Purified gas stream

Meet the highest gas purification standards in food and industrial applications using our catalysts and absorbents.

Based on our 85 years of experience with catalytic solutions, you get an efficient and reliable way to reach your compliance targets today.

Purification to the strictest standards.

Extensive catalyst and absorbent portfolio for a tailor-made solution.

A two-step catalytic system able to remove VOCs and oxygen at the same time.

We have developed a two-step catalytic system for maximum purity made up of two of our advanced technologies.

In step 1, the CATOX™ catalytic oxidation technology efficiently uses oxygen to remove volatile organic compounds (VOCs) and other impurities such as hydrogen, carbon monoxide, and ammonia.

In step 2, any surplus oxygen introduced during this first step, can be removed upon dosed hydrogen addition with the O2Xtract™ – a catalytic solution designed to efficiently and cost-effectively eliminate trace oxygen from gas streams, ensuring the production of high-purity gases and compliance with the most stringent industry standards.

Purify your industrial gases to the highest food and industry grade

Many industries require gases of highest purity. These include pure green hydrogen and biogenic carbon dioxide which are essential building blocks in the production of valuable chemicals and fuels, including e-methanol, renewable natural gas (RNG), e-fuels (including sustainable aviation fuel and renewable diesel), carbon monoxide, and many others.

Catalysts for VOC and oxygen removal

The catalysts applied for the CATOX and O2Xtract solutions are based on precious or base metals on a carrier. The large portfolio of CATOX catalysts can efficiently oxidize even the toughest molecules, such as methane. With O2Xtract, oxygen removal is performed efficiently at low temperatures and with long operation cycle. The noble metal content has been optimized for a cost optimal solution.

Absorbents for additional gas treatment

The O2Xtract and CATOX two-step process can be further enhanced by combining it with absorbents designed to remove a wide range of common metallic and non-metallic contaminants.

Specific components and impurities may have to be removed upstream or downstream the catalyst, as they can poison it, affect the final product properties and/or cannot be removed catalytically.

With a large portfolio of absorbents and guards developed for a variety of applications, we can develop a guard design tailored to the particular application and gas composition.

Catalysts and absorbents

CK-304

Palladium based catalyst in form of pellets, particularly efficient in alkanes removal.

CK-307

Sulfur resistant platinum-based catalyst in form of pellets, suitable for a variety of applications.

CK-302

Copper-manganese catalyst in form of pellets, suitable for a variety of applications such as paint shops.

CK-322

A ring-shaped version of copper-manganese catalyst, suitable for applications requiring minimal pressure drop.

HTG-10

Flexible to use and strong chlorine adsorbent of high capacity.

HTZ-5

Zinc oxide based sulfur absorbent of 99% purity, suitable for a large range of feedstocks.

SC-501 Purify™

High-performance sulfur absorbent especially developed for lower temperature applications.

HGG-10

Metal oxide based mercury guard with high porosity.

CO2 for food grade applications: Food grade specifications, such as set by International Society of Beverage Technologists (ISBT), set strict limits on impurities like ammonia, CO, oxygen, and hydrocarbons, which can impact processing and product quality. The CATOX process uses food grade certified catalysts, ensuring CO₂ compliance with the ISBT 5.0 Beverage Grade program.

Hydrogen for direct iron reduction: High purity hydrogen is required in direct reduction of iron ore (DRI). Usage of green hydrogen in this process is a key path to decarbonizing the steel industry. The catalysts applied for O2Xtract ensure efficient removal of oxygen from green hydrogen produced by alkaline or PEM based electrolysis.

Ultrapure nitrogen for electronics, medicine, chemicals and industry: The O2Xtract and CATOX solutions are suitable to remove impurities from nitrogen to fulfill any industrial requirements. After oxygen removal with O2Xtract, nitrogen can be used in green ammonia production which has strictest tolerance to oxygen in feed.

How our technologies support compliance across industries

The O2Xtract and CATOX solutions support compliance with strict purification requirements across a wide range of industries that require high-purity hydrogen and biogenic carbon dioxide.

Here’s how they can be applied:

Food and industry: Capture, purification and processing of CO2 is essential for food applications, many chemical technologies and general industry decarbonization. Our solutions ensure hydrogen removal from carbon dioxide for safe capture, storage and urea production, as well as removal of VOCs and oxygen to comply with any food grade requirements.

CO2 for urea and carbon capture: Carbon dioxide captured in conventional syngas-based frontend like hydrogen or ammonia production can be sent to storage or pipeline or converted downstream to e.g. urea. Our CATOX catalysts ensure efficient hydrogen removal, to avoid hydrogen accumulation downstream that brings risk of fires, explosions or plant trips. Catalysts can be used in low-, medium- and high-pressure reactors anywhere within an ammonia or urea plant and fulfill the requirements of all urea technologies.

Contact us

Do you have a question about our products or solutions? Or do you want to know how our technologies can support your business? Contact our experts today.