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U.S. Department of Energy
Office of Scientific and Technical Information

Releases of coal liquefaction products in inland waters

Technical Report ·
OSTI ID:5207797
Chemical and physical differences between coal-derived oils (especially those produced by direct liquefaction processes) and crude or refined petroleum would result in significant differences in the behavior of the oils after release into rivers or lakes. Phenolic compounds are abundant in many coal liquids but not in petroleum; these compounds dissolve rapidly in water and are toxic to aquatic life. Polycyclic aromatic hydrocarbons, aromatic amines, and other insoluble oil constituents could accumulate in bottom sediments, from which they could be taken up by organisms and cause long-term ecological effects. Through laboratory studies, simulation modeling, and field experiments, information has been developed that supports a preliminary evaluation of the potential environmental impacts of coal liquid spills. Releases of crude products into large rivers would probably cause relatively little immediate ecological damage, but spills in lakes, embayments, and other semienclosed water bodies could have serious effects. Product upgrading by hydrotreatment or distillation can be expected to reduce the environmental hazards of coal-derived oils.
Research Organization:
Oak Ridge National Lab., TN (USA)
DOE Contract Number:
AC05-84OR21400
OSTI ID:
5207797
Report Number(s):
ORNL/TM-9535; ON: DE86001467
Country of Publication:
United States
Language:
English