KEROGEN STUDY BY THERMAL EXTRACTION ON SO LVENT FLOW

Products of thermal dissolution of kerogens I and II from Kuonam oil-s hales (Eastern Siberia) in supercritical benzene have been studied. Tw o thermal extraction techniques have been applied in an autoclave at 2 75 degrees C (4 hours) and 370 degrees C (2 hours) as well as in flow- type reactor at 275, 370, and 420 degrees C. It was found that the flo w-type reactor remarkably diminishes the secondary cracking of pyrolys ate. The products such produced ale weakly thermal-altered and enriche d in resinous components (RC). The quantity of saturated hydrocarbons produced by the kerogen is controlled by the type of initial organic m atter, whereas aromatic concentration is associated with the secondary reactions of the pyrolisate transformation and increases with tempera ture and time of healing in the high-temperature zone. Kerogen I in th e solvent now produces n-alkans of composition C-11-C-35, whereas kero gen II - C-11-C-27. High-molecular alkyl fragments in kerogen II are s tronger bonded to the RC molecules and begin to eliminate only after a prolonged heating in the auroclave as a result of the secondary destr uction of pyrolysate.