Abstract: The properties and hydrocarbon composition of DCC gasoline were investigated. Based on the results, the NHTDC 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 gBr2/ (100 g) can be obtained by NHTDC 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.

Key words: DCC gasoline, hydrotreating, aromatic extraction, development, application