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根据石油七厂大庆减压渣油C_3/C_4溶剂脱沥青工业试验结果,对溶剂回收系统提出了“蒸发回收流程”、“临界同收流程”和“临界及蒸发回收流程”三种方案,并进行了技术经济比较。
According to the industrial test results of C_3 / C_4 solvent deasphalting in Daqing Vacuum Oil Residue No.7 Factory, three schemes of “Evaporation Recovery Process”, “Critical Equalization Recovery Process” and “Critical and Evaporation Recovery Process” are proposed for the solvent recovery system Conducted a technical and economic comparison.