SBS改性道路沥青的研制

辽曙一区高粘度原油密度大(ρ=0.997cm-3)、粘度大(V80=5647.3mm2/s)、凝点(48℃)高,属于低硫环烷基原油.该原油无汽油馏分,柴油馏分收率也很低,仅占7.19%,重油馏分不适合做润滑油原料也不适合做催化裂化原料,而且渣油馏分亦不宜做催化裂化原料.但此油的蜡含量比较低,胶质、沥青质含量高,是生产优质高等级道路沥青的优质原料.以辽曙一区原油渣油为基础组分,采用炼厂富芳贫蜡的润滑油下脚料做为增塑剂,研制出了符合交通部JTJ036-98技术要求的SBS改性高等级道路沥青产品,并对其路用性能进行了探讨.结果表明所研制的改性沥青具有很好的低温性能和抗老化性能.

Development of SBS Modified High Grade Paving Asphalt

The high viscous crude oil from Shuguang No.1 zone of Liaohe oilfield has the characteristics of high density, high viscidity and low wax content. It contains no gasoline fraction ,and diesel oil fraction yield is just 7.19%, which belongs to low sulfur naphthene-base crude oil. Its lubricating oil fraction is not suitablefor producing lubricating oil. Its heavy oil is rich in resin and asphaltene, but lacking of wax, is not good a feedstock for catalytic cracking, but is the ideal raw material for producing high grade paving asphalt. Now the SBS high grade paving asphalt product according with JTJ036-98 technical standard issued by Traffic Ministry has been developed by using waste oil from Liaohe oilfield crude as blender, and using waste from producing lubricating oil which is rich in aromatics and poor in wax as stablizer. The performance of modified SBS has been investigated . The laboratory test results show that this modified asphalt has good low-temperature performance and anti-aging feature.