rank coals for pulverized fuel injection into blast furnaces in order to reduce coke consumption. Coal samples from the Beluga coalfield and the Usibelli Coal Mine, Alaska, were used for the study. Crushed coal samples were hydrot...

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Bibliographic Details
Main Authors: Walsh, D.E., Rao, P.D., Ogunsola, O., Lin, H.K.
Other Authors: United States. Department of Energy.
Format: Report
Language:English
Published: University of Southern California, Los Angeles, CA (United States). Law Center 1995
Subjects:
Coal Preparation
Combustion
Subbituminous Coal
01 Coal
Lignite
And Peat
Drying
Coke
Pulverized Fuels
Calorific Value
Blast Furnaces
Moisture
Porosity
Vitrinite
Beluga
Beluga*
Alaska
Online Access:https://doi.org/10.2172/212741
http://digital.library.unt.edu/ark:/67531/metadc668036/
Description
Summary:This project investigated the suitability of hydrothermally dried low-rank coals for pulverized fuel injection into blast furnaces in order to reduce coke consumption. Coal samples from the Beluga coalfield and the Usibelli Coal Mine, Alaska, were used for the study. Crushed coal samples were hydrothermally treated at three temperatures, 275, 300 and 325{degrees}C, for residence times of 10, 60 and 120 minutes. Products were characterized to determine their suitability for pulverized coal injection. Characterization included proximate and ultimate analyses, vitrinite reflectance and TGA reactivity. A literature survey was also conducted.

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