硬质道路沥青的不同制备技术

doi:10.16085/j.issn.1000-6613.2017-0386

化工进展 ›› 2017, Vol. 36 ›› Issue (12): 4554-4561.DOI: 10.16085/j.issn.1000-6613.2017-0386

硬质道路沥青的不同制备技术

仝玉军, 沈本贤, 刘纪昌

华东理工大学化学工程联合国家重点实验室, 上海 200237

收稿日期:2017-03-09 修回日期:2017-04-27 出版日期:2017-12-05 发布日期:2017-12-05
通讯作者: 沈本贤,教授,博士生导师,主要研究方向为油气深度加工和长输管线节能技术、清洁燃料技术、绿色化工。
作者简介:仝玉军(1989-),男,博士研究生,主要从事重油加工工艺和石油沥青产品研究开发工作。E-mail:yjtongcareer@163.com。
基金资助:
国家自然科学基金项目（21476082）。

Preparation and evaluation of hard asphalts by different process

TONG Yujun, SHEN Benxian, LIU Jichang

State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China

Received:2017-03-09 Revised:2017-04-27 Online:2017-12-05 Published:2017-12-05

摘要/Abstract

摘要： 以伊朗重质渣油为原料，对其采用减压深拔、溶剂脱沥青、溶剂脱沥青+调和组合工艺制备30^#硬质道路沥青可行性进行考察。结果表明，减压深拔和溶剂脱沥青+调和工艺用来制备硬质道路沥青较为适宜。采用减压蒸馏工艺较为简单，适当提高蒸馏深度即可制备满足GB/T 15180—2010技术要求的30^#硬质道路沥青，轻馏分油收率可增加8.1%；单独采用溶剂脱沥青工艺制备30^#硬质沥青，尽管能制备出满足指标的30^#硬质沥青，但脱沥青油收率较低，仅为6.6%～16.0%，经济效益较差；采用溶剂脱沥青+渣油（高标号沥青）调和工艺，可以制备出高低温性能较优的30^#硬质沥青，适宜的操作条件为：丁烷为溶剂，抽提塔塔温度107℃，抽提压力3.8MPa，剂油质量比为2.9，此时脱沥青油收率为41.2%，残炭小于8%，金属含量小于30μg/g，满足催化裂化进料要求；硬质脱油沥青软化点为105.4℃，针入度为0，适宜的调和软组分选择春风渣油和90^#沥青。沥青混合料试验表明，相比70^# A级道路沥青，30^#硬质沥青混合料具有良好的抗车辙性能和水稳定性能，基本能够达到改性沥青的效果，可将其用于沥青路面的中下面层提高路面的抗车辙能力。

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

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.

Key words: hard road asphalt, vacuum distillation, solvent deasphalting, blending process, asphalt mixture

中图分类号:

TE624.5

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.

TONG Yujun, SHEN Benxian, LIU Jichang. Preparation and evaluation of hard asphalts by different process[J]. Chemical Industry and Engineering Progress, 2017, 36(12): 4554-4561.

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硬质道路沥青的不同制备技术

Preparation and evaluation of hard asphalts by different process

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