Abstract: The hydro-upgrading technology RCHU developed by SINOPEC Research Institute of Petroleum Processing was applied to the world’s first set of coal liquefaction unit with a capacity of 1.0 Mt/a in China Shenhua Coal to Liquid and Chemical Ordos Coal Liquefaction Company. The sulfur content of naphtha product was lower than 0.5 μg/g and the potential aromatic content was around 68%. For the diesel product, the density（20℃）was in the range of 0.84~0.85 g/cm3 and the sulfur content was lower than 0.5 μg/g. The qualities of the products met the requirements. The unit operated for nearly 9 years with twice regenerations of the catalysts. The long-period of operation indicates that the RCHU technology has a great performance in operation stability.

Key words: direct coal liquefaction, hydro-upgrading, naphtha, diesel