ABSTRACT
Although most petroleum products can be used as fuels, the term fuel oil, if used without qualification, may be interpreted in various ways. For example, the term fuel oil may be associated with the black, viscous, residual material that remains as the result of refinery distillation of crude oil, either alone or in a blend with lowerboiling components, and which is used for steam generation for large slow-speed diesel engine operation and industrial heating and processing. Alternatively, the term fuel oil is applied to both residual and middle distillate type products such as domestic heating oil, kerosene, and burner fuel oils.
