Physical Sciences and Mathematics Commons^™

Analytical Pyrolysis Of Eastern Shales, Kenneth Naples

Masters Theses & Specialist Projects

The effects of pyrolysis interval, ceiling temperature, heating rate and mesh size on both the pyrolysis yield and relative product distribution for two eastern oil shales (Sunbury and Cleveland) were studied. An extension of the technique of analytical pyrolysis (pyrolysis-gas chromatography) was used. This extension employed a Chemical Data System (C.D.S.) Model 382 Extended Pyroprobe and a C.D.S. Model 310 Concentrator which enabled the pyrolysis products to be collected into a trap system. After completion of a predetermined heating interval, the trap was pulse heated to 250°C and the high and low volatile components were back-flushed into the injection port …

Soil Degradation Of H-Coal Liquid & Various Aromatic Compounds, Kevin Wilson

Masters Theses & Specialist Projects

The common bacterial genera Pseudomonas and Acinetobacter are ubiquitous in most soils and are capable of degrading a large number of chemical compounds. While the degradative pathways of several individual aromatic compounds are known, the degradative pathways of many other aromatic compounds have not yet been elucidated. In addition, very little work has been done on the microbial degradation of coal liquids in the environment.

Previous work at Western Kentucky University has shown that decomposition of Ashland Oil Company's liquified coal can indeed be accomplished by the above bacterial genera in an enriched liquid media. The topic of this thesis …

Dmf Extractability As A Predictor Of Plasticity In Bituminous Coals, Jana Whitt

Masters Theses & Specialist Projects

Plasticity is a phenomenon of certain coals that is not completely understood. Some bituminous coals go through a softening and swelling state upon heating before they re-solidify. It is this softening and swelling state that is labeled as the "plastic state" of the coal. Concurrent with the plastic state of the coal, thermal decomposition of the coal takes place. Several low molecular weight gases are also evolved. These occur at a temperature of approximately 450° C.

The plasticity of a coal is a good indication of the coking ability of a coal. Plastic coals tend to give higher yields in …

Kinetic & Spectral Studies Of Copper(Ii)-4,4',4",4'"-Tetrasulfophthalocyanine In Aqueous Solution, Stephen Scholl

Masters Theses & Specialist Projects

The monomer-dimer equilibrium of CuTSPC^4- was examined by spectral methods in aqueous solution over a total dye concentration of 2 x 10^-8M to 8 x 10^-7M at 24°C. The value obtained for the dimerization constant, KD,was 1.1 x 10⁷M^-1 which is smaller than literature values. However, the discrepancy is not appreciable considering the differences in the methods used and the experimental conditions of the different solutions. Spectral measurements of the dimerization constant were made at only one temperature since the spectral changes were quite small when the temperature was varied. This observation …

Analytical Pyrolysis Of Eastern Oil Shales, Lizbeth Sturgeon

Masters Theses & Specialist Projects

The Sunbury shale and the Cleveland member of the Ohio shale were studied utilizing the technique of analytical pyrolysis (pyrolysis gas chromatography). The effects of ceiling temperature, heating rate, and pyrolysis interval on the pyrolysis yield and relative product distribution for these eastern oil shales were observed. Carefully monitored pyrolysis of the shale allows separation of high and low volatile components and measurement of the relative peak areas in the pyrogram provides the yield of the high and low volatile fractions. Linear temperature ramps of 5000, 2000, and 100°C per second were employed. Ceiling temperatures of 450°C to 950°C and …