Western Kentucky

Properties. A high volatile western Kentucky bituminous coal, the tar yield of which by Fischer assay was ca 16%, gave a tar yield of ca 26% at a pyrolysis temperature of 537°C (146—148). Tar yield peaked at ca 35% at 577°C and dropped off to 22% at 617°C. The char heating value is essentially equal to that of the starting coal, and the tar has a lower hydrogen content than other pyrolysis tars. The product char is not suitable for direct combustion because of its 2.6% sulfur content. 

U.S. Environmental Protection Agency, 134,162,375 Western Kentucky University, 473 World Health Organization, 162... 

Postdoctoral Research Appointment through Western Kentucky University supported in part by the Swiss National Foundation for Scientific Research. 

As a first case study, we borrow from the modeling work of Rowan (1991), who considered the origin of fluorite (CaF2) veins in the Albigeois district of the southwest Massif Central, France. Production and reserves for the district as a whole total about 7 million metric tons, making it comparable to the more famous deposits of southern Illinois and western Kentucky, USA. 

Sturchio et al. [614] explored the use of Cl isotope ratios for investigating the natural attenuation of trichloroethene (TCE) at a well-characterized field site in western Kentucky and ranking the site in terms of its potential for TCE anaerobic biodegradation. 

Figure 6. SEC of coal liquids using the SEC-GC interface online (Figure 2). Fraction collection timing is similar to one used for Wyodak (Figure k) except for Western Kentucky Synthoil where 2M fractions were collected.

The authors would like to thank Ms. Alicia McDaniel of Western Kentucky University for pertinent consideration of some recent advances. 

Hower, J. C., Finkelman, R. B., Rathbone, R. F. Goodman, J. 2000. Intra- and inter-unit variation in fly ash petrography and mercury adsorption examples from a western Kentucky power station. Energy and Fuels, 14, 212-216. 

Table 7 lists the results of test bums at two coal-combusting power plants a western Kentucky power plant, which burned pure Illinois Basin coal (Table 4) and two blends of this coal + TDF (99 wt% coal + 1 wt% TDF 97 wt% coal + 3 wt% TDF) in a cyclone boiler (Hower et al. 2001) and the Purdue University power plant, which used a stoker boiler to combust a comparable Illinois Basin coal as well as a blend containing 95 wt% of this coal and 5 wt% TDF (Table 4 this study). 

Hower, J. C., Robertson, J. D. Roberts, J. M. 2001. Petrology and minor element chemistry of combustion by-products from the co-combustion of coal, tire-derived fuel, and petroleum coke at a western Kentucky cyclone-fired unit. Fuel Processing Technology, 74, 125-142. 

As rainwater falls, it absorbs atmospheric carbon dioxide. Once in the rainwater, the carbon dioxide reacts with water to form an acid known as carbonic acid, H2C03, which, as we discuss in this chapter, makes rainwater naturally acidic. As the rainwater passes through the ground, the carbonic acid reacts with various basic minerals, such as limestone, to form products that are water soluble and thus carried away by the underground flow of water. This washing-away action over the course of millions of years creates caves.The world s most extensive cave system is in western Kentucky in Mammoth Cave National Park, where more than 300 miles of networked caves have been mapped. 

Figure 9. Distribution of samples of bed No. 5 of Illinois and correlatives of bed No. V of Indiana and bed No. 9 of western Kentucky. Dashed line delineates samples with large amounts of vanadium...

An unusual concentration of vanadium was found in the upper part of bed 9 of western Kentucky and in two samples of its correlative bed 5 of Illinois (20). The distribution of the columnar samples from this bed is shown in Figure 9. The dashed line delineates areas where samples contain high vanadium values. 

Nickel Contents of Cool Samples from Bed 5 Indiana and Western Kentucky ... 

USA Illinois Basin Illinois, Indiana, and Western Kentucky 298 samples... 

A blend from Kentucky seams 9, 11, 12, and 13 which are mined together. Ohio County, Western Kentucky. 

Compound Coal Type Liquid Pittsburgh Illinois No. 6 Western Kentucky Colstrip Wyodak Lignite... 

Pittsburgh 325-425° C Monoaromatic Concentrate Western Kentucky 325-425° C Polyaromatic-Polar Concentrate ... 

For the coal studied here, a bituminous Western Kentucky 9/14 coal, dissolution of the coal has been shown to occur very rapidly, requiring less than 30 minutes to liquefy most of the coal ( 90 percent). However, a relatively long reaction time (120 min.) is required to reduce its sulfur level low enough to meet even the current standards (1). A new short residence time two-stage SRC type process has been suggested by Auburn University (2 ) for solvent refining this coal. This process has been shown to have the potential of producing a low-sulfur solid SRC product that meets the proposed NSPS. It involves the dissolution of the coal... 

Reagents and Materials. Light recycle oil (LRO) and Western Kentucky 9/14 coal were obtained from the Wilsonville SRC Pilot Plant, operated by Southern Company Services, Inc. The LRO contains 0.26% sulfur, and the Western Kentucky 9/14 coal is analyzed to be 67% C, 4.9% H, 3.10% S, and 12% mineral matter. The coal was dried overnight at 100°C and 25 inches Hg vacuum before use. 

The proposed NSPS can be met by hydrotreating the coal liquids obtained by filtering the product from the coal dissolution stage. The desulfurization kinetics can be presented by two parallel first-order rate expression, and hydrogen consumption kinetics can be presented by a first-order rate expression. A linear relationship exists between total sulfur content and SRC sulfur content of the hydrotreated product. For the Western Kentucky bituminous 9/14 coal studied here, the maximum selectivity and lowest SRC conversion to oil for a fixed SRC sulfur content are obtained using the highest reaction temperature (435°C) and the shortest reaction time 7 min.). ... 

Center for Coal Science, Department of Chemistry, Western Kentucky University, Bowling Green, KY 42101... 

Fuel Chemistry Program, SRI International, Menlo Park, CA 94025 Western Kentucky University, Bowling Green, KY 42102 Eniricerche S.p.A., 20097 S. Donato Milanese (MI), Milan, Italy... 

Gene Hiegel, California State University, Fullerton Robert W. Holman, Western Kentucky University Christopher lkediobi, Florida A M University. 

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