Blacksville coal

Coal and Coal with Added Pyrite. In Figure 11 are again presented values for Blacksville coal with additional points representing the pyrrhotites resulting when pyrite has been added to the coal in an autoclave at 400 C and in a miniautoclave at 450°C. The pyrites used are obtained from the Robena Mine, from the Vesta... 

Figure 9. Pyrrhotites from autoclaves (coal only) Blacksville coal with Ht (O) Blacksville coal with synthesis gas (%) Clean Kentucky coal with H2( 3) Clean Kentucky coal with synthesis gas designated coal with synthesis gas (A)-...

Figure 10. Pyrrhotites from autoclaves (coal plus HtS) Blacksville coal with Ht...

Figure 11. Pyrrhotites from autoclaves (coal plus pyrite) Blacksville coal with Ht (O) designated coal with Ht (A) pyrite from Kentucky 11 coal (PY-KY11) pyrite from Robena mine (Py-R) pyrite from Vesta Shannopin mine (Py-VS).

The Pittsburg and Midway Coal Mining Company provided the SRC-II process products that were used as feeds in these studies. They were produced in the Fort Lewis, Washington, pilot plant from a West Virginia coal (Pittsburg Seam, Blacksville No. 2 Mine of the Consolidated Coal Company). 

H-Coal naphthas and distillates derived from Illinois No. 6 (Burning Star Mine) and Wyodak coals were supplied by Hydrocarbon Research, Inc. The naphthas and distillates were blended in the appropriate proportions to obtain a whole syncrude derived from each coal. Properties of these syncrudes are shown in Table I. For comparison, Table I also shows properties of the SRC-II syncrude used in the study described in the previous chapter. The SRC-II syncrude was derived from a West Virginia coal (Pittsburgh Seam, Blacksville No. 2 Mine of the consolidated Coal Company). The H-Coal and SRC-II syncrudes are not directly comparable because the coals used to derive these syncrudes differ. 

The SRC-II liquid was obtained from the Pittsburg and Midway Coal Mining Co. The liquid was produced from Material Balance Run No. 77 SR-12 on coal from the Pittsburg seam from Consol s Blacksville No. 2 Mine in West Virginia. The middle (177-288° C) and heavy (288-454°C) distillates were blended to the same ratio as produced by the material balance run, e.g., 75.5 percent middle distillate and 24.5 percent heavy distillate. The feed contained 0.23 wt-pct sulfur, 1.06 wt-pct nitrogen and 3.29 wt-pct oxygen and boiled between 185 and 380° C (5-95 percent) by simulated distillation. 

Product oils from direct liquefaction of Blacksville Number 2 coal in the 1000 pound per day pilot plant at Pittsburgh Energy Technology Center (PETC) were examined by cyclicvoltammetry. 

Values for a series of coals with synthesis gas are displayed at 425°C, the only temperature at which such pyrrhotite values are available, and are, in order of increasing atom percent iron in the reaction product pyrrhotite, Blacksville 2, Illinois 6, Blacksville 2 with synthesis gas, a cleaned Kentucky 11 coal, Kentucky 9/14, and Kentucky 11. Note that only the point for Kentucky 11 falls into the same range of values as the reactor runs. 

Specimen Scrubber water from experimental liquefaction light oil (PETC, DCD 11, 1979), Pittsburgh Seam, Blacksville 2 coal. pH = 9.1 redox potential = -0.29 volt vs N.H.E. 

Figure 2. Differentiation between liquefaction and gasification by-product waters by pH and redox potential characteristics 1 and 2, waste water PETC coal liquefaction development unit, disposable catalyst, runs DCD 13B and DCD 12 3, waste water, SRC-1 plant 4, scrubber water, light oil, Blacksville No. 2 coal 5, waste water, fixed-bed gasifier, METC 6, waste water, fluidized-bed gasifier, Rosebud coal, PETC 7, gasifier condensate, 40 atm Nt, catalyst-impregnated Illinois 6 coal 8, gasifier condensate, 40 atm He, Montana Rosebud coal.

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