Denitrogeneration of Furfural Refining Process of Lube Base Oil Into Which the Assistants is Added
In order to improve the oxidation stability of lube oil, the denitrogeneration refining laboratory scale test and pilotscale experiment had been done systematically for the second and third vacuum side dewaxed oil of No. 1 refinery with the method of complex extraction. The results show that the mixed solvent of furfural and metallic salt can remove the basic nitrogen compounds in dewaxed oil effectively, the basic nitrogen compounds constituents in dewaxed oil were decreased from 432.32 μg/g to 91.99μg/g,the denitrification percent was 78.12％. A fitting operation condition that the No. 1 refinery's third vacuum side dewaxed oil was well extracted with furfural in laboratory was quantity of additive 6 g/kg, refining temperature 118 ℃ ,refining time 20 min, solvent to oil volume ratio 2.0, settling time 30 min. While a fitting operation condition that the refining oil was well extracted with atlapulgite quantity of atlapulgite 2.5％, refining temperature 150℃, refining time 20 min,atlapulgite wasn't torfiyed.
国家科技期刊平台
NSTL
万方数据
维普
