Seam coals, pretreated Pittsburgh

Fluid Bed Gasification of Pretreated Pittsburgh Seam Coals... 

Figure 4. Approach to carbon-hydrogen reaction equilibrium for pretreated Pittsburgh seam bituminous coal...

All experiments used chars supplied by the Institute of Gas Technology. Char A was hydrogen-pretreated Pittsburgh Seam, Ireland Mine bituminous coal. Char B was also prepared from a Pittsburgh Seam, Ireland Mine coal pretreated (about 1 ft3 of oxygen/lb of fresh coal at... 

Interferon induction by influenza virus in monkey kidney (LLC-MKj) cell monolayers pre-treated with coal dust was inhibited in relation to coal rank (Hahon 1983). Maximal inhibition of viral interferon induction was noted with high rank coal and the degression of this activity was related to coal s position in the carboniferous series anthracite, bituminous, subbituminous, lignite, and peat. Adsorption of poly(4-vinylpyridine-M-oxide) to bituminous coal dust from the Pittsburgh seam, Cambria County, Pa., not only occurred at a more rapid rate than to cell monolayers, but also less polymer was required to pretreat coal dust than cell mono-layers to achieve comparable amelioration of interferon production (Hahon 1976). 

Particles from a run in which untreated coal was fed were also examined. This coal was from Pittsburgh No. 8 seam but from a different mine—Consolidation Coal Co/s Montour 4 mine. The hydrogasification reaction was conducted entirely in 18 feet of free fall. The run could not be completed because of gradual caking of coal in the feed tube and in the reactor. However, the structure of the residue that was obtained is of interest (Figure 4). It is much more uniform in appearance and reflectance than residues from runs with pretreated coal. Almost all of the particles have a degenerate foam structure—i.e., they are filled with... 

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