曹妃甸减压渣油综合利用的研究

STUDY ON COMPREHENSIVE UTILIZATION OF CAOFEIDIAN VACUUM RESIDUE

对曹妃甸减压渣油进行了综合利用研究。对该减压渣油进行丙烷脱沥青处理,得到脱油沥青和脱沥青油。将脱油沥青与绥中36-1减压馏分油的糠醛精制抽出油调合后,可生产满足GB/T 15180—2010技术要求的重交通道路沥青;将脱沥青油经加氢处理-蒸馏-加氢异构/加氢补充精制-蒸馏的组合工艺处理,生产的各馏分油的芳烃、硫、氮含量均极低,280～380℃馏分可作为优质溶剂油的原料,380～460℃馏分可作为APIⅡ类润滑油基础油,460℃以上馏分可以作为APIⅢ类润滑油基础油。

A comprehensive utilization for propane deasphalting process of Caofeidian vacuum residue was researched. The heavy-duty paving asphalt can be produced from the mixture of the de-oiled asphalt from Caofeidian vacuum residue and the furfural extract oil from vacuum residue of SuiZong-361 crude. The quality of the paving asphalt product satisfies with the national standard GT/T 15180-2000. Several cuts with very low content of aromatics, sulfur and nitrogen can be obtained from the deasphalted oil of Caofeidian vacuum residue by the processes consisting of hydrotreating-distillation-hydroisomerization/hydrofinishing. Among of them, the fraction of 280-380 ℃ can be used as high quality solvent, the fraction of 380-460 ℃ and the fraction of 〉460 ℃ can meet the standard of API Ⅱ and API Ⅲ base oil, respectively.