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NHTDC.长期生产运行数据表明,以硫质量分数为50~350 μg/g、氮质量分数为19~69 μg/g、溴值为20~71 gBr2/(100 g)的DCC汽油为原料,可以生产出硫、氮质量分数小于1 μg/g、溴值小于0. 5 gBr2/(100 g)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 NHTDCtechnology was established for producing aromatic extraction feed from DCC gas-oline. Long term industrial operation showed that the aromatics extraction feed with sulfur and nitrogen content of less than 1 μg/g,bromine value less than 0. 5 gBr2/(100 g)can be obtained by NHTDCtechnolo-gy using DCC gasoline with sulfur content of 50—350 μg/g,nitrogen content of 19—69 μg/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.
展开▼
