Figure 1. Scheme illustration of the reactor system for synthesis of pitch at various pressure conditions.
Figure 2. Optical microscopy images of the prepared pitch.
Figure 3. TGA curve of prepared pitch.
Figure 4. DTG curve of prepared pitch.
Figure 5. Weight loss rate of prepared pitch for temperature range.
Figure 6. GC-SIMDIS curve of distillated materials.
Figure 7 Molecular weight distribution of prepared pitch.
Figure 8. Molecular weight segment divided by the pseudocomponent.
Table 1. Comprehensive Information of Reaction Condition
Table 2. Softening Point & Yield of the Prepared Pitch
References
- J. R. Kershaw and K. J. T. Black, Structural characterization of coal-tar and petroleum pitches, Energy Fuels, 7, 420-425 (1993). https://doi.org/10.1021/ef00039a014
- L. F. King and W. D. Robertson, A comparison of coal tar and petroleum pitches as electrode binders, Fuel, 47, 197-212 (1968).
- R. H Wombles and M. D. Kiser, Developing coal tar/petroleum pitches, In: A. Tomsett and J. Johnson (eds), Essential Readings in Light Metals. Springer, 4, 246-250 (2016).
- B. J. Kim, T. Kotegawa, Y. Eom, J. An, I. P. Hong, O. Kato, K. Nakabayashi, J. Miyawaki, B. C. Kim, and I. Mochida, Enhancing the tensile strength of isotropic pitch-based carbon fibers by improving the stabilization and carbonization properties of precursor pitch, Carbon, 99, 649-657 (2016). https://doi.org/10.1016/j.carbon.2015.12.082
- A. Charatte, D. Kocaefe, J. L. Saint-Romain, and P. Couderc, Comparison of carious pitches for impregnation in carbon electrodes, Carbon, 29, 1015-1024 (1991). https://doi.org/10.1016/0008-6223(91)90181-H
- I. Mochida, Y. Korai, C. H. Ku, F. Watanabe, and Y. Sakai, Chemistry of synthesis, structure, preparation and application of aromatic-derived mesophase pitch, Carbon, 38, 305-328 (2000). https://doi.org/10.1016/S0008-6223(99)00176-1
- B. C. Bai, J. G. Kim, J. H. Kim, C. W. Lee, Y. S. Lee, and J. S. Im, Blending effect of pyrolyzed fuel oil and coal tar in pitch production for artificial graphite, Carbon Lett., 25, 75-83 (2018).
- J. G .Kim, J. H. Kim, B. J. Song, Y. P. Jeon, C. W. Lee, Y. S. Lee, and J. S. Im, Characterization of pitch derived from pyrolyzed fuel oil using TCL-FID and MALDI-TOF, Fuel, 167, 25-30 (2016). https://doi.org/10.1016/j.fuel.2015.11.050
- J. G. Kim, J. H. Kim, B. J. Song, C. W. Lee, and J. S. Im, Synthesis and its characterization of pitch from pyrolyzed fuel oil (PFO), J. Ind. Eng. Chem., 36, 293-297 (2016). https://doi.org/10.1016/j.jiec.2016.02.014
- J. G. Kim, J. H. Kim, B. J. Song, C. W. Lee, Y. S. Lee, and J. S. Im, Empirical approach to determine molecular weight distribution using MALDI-TOF analysis of petroleum-based heavy oil, Fuel, 186, 20-23 (2016). https://doi.org/10.1016/j.fuel.2016.08.052
- J. G. Kim, J. H. Kim, C. W. Lee, K. B. Lee, and J. S. Im, Effect of added mesophase pitch during the pitch synthesis reaction of PFO, Carbon Lett., 23, 48-54 (2017).
- R. Santamaria-Ramirez, E. Romero-Palazon, C, Gomez-de-Salazar, F. Rodriguez-reinoso, S. Martinez-Saez, M. Martinez-Esacandell, and H. Marsh, Influence of pressure variations on the formation and development of mesophase in a petroleum residue, Carbon, 37, 445-455 (1999). https://doi.org/10.1016/S0008-6223(98)00211-5
- Y. D. Park and I. Mochida, A two-stage preparation of mesophase pitch from the vacuum pesidue of FCC decant oil, Carbon, 27, 925-929 (1989). https://doi.org/10.1016/0008-6223(89)90043-2
- R. Moriyama, J. Hayashi, K. Suzuki, T. Hiroshima, and T. Chiba, Analysis and modeling of mesophase sphere generation, growth and coalescence upon heating of a coal tar pitch, Carbon, 40, 53-64 (2002). https://doi.org/10.1016/S0008-6223(01)00070-7
- J. D. Brooks and G. H. Taylor, The formation of graphitizing carbons from the liquid phase, Carbon, 3, 185-186 (1965). https://doi.org/10.1016/0008-6223(65)90047-3
- C. Blanco, R. Santamaria, J. Bermejo, and R. Menedez, Separation and characterization of the isotropic phase and co-existing mesophase in thermally treated coal-tar pitches, Carbon, 38, 1169-1176 (2000). https://doi.org/10.1016/S0008-6223(99)00243-2
- H. Shui, Y. Feng, B. Shen, and J. Gao, Kinetics of mesophase transformation of coal tar pitch, Fuel Process. Technol., 55, 153-160 (1998). https://doi.org/10.1016/S0378-3820(98)00038-1
- R. Garcia, J. L. Crespo, S. C. Martin, C. E. Snape, and S. R. Moinelo, Development of mesophase from a low-temperature coal tar pitch, Energy Fuels, 17, 291-301 (2003). https://doi.org/10.1021/ef020109n
- A. Dang, H. Li, T. Li, T. Zhao, C. Xiong, Q. Zhuang, Y. Shang, X. Chen, and X. Ji, Preparation and pyrolysis behavior of modified coal tar pitch as C/C composites matrix precursor, J. Anal. Appl. Pyrolysis, 119, 18-23 (2016). https://doi.org/10.1016/j.jaap.2016.04.002
- I. Mochida, K. Maeda, and K. Takeshita, Structure of anisotropic spheres obtained in the course of needle coke formation, Carbon, 15, 17-23 (1977). https://doi.org/10.1016/0008-6223(77)90069-0
- M. Legin-Kolar, Optical and crystallographic structure of pitch cokes, Carbon, 30, 613-618 (1992). https://doi.org/10.1016/0008-6223(92)90180-5
- H. Yang and R. Luo, Effect of coal tar pitch modified by sulfur as a binder on the mechanical and tribological properties of bronze-impregnated carbon-matrix composites, Mater. Sci. Eng. A, 528, 2929-2935 (2011). https://doi.org/10.1016/j.msea.2011.01.004