A new fluid-bed hydrodealkylation process of heavy aromatic oils against high content of coke deposit
- Fuji Oil Co., Tokyo (Japan)
Recently, the significance of chemical grade naphthalene and {beta}-methylnaphthalene as base materials for synthesis has been increasing, and it seems important to establish a rational process to dealkylate heavy aromatic oils. In this presentation, a new hydrodealkylation process with a fluid-bed reactor and its reaction performance in dealkylation of LCO are described. With this process, even an heavy aromatic oil containing substantial amount of poly-cyclic aromatics, polyalkylated aromatics and impurities such as sulfur and nitrogen compounds can be directly processed, and dealkylation with sufficient desulfurization and denitrogenation proceeds stably by a selected catalyst in the presence of coke deposited on it. This process and its concept are also applicable to dealkylation of heavy polyalkyl benzen, coal tar, or other heavy aromatic oils. The fluid-bed reaction analysis for a consecutive dealkylation reaction and the catalyst reactivity under coke deposition are described and discussed.
- OSTI ID:
- 215012
- Report Number(s):
- CONF-950801--
- Country of Publication:
- United States
- Language:
- English
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