Hydrotreating | Resid hydrotreating

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.

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.

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.

Catalysts

TK-719 | Catalysts | Products | Topsoe

TK-719 is a high-porosity demetallization catalyst for fixed-bed resid service. It is applied in ...

TK-743 | Catalysts | Products | Topsoe

TK-743 is a demetallization catalyst with moderate hydrodesulfurization (HDS) activity for ...

TK-753 | Catalysts | Products | Topsoe

TK-753 is a transition catalyst in fixed-bed resid hydrodesulfurization (HDS) systems. In such ...

TK-773 | Catalysts | Products | Topsoe

TK-773 is a final-stage catalyst for fixed-bed resid hydrodesulfurization (HDS) units. It has a ...

Equipment

Catalyst support | Equipment | Products | Topsoe

Our Catalyst Support is designed to support the combined weight of the catalyst, support material ...

Inlet diffuser | Equipment | Products | Topsoe

Our Inlet Diffusers are optimized and customized for every unit, taking into account all your ...

Scale catcher | Equipment | Products | Topsoe

A common problem in hydroprocessing reactors, is pressure drop build-up caused by various particles ...

Outlet collector | Equipment | Products | Topsoe

Our Outlet Collector ensures even flow distribution in the bottom bed to maximize catalyst ...

Quench mixer | Equipment | Products | Topsoe

Our Quench Mixer ensures efficient mixing of catalyst bed effluents from both above and from the ...

Redistribution tray | Equipment | Products | Topsoe

Our Redistribution Tray ensures uniform redistribution of the mixer effluents to the catalyst bed ...

Distributor tray | Equipment | Products | Topsoe

Our Vapor Lift Distributor Tray (VLT) ensures uniform distribution of liquid and gas over the ...

Process licensing

Revamping hydroprocessing units | Process licensing | Products | Topsoe

The Topsoe Approach There are many good business reasons for considering revamping a ...

HydroTech™ hydrotreating | Process licensing | Products | Topsoe

Optimized to your operations Today, operational efficiency and the production of robust yields of ...

Applications within this area

Diesel Hydrotreating

Our hydrotreating solutions offer you the opportunity to meet all legislative requirements when producing clean fuels, either from conventional crude oil, or from alternative feeds.

FCC Gasoline Post-Treatment

Optimize all the all steps in your FCC gasoline post-treatment applications with Topsoe’s specifically developed series of HyOctane™ catalysts.

Kerosene Hydrotreating

Topsoe’s high-performance catalysts and proprietary equipment enable you to generate the highest possible yield and value from your straight-run and cracked kerosene feeds.

Naphtha Hydrotreating

High demands to get more value out of heavier feedstocks present new challenges for catalysts and technology. Topsoe offers related solutions for downstream petrochemicals processing.

VGO Hydrotreating / FCC Pretreatment

One of the keys to optimize the refinery margin is to have optimal fluid catalytic cracking (FCC) unit performance – both in terms of throughput, but also in terms of product slate.

Co-processing in kerosene

Use co-processing in your kerosene hydrotreating for production of Sustainable Aviation Fuel (SAF). Our TK-930 catalyst maintains highest possible biogenic carbon in the jet fuel.

Co-processing for diesel hydrotreating

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

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