Christian Bernasconi, Alain Faure, Bernard Thibonnet: Homogeneous and stable composition of asphaltenic liquid hydrocarbons and additive useful as industrial fuel. Elf France, Burgess Ryan & Wayne, November 11, 1986: US04622047 (7 worldwide citation)

Industrial fuels comprised of mixtures of asphaltenic heavy hydrocarbon fractions and light fractions are provided wherein the flocculation of asphaltenes is minimized by the addition of from 50 to 5000 ppm of an additive composed of a constituent A and/or a constituent B to render the composition h ...