Abstract: The present status, developing trend and engineering research of four dominating residue hydrogenation technologies including fixed bed, ebullated bed, moving bed and slurry bed are presented briefly in this paper, as well as research on the combined process of residue hydrogenation and catalytic cracking. Among these four, fixed bed hydrogenation technology is the most mature, fast developing and being widely use one; ebullated bed and moving bed hydrogenation technologies are becoming mature and popular; as to slurry bed hydrogenation technology, it has completed its commercial trial and in the stage of industrial demonstration. Based on the process characteristics, adoptability to feedstock, requirements of products and operating conditions, some selections of processing schemes from these four hydrogenation technologies are proposed. Besides, to process heavy inferior feedstocks economically, more attention should be paid on the flexible combination of various residue hydrogenation technologies, integrated processes of residue hydrogenation with catalytic cracking and so on in the coming future.

Key words: residue hydrotreating , fixed bed, ebullated bed, moving bed, slurry state bed, combined technique