| 摘要 |
FIELD: petrochemical processes. ^ SUBSTANCE: liquid pyrolysis products are processed to recover C6-C11-fraction, which is then separated into C6-C8 and C9-C11-fractions. C6-C8-Fraction is subjected to catalytic hydrostabilization and hydrofining. C9-C11-Fraction is hydrostabilized in presence of catalyst and then processed to isolate C10-C11-fraction. C6-C8 and C10-C11-fractions are combined at specified proportion and resulting mixture is subjected to thermal hydrodealkylation. Desired benzene and naphthalene products are recovered from hydrodealkylation product via rectification. High-purity benzene is obtained after fine catalytic posttreatment. ^ EFFECT: increased yield of desired products and service time of hydrostabilization catalyst. ^ 2 cl, 1 dwg, 4 tbl, 10 ex |
