HEAVY CRUDE OIL FEED HYDROGENATION PROCESSING

摘要

FIELD: petroleum processing. ^ SUBSTANCE: heavy crude oil feed is subjected to two-stage hydrogen treatment at elevated temperature and pressure in presence of oxide catalyst in the first stage and oxide zeolite-containing catalyst in the second stage, whereupon gasoline fraction, diesel fraction and upgraded residue are recovered from the catalytic reaction product. Diesel fraction is combined with starting feedstock in amount ranging from 2 to 45 wt %. Volume ratio of first-stage catalyst to second-stage catalyst varies between 1:1 and 1:3. ^ EFFECT: increased quality of target products. ^ 3 cl, 3 ex