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介绍了C4溶剂脱沥青技术的基本原理及主要内容，分析了应用C4溶剂脱沥青技术在提高产品收率、降低能耗，简化工艺流程等方面取得的成效，提出了技术应用范围和建议。
The basic principle and main contents of C4 solvent deasphalting technology are introduced. The application of C4 solvent deasphalting technology in improving product yield, reducing energy consumption and simplifying the process flow is analyzed. The application range and suggestions are put forward.