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Catalytic hydrogenation-assisted preparation of melt spinnable pitches from petroleum residue for making mesophase pitch based carbon fibers KCI 등재
- 언어ENG
- URLhttps://db.koreascholar.com/Article/Detail/347743
We demonstrated an effective way of preparing melt spinnable mesophase pitches via catalytic hydrogenation of petroleum residue (fluidized catalytic cracking-decant oil) and their subsequent thermal soaking. The mesophase pitches thus obtained were analyzed in terms of their viscosity, elemental composition, solubility, molecular weight, softening point and optical texture. We found that zeolite-induced catalytic hydrogenation under high hydrogen pressure contributed to a large variation in the properties of the pitches. As the hydrogen pressure increased, the C/H ratio decreased, and the solubility in n-hexane increased. The mesophase pitch with entirely anisotropic domains of flow texture exhibited good meltspinnability. The mesophase carbon fibers obtained from the catalytically hydrogenated petroleum residue showed moderate mechanical properties.
1. Introduction
2. Experimental
2.1. Hydrogenation of biphenyl
2.2. Synthesis of the mesophase pitch
2.3. Characterizations of the petroleumresidue and hydrogenated petroleum residue
2.4. Characterization of the synthesized mesophasepitches
2.5. Carbon fiber preparation andcharacterizations
3. Results and Discussion
3.1. The catalytic hydrogenation of the residue oil
3.2. The synthesis of mesophase pitch
3.3. Melt-spun mesophase pitch carbon fibers
4. Conclusions
Conflict of Interest
Acknowledgements
References
