초록

A slurry hydrotreating process is described in which a hydrotreating catalyst of small particle size is contacted with a heavy fossil fuel. High catalyst activity is maintained by circulating the catalyst between a hydrotreating zone and a reactivating zone where the catalyst is hydrogen stripped.

대표청구항 ▼

A slurry hydrotreating process for hydrotreating a heavy fossil fuel to hydrogenate heavy aromatics and remove sulfur, the process comprising: reacting the heavy fossil fuel in a hydrotreating zone with hydrogen in the presence of a non-noble metal containing hydrotreating catalyst; separating the c

A slurry hydrotreating process for hydrotreating a heavy fossil fuel to hydrogenate heavy aromatics and remove sulfur, the process comprising: reacting the heavy fossil fuel in a hydrotreating zone with hydrogen in the presence of a non-noble metal containing hydrotreating catalyst; separating the catalyst from the product of the hydrotreating zone; reactivating the catalyst in a reactivating zone, separate from the hydrotreating zone, by hydrogen stripping; and recycling the reactivated catalyst to the hydrotreating zone.