||Furnace sorbent reactivity testing for control of SO-b2-s emission from Illinois coals /
Gullett, Brian Kent, ;
Briden, F. E.
||Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab. ;Center for Research on Sulfur in Coal, Champaign, IL.
Coal--Environmental aspects--Illinois. ;
Sulfur dioxide--Environmental aspects. ;
Air pollution control ;
Sulfur dioxide ;
Combustion products ;
Calcium hydroxides ;
Pilot plants ;
Experimental design ;
Performance evaluation ;
Molecular structure ;
X ray diffraction ;
Acid rain ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||viii, 57 pages : illustrations
The report gives results of ana evaluation of the potential of furnace sorbent injection (FSI) for sulfur dioxide (SO2) emission control on coal-fired boilers burning coals indigenous to Illinois. Tests were run using four coals from the Illinois Basin and six calcium hydroxide (Ca(OH)2) sorbents, including one provided by the Illinois State Geological Survey (ISGS). The evaluation included pilot- and bench-scale sorbent reactivity testing, sorbent microstructure characterization, and injection ash characterization. Pilot-scale FSI testing gave SO2 removal greater than 60%, with some tests (including those with the ISGS sorbent) exceeding 70% removal for Ca/S ratios of 2:1. Bench-scale testing of injection at economizer temperatures (538 C) yielded comparable removals of about 55%. X-ray diffraction (XRD) tests of the sorbents showed a strong correlation between three measured crystallite microstructural parameters and sorbent reactivity in the FSI tests. Extraction procedure (EP) toxicity tests with the sorbent injection ash gave values well below Resource Conservation and Recovery Act (RCRA) limits for regulated metals.
"Report date December 1989." "Report no. EPA/600/2-89/065." "Final report." Microfiche.