| 摘要 |
FIELD: oil refining; production of paving bitumen from oil residues of vacuum distillation of high-paraffin oils. ^ SUBSTANCE: mazut of high-paraffin oil is subjected to high vacuum distillation for obtaining residues boiling-out at temperature above 510-540°C. Residues thus obtained are subjected to moderate visbreaking. Residues of visbreaking are subjected to vacuum distillation after separation of gas, gasoline and light distillate fractions for obtaining bitumen in form of residues boiling-out at temperature above 440-525°C. ^ EFFECT: extended field of raw materials due to involving material not suitable for reworking into bitumen. ^ 4 cl, 1 tbl, 13 ex |
