灵活加氢改质技术生产清洁柴油的研究

摘要

针对某企业冬季生产-35#低凝柴油、夏季生产0#柴油的技术需求，开发了冬、夏季灵活生产清洁柴油的加氢精制/改质组合技术。在氢分压6.4 MPa、氢油体积比500：1、总体积空速1.5 h-1和反应温度（315~350）℃条件下，生产的-35#低凝柴油十六烷值达48.2，硫含量1.8μg·g-1；0#柴油十六烷值达53.1，硫含量1.0μg·g-1，产品性质均达到国Ⅴ车用柴油指标要求，冬季和夏季方案生产的柴油产品均可直接作为国Ⅴ车用柴油调和组分，表明研发的柴油加氢改质技术具有灵活性、实用性和先进性。%To meet the demand of producing -35 # low freezing point diesel in winter and 0 # diesel in summer,the hydrogen refining/upgrading combination technology to flexibly produce clean diesel both in winter and summer was developed. Under the operation condition of hydrogen pressure 6. 4 MPa,hydro-gen/oil volume ratio 500:1,space velocity 1. 5 h-1 and reaction temperature(315-350)℃,the cetane number and sulfur content of -35# low freezing point diesel were 48. 2 and 1. 8 μg·g-1,respectively, and the cetane number and sulfur content of 0# diesel reached 53. 1 and 1. 0 μg·g-1,respectively.-35# Low freezing point diesel and 0# diesel could reach the standards of the national V diesel,and could be directly used as diesel blending components,which showed that the developed hydroupgrading technology was flexible,practical and advanced.