以重质洗油为原料，二甲苯为溶剂精制工业芴。
The technical fluorene has been refined from the heavy wash oil with xylene.
焦化蜡油经溶剂精制后，饱和烃含量提高10个百分点左右，氮含量明显降低。
Saturated hydrocarbons content of CGO been increased by about 10 percent points and the nitrogen content decreased significantly after solvent refining.
比较了溶剂精制油、加氢油和合成油所调制的轿车用发动机油（PCMO）各项性能。
The various performances of PCMO formulated from solvent refined oil, hydrogenated base oil and PAO were compared.
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