塔河原油生产高等级道路沥青原料选择与评价

针对西部发展对高等级道路沥青的市场需求及塔河原油生产高等级道路沥青的问题，本文依据塔河炼化现有生产结构，从原料组成和结构、调和沥青性能、混合料性能等方面，开展适宜于生产高等级道路沥青的原料选择对比研究，并通过实际生产对技术方案进行了评价。研究得出，焦化辐射油胶体不稳定指数I_c为0.76，其实沸点大于430℃的渣油PI值较低，闪点满足90A道路沥青要求。塔河原油焦化辐射油适宜于高等级道路沥青生产。并以此设计生产工艺流程，生产出了符合指标要求的高等级道路沥青。满足了西部道路建设的需求。

Raw material selection and evaluation of high-grade road asphalt produced by Tahe crude oil

In view of the market demand for high-grade road asphalt in the development of western China and the problem of producing high-grade road asphalt from Tahe crude oil, according to the existing production system of Tahe refining and chemical company, a comparative study on the selection of raw materials suitable for producing high-grade road asphalt is carried out from the aspects of raw material composition and structure, blending asphalt performance, mixture performance, etc. Moreover, the technical scheme is evaluated by actual production. The results show that the colloidal instability index I_c of coker radiant oil is 0.76, the PI value of residual oil with boiling point ＞430℃ is low, and the flash point meets the requirements of 90A road asphalt. The coker radiant oil from Tahe crude oil is suitable for the production of high grade road asphalt. Based on this, the production process is designed to produce high-grade road asphalt. The asphalt products meet the requirements of the index and the needs of road construction in western China.