抄録
The additive effect of phenol on the denitrogenation of the chloroform soluble-benzene soluble (CSBS-1) and the chloroform soluble-benzene insoluble (CSBI-1) in the 1st liquid derived from Akabira coal was investigated by the hydrogenolysis reactions using sulfided Ni-Mo/Al2O3 catalyst. Further, the heavy oil in the liquid from Miike coal was separated into acidic, neutral and basic fractions by ion-exchange chromatography, and the additive effect of phenol on their respective hydrodenitrogenation (HDN) and hyd-rodeoxygenation (HDN) was also studied.
The denitrogenation in the 2nd liquids produced by adding 2.5 and 10% of phenol to CSBS-1 at 420°C increased and decreased than that in the non-addition, respectively. Phe-nol addition was not effective in the HDN of CSBI-1 of preasphaltene.
Phenol addition to the heavy acidic or basic oil was not effective in the HDN and HDO of the basic oil, but of the acidic oil. This is because both phenol and acidic oil raise the acidity of the catalyst, and the basic oil adsorbs on the acidic site of the catalyst more pre-ferentially and strongly than phenol.
