Abstract
Traditional processing technology is not suitable for Tahe crude oil due to its low light distillate yield and poor quality. A new process, atmospheric flash evaporation-solvent deasphalting combined process, was put forward. The appropriate operating conditions of solvent deasphalting process were as follows: iso-pentane solvent, temperature of 175°C, pressure of 3.7MPa, solvent volume ratio of 5.0. Compared with atmospheric distillation-delayed coking process, total liquid product yield by new process could reach 78.77%, increasing by 9.47%. The quality of deasphalting oil met the feed requirements for catalytic cracking and de-oiled asphalt could be used as asphalt mixture additives.