July 27, 2023

Press release from Topsoe


  • Calumet now produces sustainable aviation fuel (SAF) and renewable diesel (RD) from its Great Falls-refinery in Montana, USA
  • Topsoe’s HydroFlex™ technology was used to revamp the existing refinery unit to produce renewable jet and diesel
  • The production capacity of the Great Falls-plant is about 15,000 barrels per day, and it produces a mixture of renewable jet and diesel, based on waste oils and other low value feedstocks.

The demand for sustainable aviation fuels (SAF) is rapidly growing, with IATA – the International Aviation Transport Association – estimating 120 billion gallons of SAF per year is needed for the airline sector to achieve net zero CO2 emissions by 2050. This compares to the estimated 75 million gallons of SAF being produced in 2022.

Topsoe, a global leader in carbon emission reduction technologies, is dedicated to make a strong contribution to a decarbonized future including in sectors that cannot be directly electrified, including aviation.

For Calumet’s Great Falls refinery in Montana, now being operational producing both SAF and RD, Topsoe delivers its HydroFlexTM technology. Calumet serves markets in Canada and the US West Coast with low emission fuels.

Henrik Rasmussen, Managing Director, The Americas, Topsoe, said:
“It’s great to see the successful production of sustainable aviation fuel by Calumet. Actual production of SAF is crucial for decarbonizing aviation and demand for SAF will only grow the next many years. We’re excited to be working with the Calumet team on this very successful revamp to make renewable fuels.”

Bruce Fleming, CEO Montana Renewables and EVP Corporate Development, said:
“The production of renewable jet is another step toward our company’s strategic goal to help decarbonize the airline industry. It has been a good collaboration between the Calumet and the Topsoe Team and we are presently planning an expansion and a further increase to our SAF yield.”

What are renewable fuels?
Renewable fuels are low-carbon fuels made from renewable sources that are chemically identical to regular petroleum diesel or jet fuel. These renewable fuels produce fewer greenhouse gas emissions while performing the same as regular petroleum diesel or jet fuel.  They can be used as a drop-in fuel without modification to engines or infrastructure. Renewable fuels are made from waste, animal fats, and used cooking oils, as well as organic materials such as soybean oils.  

What is HydroFlex™
With HydroFlex™, customers can convert low-value feedstocks into drop-in renewable jet and diesel that meets all globally accepted specifications for these fuels. The innovative HydroFlex™ process layout offers lower capital expenditure (CAPEX), but also a lower energy consumption during operation, resulting in a lower Carbon Index (CI). Topsoe’s HydroFlex™ can be deployed in both grassroots units and revamps for co-processing or stand-alone applications. HydroFlex™ is by far the most successful renewable fuels technology globally.

About Calumet
For more than 100 years, Calumet has delivered high-quality products and services to customers around the world. Calumet manufactures, formulates and markets a diversified slate of specialty branded products to customers in various consumer-facing and industrial markets.

Headquartered in Indianapolis, Indiana, nearly 1,500 team members operate at more than 10 facilities across North America, including 10 specialty product manufacturing and production facilities. Calumet products are available in more than 90 countries across the world, serving nearly 3,000 customers globally.

We specialize in meeting the specific product needs of our customers to provide solutions to sustain and enhance life’s most essential products and provide a brighter future for generations to come. At Calumet, we are shaping a world that is safer, healthier and more connected than ever before.

About Topsoe
Founded in 1940, Topsoe is a leading global developer and supplier of decarbonization technology, catalysts, and services for the energy transition.

Our mission is to combat climate change by helping our partners and customers achieve their decarbonization and emission-reduction targets, including those in hard-to-abate sectors such as aviation, shipping, and the production of raw materials. From carbon reduction chemicals to renewable fuels and plastic upcycling, we are uniquely positioned to aid humanity in realizing a sustainable future.

Topsoe is headquartered in Denmark, with over 2,400 employees serving customers all around the globe. To learn more, visit www.topsoe.com

For more information, please contact:
Ulrik Frøhlke, Media Relations Manager
Phone: +45 27 77 99 68
Mail: [email protected]

Originally published on 27 July.