Hydrocracking | Mild hydrocracking

In mild hydrocracking (MHC), the main objectives are to obtain a certain minimum conversion between 15–50% as well as meeting specific product properties, such as sulfur content, density, cloud point and cetane number. At typical pressures in the 60-110 bar range, meeting these parameters can be challenging and cycle lengths are often determined not by conversion rates, but by a failure to comply with specifications.

Topsoe’s range of MHC catalysts and technologies enable you to meet these challenges, whatever your product specifications. Our mild hydrocracking catalysts deliver excellent nitrogen tolerance, resulting in very stable hydrodenitrogenation (HDN) and hydrodesulfurization (HDS) activity throughout the cycle.

Our Staged Partial Conversion (SPC) hydrocracking process enables high-quality ultra-low sulfur diesel (ULSD) to be produced in an fluid catalytic cracking (FCC) pretreater. With no overtreating of the FCC feedstock, the process optimizes your hydrogen use and costs, while ensuring a stable heat balance in the fluid catalytic cracking (FCC) unit.

TK-921

TK-921 is part of Topsoe’s hydrocracking red series developed for maximum hydrogenation. This is an ...

TK-925

TK-925 is part of Topsoe’s hydrocracking red series developed for maximum hydrogenation. This is a ...

TK-926

TK-926 is part of Topsoe’s hydrocracking blue series, developed for maximum cold flow properties of ...

TK-931

TK-931 is part of Topsoe’s hydrocracking red series developed for maximum hydrogenation. It is a ...

TK-939 D-sel™

TK-939 D-sel™ is part of Topsoe’s hydrocracking D-sel™ series for maximum diesel yields. TK-939 ...

TK-941

TK-941 is part of Topsoe’s hydrocracking red series developed for maximum hydrogenation. TK-941 has ...

TK-943

TK-943 is part of Topsoe’s hydrocracking blue series developed for maximum cold flow properties of ...

TK-947

TK-947 is part of Topsoe’s hydrocracking red series developed for maximum hydrogenation. TK-947 is ...

TK-949 D-sel™

TK-949 D-sel™ is part of Topsoe’s hydrocracking D-sel™ series for maximum diesel yields. TK-949 ...

TK-951

TK-951 is part of Topsoe’s hydrocracking red series developed for maximum hydrogenation. TK-951 is ...

TK-961

TK-961 is part of Topsoe’s hydrocracking red series developed for maximum hydrogenation. TK-961 is ...

TK-969 D-sel™

TK-969 D-sel™ is a zeolitic NiW based hydrocracking catalyst with very high activity and a high ...

TK-971

TK-971 is a zeolitic NiW-based hydrocracking catalyst with very high activity. TK-971 provides ...

Catalyst support

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

Distributor tray

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

Inlet diffuser

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

Outlet collector

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

Quench mixer

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

Redistribution tray

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

Scale catcher

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

Back-end shift partial conversion (BES)

The once-through process that converts heavy gas oils to on-spec diesel Refiners often find that the end boiling point of their hydrotreated diesel product is slightly higher than allowed for the diesel pool. Topsoe’s back-end shift partial ...

Catalytic dewaxing

Significant cold flow improvement The cold flow properties of higher end-point feeds, tight oils, or renewable feeds need to be carefully managed in diesel hydrotreaters operating in cold regions or winter seasons. The freezing point of paraffin in ...

Revamping hydroprocessing units

When evaluating potential revamp solutions, Topsoe proceeds systematically. We call it The Topsoe ...

Catalyst Loading

Topsoe’s Catalyst Loading service gives you valuable pre-loading and loading guidance that can help ...

General Technical Service

Topsoe’s General Technical Service employs the full weight of our knowledge and experience to ...

Plant Assessment / Optimization

A Topsoe Plant Assessment/Optimization can identify and help you solve issues standing in the way ...

Sampling & Analysis

Our Sampling & Analysis service is your direct route to the detailed insight it takes to make ...

Start-up & Reduction / Activation

Our Start-up & Reduction/Activation service supports you before, during and after start-up to make ...

Troubleshooting

Our Troubleshooting service draws on the full range of Topsoe’s insight into catalysts, equipment ...

Project development

We facilitate all relevant contracts to meet both the debt and the equity financing requirements.

Get in touch

Peter Andreas Nymann

Peter Andreas Nymann

Contact our expert

Related downloads

Boosting mild hydrocracking performance
Article

Boosting mild hydrocracking performance

Optimising its mild hydrocracking operations using new catalyst developments enabled a refinery to meet more complex targets for fuel quality

Article Boosting mild hydrocracking performance

Watch related videos

Introducing the TK-611 HyBRIM™ catalyst
Introducing the TK-611 HyBRIM™ catalyst Looking for a superior catalyst for high pressure ultra-low sulfur diesel or hydrocracking pretreatment service? With rising oil demands and tougher feeds, the industry is focused on generating more ...
Torus™ quench mixer - optimal mixing, faster and safer access, and more profit
Torus™ quench mixer - optimal mixing, faster and safer access, and more profit As fuel specifications worldwide tightens, the role of reactor internals has become crucial to achieve optimal conditions in hydroprocessing reactors. Even minor irregularities in your mixing ...

Applications within this area