LIQUEFACTION OF KUKERSITE CONCENTRATE
AT 330-370 °C IN SUPERCRITICAL SOLVENTS
H. LUIK
| I. KLESMENT |
| The action of lower aliphatic and aromatic hydrocarbons and their mixtures with water on
kukersite conversion to liquid products in autoclaves was studied. The effect of methanol or
formate as hydrogen donor and zinc dust on the yield and composition of liquid products obtained
was investigated as well. The amounts of organic matter dissolved by individual solvents only
slightly differed, but the exchange of the part of solvent for the same amount of water in all
cases resulted in increasing the oil yield. The latter is strongly dependent on the temperature,
reaction time, type of solvent, and the concentration ratio of solvent to water. Using benzene-
water mixtures and varying liquefaction parameters, almost complete conversion of kukersite into
liguid product was achieved. The oils obtained by liquefaction are heavy characterized by a high density and molecular weight and a great content of asphaltenes. Kukersite liquefaction by in situ hydrogen generation, using methanol and zinc-water reaction system, resulted in a considerable decrease in the content of asphaltenes and heteroatoms. |