TAR DEWAXING PLANT Russian patent published in 2017 - IPC C10G73/02 C10G73/36 C10G9/36 

FIELD: chemistry.

SUBSTANCE: plant consists of the heat exchanger, the separator, the units of vacuum fractionation, thermal conversion and fractionation, and the cracking furnace, equipped with the feeding line, the bituminous raw material output line, the gas line, the light fractions line, as well as process lines. During the plant work, the raw material through the heat exchanger is supplied into the separator after mixing with the residue and vapour part of thermal conversion. The separation vapour is fed into the fractionation unit, and the residue - into the vacuum fractionation unit; the waxy gas oil obtained is fed to the thermal conversion unit, and the bitumen raw material is removed from the plant. The heavy gas oil from the fractionation unit through the cracking furnace is fed to the thermal conversion unit, where, together with the paraffinic gas oil is, subjected to thermal conversion with obtaining vapours fed into the fractionation unit and a residue. Heavy gas oil, light fractions and gas which is removed from the plant are ectracted from the vapour mixture in the fractionation unit.

EFFECT: obtaining raw bitumen material from tar with a high wax content.

1 dwg