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Abstract
Removal of the basic nitrogen compounds from diesel oil by using ferric chloride as complexing agent was studied. The influence of affect factors on treating conditions was investigated, and orthogonal tests were done to conform the optimum process condition. The results showed that the optimum condition was that of the volume ratio of complexing agent to oil was 1.0, stirring time was 25 min, resting time was 40 min, and reaction temperature was 330 K. Under this optimum condition, the basic nitrogen compounds in diesel oil were reduced from 85.79 μg/g to 3.52 μg/g, and removal rate reached 95.9%.