Skip to content

Hydrotreating | Co-processing for diesel hydrotreating

The first and simple step on your renewable diesel journey

Co-processing provides an easy way for refineries to start their renewable journey. By replacing even low amounts of fossil feedstock with renewable feedstock, your refinery can produce renewable fuel – and take the first step towards becoming a biorefinery.

How does it work?  

Renewable feedstock can be introduced directly into your diesel hydrotreater with your fossil feed. The end-product will be a combination of renewable and fossil diesel. The renewable propane and methane will be released through the off-gases. 

In most cases, up to 10% renewable feedstock can be added with limited or no equipment modifications. We do, however recommended installing a selective renewable grading and hydrodeoxygenation (HDO) catalyst for maximum yield and contaminant pick-up capacity. 

For co-processing with more than 10% renewable feedstock, a revamp may be required, but this solution is still faster and with lower CAPEX than a grassroot unit. 

Benefits of choosing renewable co-processing in your diesel hydrotreater for production of renewable fuel

  • Limited or no revamp of plant required

  • Renewable grading and HDO catalyst can be included fast, e.g., by next turn-around or even sooner by skimming

  • It’s a low CAPEX solution

  • Easy implementation – no need to wait for 100% renewable grassroot unit

  • You can choose your own co-processing starting point  co-processing for diesel flow diagram

Renewable feed in, renewable product out. This illustration of a hydrotreating unit with a splitter visualizes how introducing renewable feedstock into your unit enables your production of a mix of fossil diesel and renewable diesel. 

Read more about co-processing for kerosene hydrotreating 

Get in touch

Related downloads

Watch related videos

HyOctane™ -  Squeeze more value out of your FCC gasoline
HyOctane™ - Squeeze more value out of your FCC gasoline Do you ever wonder why there is so little competition in the FCC gasoline post-treatment catalyst market? Well, we did, and now there’s a better choice. Thanks to Topsoe’s new series of HyOctane™ ...
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 ...