Method for the production of an aromate concentrate suitable for use as blending component for gasifier fuel

Abstract From the Canadian patent

In the method for the production of an aromate concentrate suitable for use as blending component for carbuerator fuel, feed hydrocarbon mixtures having boiling ranges substantially between 40 and 170°C are subjected, without any previous separation into individual fractions to, an extractive distillation employing N-substituted morpholine substituents of which display no more than seven C-atoms as, selective solvent. Herewith, the lower boiling non-aromates with a boiling range up to about 105°C practically, completely, and most of the higher boiling non-aromates with a boiling range between about 105 and 160°C are recovered as, raffinate, whereas the aromates which are to be employed in, …