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    Resid hydrotreating

    Resid hydrotreating

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    Profit from converting resid into gasoline and diesel fuel.

    Traditionally, the primary objective in resid hydroprocessing was production of low-sulfur fuel oil (LSFO); i.e. desulfurization was the main objective. With the market for residual oil declining, and the demand for light transportation fuels on the rise, refiners can profit from converting resid into gasoline and diesel fuel. One important route for the conversion of resid into lighter transportation fuels is a combination of hydrotreating and resid fluid catalyst cracking (RFCC). Obviously, the demands on the catalyst system vary according to the processing objectives and will affect the choice of catalysts to be installed in the unit.

    Topsoe offers a range of fixed-bed resid hydrotreating catalysts for plants wanting to produce either LSFO or pretreated feed for an RFCC unit. Our hydrodemetallization (HDM) and hydrodesulfurization (HDS) catalysts deliver outstanding metals pickup and hydrogenation activity, ensuring long cycle lengths and maximum protection of downstream catalysts. It all adds up to more cost-effective compliance with product specifications and environmental standards.

    Determining the optimal ratios of each catalyst type is important for obtaining a long cycle length while meeting the desired product properties. The optimal ratio will vary from unit to unit and will depend strongly on feedstock properties, operating conditions, and product requirements.

    Our resid hydrotreating catalysts can be divided into the following three functionalities:

    • Hydrodemetallization (HDM)

      • HDM catalysts protect the downstream catalysts from rapid deactivation caused by excessive amounts of nickel and vanadium. The HDM catalysts are especially designed for operating in guard reactors and/or the first part of the reactor train, where the concentration of metals in the feed is high. The unique pore system of the HDM catalysts ensures that metals accumulate deep within the pores, giving a high HDM activity and superior tolerance and capacity for metals deposition.

    • Transition

      • Transition catalysts are installed in the middle part of the reactor train for optimal protection of the HDS catalyst against deactivation caused by metals in the feed. Transition catalysts have properties in between those of HDM and HDS catalysts with respect to hydrogenation activity, metals pick-up capacity and metals tolerance.

    • Hydrodesulfurization (HDS)

      • HDS type catalysts are the work horses of the resid hydrotreating catalyst system with respect to hydrogenation of sulfur and nitrogen compounds and removal of Conradson Carbon Residue.

    Resid hydrotreating catalysts

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    TK-719 catalyst

    TK-719 is a high-porosity demetallization catalyst for fixed-bed resid service. The catalyst is applied in the front-end of resid hydrotreaters due to its enhanced ability to remove metals and ...
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    TK-743 catalyst

    TK-743 is a demetallization catalyst with moderate hydrodesulfurization (HDS) activity for fixed-bed resid service and vacuum gas oil (VGO) hydrotreating.
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    TK-753 catalyst

    TK-753 is a transition catalyst in fixed-bed resid hydrodesulfurization (HDS) systems. In such applications, it would be preceded by a hydrodemetallization (HDM) type catalyst and followed by a ...
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    TK-773 catalyst

    TK-773 is a final-stage catalyst for fixed-bed resid hydrodesulfurization (HDS) units. It has a high HDS, hydrodenitrogenation (HDN) and Conradson Carbon Residue (CCR) removal activity and, as ...

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    Applications within this area

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    Ensure long cycle lengths and maximum protection of downstream catalysts with our hydrodemetallization (HDM) and hydrodesulfurization (HDS) catalysts.

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    Co-processing for kerosene hydrotreating

    Discover the benefits of choosing renewable co-processing in your kerosene hydrotreater for SAF production.

    Co-processing for diesel hydrotreating

    Produce renewable and fossil diesel through co-processing of renewable feedstock. The renewable feed can be introduced into your diesel hydrotreater with your fossil feed. 

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