Hydrothermally treated coals for pulverized coal injection. [Quarterly] technical progress report, January--March 1995

• Main Authors: Walsh, D.E., Rao, P.D., Ogunsola, O., Lin, H.K.
• Language: unknown
• Published: 2009
• Subjects: 01 COAL; LIGNITE; AND PEAT; BLAST FURNACES; PULVERIZED FUELS; SUBBITUMINOUS COAL; DRYING; CHEMICAL ANALYSIS; PROGRESS REPORT; COAL RANK; HYDROTHERMAL ALTERATION; THERMAL GRAVIMETRIC ANALYSIS; EXPERIMENTAL DATA; Beluga; Beluga*; Alaska
• Online Access: http://www.osti.gov/servlets/purl/106672; https://www.osti.gov/biblio/106672; https://doi.org/10.2172/106672

This project is investigating 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 coal field and the Usibelli Coal Mine, Alaska, are being used for the study. Crushed coal samples were hydrothermally treated at three temperatures, 275, 300 and 325{degrees}C, for residence times ranging from 10 to 120 minutes. Products are being characterized to determine their suitability for pulverized coal injection. Characterization includes proximate and ultimate analyses, vitrinite reflectance and TGA reactivity. A literature survey is being conducted.