Distillation hydroprocessing units

PDU Operation - Current Study. This paper will present the results of several alternate processing modes utilizing the expanded catalyst bed (LC-Finer) for hydroprocessing coal extracts. Neither distillate yield nor C -C4 gas yield data from either the SRC unit or the SCT thermal step of the TSL process have been included in this analysis. The specific PDU runs are as follows ... 

In the past few years the residue hydrodesulfiirization process has gone through a number of changes. Deeper desulfurization and more conversion to mid-distillate have become a primary target for several units. At the same time, heavier residues are being processed. To address these and other questions, Nippon Ketjen has developed a new series of resid catalysts, viz. the KFR series. The two most common modes of resid hydroprocessing applied on commercial scale, are illustrated with pilot plant test data and data from commercial units. 

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