Abstract
Physical properties and chemical composition of oils produced from a master sample of the Ohio Shale by bench scale fluid bed and Fischer Assay retorting are compared. The fluid bed oil was found to have a higher nitrogen content, lower H/C ratio, more heteroaromatic and heavy hydrocarbons, higher alkene/alkane ratios, a higher naphthalene/(C/sub 11/ + C/sub 12/) ratio and a higher aromatic carbon content than the Fischer Assay oil. Since vapor phase cracking is the major source of oil loss during fluid bed retorting with coking being near zero, these results are in agreement with correlations developed for western U.S. shales. Additionally, there is evidence to suggest that under fluid bed conditions, raw shale aromatic carbon is converted to oil.
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