DCC汽油加氢生产芳烃抽提原料技术(NHT^(DC))的开发及应用

DEVELOPMENT AND COMMERCIAL APPLICATION OF NHT^(DC) TECHNOLOGY TO PRODUCE AROMATIC EXTRACTION FEED FROM DCC GASOLINE

通过对DCC汽油性质的深入分析,中国石化石油化工科学研究院开发了DCC汽油加氢生产芳烃抽提原料技术NHT^(DC)。长期生产运行数据表明,以硫质量分数为50~350μg/g、氮质量分数为19~69μg/g、溴值为20~71gBr_2/(100g)的DCC汽油为原料,可以生产出硫、氮质量分数小于1μg/g、溴值小于0.5gBr_2/(100g)的满足芳烃抽提装置进料要求的产品,并且在DCC汽油硫含量、氮含量和溴值变化较大的情况下,产品质量基本保持稳定,装置可长周期稳定运转,可以满足芳烃抽提装置对进料的要求。

The properties and hydrocarbon composition of DCC gasoline were investigated.Based on the results,the NHT DC technology was established for producing aromatic extraction feed from DCC gasoline.Long term industrial operation showed that the aromatics extraction feed with sulfur and nitrogen content of less than 1μg/g,bromine value less than 0.5 gBr 2(100 g)can be obtained by NHT DC technology using DCC gasoline with sulfur content of 50-350μg/g,nitrogen content of 19-69μg/g and bromine value of 20-71 gBr2/(100 g).The product quality can maintain stable and the unit can run steadily,even if the sulfur content,nitrogen content and bromine number of material varies in a large range.