West Virginia subbituminous coal

USA Appalachians West Virginia Raymond (Pittsburgh) coal bed USA Arizona Black Mesa field subbituminous—bituminous 11 samples USA Gulf Coast Texas, Arkansas, and Alabama lignites 141 samples... 

Figure 1. GPC separation of SRC from West Virginia subbituminous coal. The GPC system consisted of four 100 A n Styragel columns and the THF flow rate of 1 mL/min.

Figure 3. GPC of the THF extract of SO 2-insolubles of SRC from West Virginia subbituminous coal. See Figure 6 for the GC-MS of the extract and Table HI for the identification of the components.

Figure 6. Total ion gas chromatogram of the THF extract of S02-insoluble of SRC from West Virginia subbituminous coal. GC conditions were same as in Figure 4 except the temperature program of 80° to 270° C at 4°/min. See Table III for...

---