| 초록 |
To synthesize pitches, pyrolysis fuel oil (PFO) and fluidized catalytic cracking-decant oils (FCC-DO) was heat treated according to treatment temperature and time. The pitches were characterized by measuring their elemental composition, chemical structure of components, molecular weight distribution, and softening point. The elemental composition and chemical structure was analyzed by element analyze (EA) and Fourier transform infrared (FT-IR). The molecular weight distribution was analyzed by matrix associated laser desorption ionization - time of flight mass spectrometry (MALDI-TOF). The FT-IR spectra demonstrated that the intensities of the aromatic C–H bonds at 1600 and 3030 cm-1 of the pitches significantly increased and the intensity of the stretching vibration of the C–H bond at 2920 cm-1 decreased with an increase in heat treatment time. |
