IMPROVEMENT MEASURES  OF SLURRY FRACTIONATION SYSTEM IN SLURRY BED HYDROTREATING UNIT

Abstract

Abstract: To maximize the utilization of crude oil resources, the efficient processing of residue oil is of paramount importance. Slurry bed residue oil hydrogenation technology, due to its high conversion rate, is regarded as a critical pathway for the upgrading of inferior heavy residue oil. Based on the operational performance of three 3.0 Mt/a slurry bed residue oil hydrogenation units (A, B, and C), an analysis of the process design characteristics of the slurry fractionation system was conducted. From perspectives such as the design of the slurry fractionation system, control of the primary reaction conversion rate, optimization of operational parameters, and selection of internal equipment components, optimization strategies for the long-term stable operation of the slurry fractionation system were proposed. After implementing these optimization strategies, the slurry fractionation system has experienced no spiral plate leakage over extended periods, and the separation efficiency of products has improved. Consequently, the slurry bed residue oil hydrogenation unit can achieve long-term stable operation.

Key words: residue hydrotreating, slurry fractionation system, coking, vacuum tower

References

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IMPROVEMENT MEASURES OF SLURRY FRACTIONATION SYSTEM IN SLURRY BED HYDROTREATING UNIT

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