800kt/a溶剂脱沥青装置产品方案选择

OPTIONS OF PRODUCTION SCHEMES FOR AN 800 kt/a SOLVENT DEASPHALTING UNIT

研究无重脱油的两产品方案对调合生产道路沥青的影响,实验室调合的各牌号重交通道路沥青满足国家质量标准;选择90号沥青样品进行考察,其SHRP实验沥青结合料性能满足PG64-28的技术标准,其沥青混合料车辙试验结果达到《公路沥青路面施工技术规范》(JTGF40—2004)中夏热区高温车辙性能的规定要求。新建800kt/a溶剂脱沥青装置采用无重脱油的两产品方案,节省了投资和占地面积,简化了操作。装置运行近3年来,各种牌号沥青产品质量合格、轻脱油收率高。

A two-product without heavy deasphalted oil （HDAO） produced production scheme was discussed in this paper, and the effect of two-product scheme on the production of road asphalt was investigated.However, when adopting two-product scheme various kinds of heavy load road asphalts prepared in laboratory could well meet the requirements of domestic specifications. Taking the prepared 90# asphalt as an example, test results showed that its performance of asphalt binder met the requirement of PG64-28 technical criterion; its rutting properties at high temperature of asphalt blend met the requirement of JTGF40--2004 for using in summer at hot climate. Said two-product without HDAO production scheme was adopted in the newly built 800 kt/a solvent deasphaltng unit of Karamay Petrochemical Company, investment and occupied area of the unit were less and the operation was simplified. The unit had been running about 3 years, all the asphalt products were qualified and the yield of light deasphalted oil was high.