化工进展2017，Vol.36Issue(12)：4554-4561,8.DOI:10.16085/j.issn.1000-6613.2017-0386
硬质道路沥青的不同制备技术
Preparation and evaluation of hard asphalts by different process
摘要
Abstract
Preparation and evaluation of 30# hard road asphalts by vacuum distillation,solvent deasphalting,combination of solvent deasphalting and blending process for Iran residue were investigated. The results showed that,30# hard road asphalt was prepared and met technical requirements of GB/T 15180—2010 by raising the distillation depth,and the yield of light distillate increased by 8.1%. 30# hard asphalt could be prepared by solvent deasphalting process,while the DAO yield was so low,about 6.6%~16.0%,that resulted in poor economic benefits. The combination of solvent deasphalting and blending process was used to produce 30# hard asphalt with good performance at high and low temperature,and the suitable operating conditions were as follow: butane of solvent,extraction tower temperature of 107℃,extraction pressure of 3.8 MPa,solvent-oil ratio of 2.9(mass ratio),DAO yield was 41.2%. The carbon residue content and metal content of DAO were less than 8% and 30μg/g, respectively,and met the requirements of FCC feedstock. The softening point and penetration of hard DOA were 105.4℃ and 0,respectively,and the Chunfeng residue and 90# asphalt were appropriate as soft components of blending process. The results of mix performance tests indicated that, compared with 70# asphalt,30# hard asphalt mixture had very good anti-high temperature deformation ability,good water stability,and had the same effect of modified asphalt. Its applications on surface of the middle and lower layer road would improve the pavement anti-rutting ability.关键词
硬质道路沥青/减压蒸馏/溶剂脱沥青/调和工艺/沥青混合料Key words
hard road asphalt/vacuum distillation/solvent deasphalting/blending process/asphalt mixture分类
能源科技引用本文复制引用
仝玉军,沈本贤,刘纪昌..硬质道路沥青的不同制备技术[J].化工进展,2017,36(12):4554-4561,8.基金项目
国家自然科学基金项目(21476082). （21476082）
