West Kentucky 9/14 coal sulfur

The two coals used for the experiments were blends of West Kentucky 9 and 14 seam coals. One blend contained 0.39 weight percent more organic sulfur than the other. Both coals were significantly oxidized before they were received as shown by the appreciable sulfate sulfur contents. Coal analyses are shown in Table 1. 

SRC yields are greater than 100 percent due to the presence of solvent in the SRC. The average SRC prepared from West Kentucky 9/14 coal blends does not meet new source standards for SO2 emissions after the first step of the two-step process although all of the inorganic sulfur and an average 12 percent of the organic sulfur are removed. 

Appalachian Basin WV, PA, OH, E. KY, AL, VA, TN, MD Bituminous 98.7 Widely variable, mostly 0.5 to 5% sulfur. Large quantities of low-sulfur coal occur in the Eastern Kentucky Coal Field and the Southern Field of West Virginia. 

Analyses of the coals tested are given in Table II. Most of the tests were conducted with the 1.6-percent-sulfur Pittsburgh seam coal. Twelve tests were carried out with the 3.1-percent-sulfur West Virginia coal. [This also is a Pittsburgh seam coal, but is referred to as "West Virginia coal" (from Marion County, West Virginia) to facilitate discussion.] Two tests were conducted with the 1.0-percent-sulfur Kentucky coal. 

Kentucky Coal (1.0 Percent Sulfur) and West Virginia Coal (3.1 Percent Sulfur). Two tests were conducted with a Kentucky coal containing 1.0 percent sulfur, and six tests were conducted with a West Virginia coal containing 3.1 percent sulfur. Bag-house temperature was maintained at 400-420°F, and the cycle times were either 15 or 30 minutes. 

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