16.石炭液化油の生成物分布に対する触媒活性及び反応条件の影響

抄録

The catalytic activities of carbon-and alumina-supported NiMo catalysts were exmined for the single and two stage liquefactions of Yalluorn coal to compare their product oil distribution and influences of solvent and reaction conditions on the liquefaction efficiency. The NiMo sulfide supported on Ketjen Black (KB) yielded more lighter oil products both in the single and two stage liquefaction than NiMo/alumina catalyst and Fe-based catalyst, reflecting its higher hydrogenation activity for aromatic rings. Non-donOr solvents of 1-methylnaphthalene (1MN) and fluoranthene (FL) exhibited contrast behaviors in the liquefaction efficiency; the former gave the similar oil yield to that with tetralin solvent, while the latter did the lower yield because of its too high hydrogen acceptability. The liquefaction scheme for the higher efficiency is discussed in terms of reaction conditions including catalysts and solvents.