Did you know there can be 5x more air pollution inside your house than outside of it? Indoor Air Quality (IAQ) refers to the air quality within and around buildings and structures, especially as it relates to the health and comfort of building occupants. Understanding and controlling common pollutants indoors can help reduce risk of indoor health concerns. BASF offers the widest portfolio of adsorbent technologies for a broad spectrum of applications in industries such as refining, petrochemical, chemical, and gas processing. The BASF portfolio includes proprietary alumina, silica, alumino-silica gels and a broad line of base metal oxide guard bed materials, including the PuriStar family. At BASF, our Fluid Catalytic Cracking (FCC) catalyst and additive offerings together with our expert technical services build the right solution to create value within any unit’s constraints. The increasing demand for energy and resources is what drives us to develop more sustainable solutions, while addressing the need for energy efficiency and conservation. We partner with those who share our commitment to a healthier, more natural and more affordable future for energy and resources. We are constantly improving the quality and reliability of our products, and strive for even greater efficiency and productivity. BASF Natural Gas experts have a diverse portfolio of products to custom design a solution and help you meet your Natural Gas treatment needs. BASF has been serving the natural gas treatment market for over 60 years. With more than 150 years of experience in metal sourcing, trading, and hedging, we’ve built tangible results for our industrial customers. With more than 100 years of experience in recycling materials, BASF’s end-to-end recycling program is known and trusted around the globe. As a leader in precious-metal thermocouples for many years, BASF recently applied its technological expertise to optical-based temperature measurement. BASF Sorbead® Air adsorbents are alumino silicate gels in the form of hard, spherical beads. They are essential in removing water from compressed air so that the efficiency of chemical processes is not compromised. Sorbead® Air is the most energy saving and environmentally friendly adsorbent available for the air compression industry. Innovative, step-change technology with dual-purpose performance: removal of heavy hydrocarbons and water to cryogenic specifications in a single unit. Find the latest news and media information for BASF’s Catalysts division, headquartered in Iselin, New Jersey, USA, the world’s leading supplier of environmental and process catalysts.
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Durasorb™ Cryo-HRU

Innovative, step-change technology with dual-purpose performance: removal of heavy hydrocarbons and water to cryogenic specifications in a single unit.

This new technology provides a simplified pre-treatment line-up and increases feed gas flexibility. Proprietary adsorbents ensure the removal of trace hydrocarbons, including BTX, which can cause freezing in the coldbox and unplanned plant shutdowns. Durasorb Cryo-HRU ensures reliable plant operations and continuous LNG production.

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BASF Natural Gas Treatment experts, positioned around the world, work closely with the customer to provide a tailored solution for the most challenging cases, including heavy gas feeds, gas feeds that contain light mercaptans, and light gas feeds that contain trace heavy hydrocarbons and BTX. Our global network of experts respond quickly to customer inquiries and provide unmatched technical support through the lifetime of the unit.

In 2020, BASF worked closely with Shell to qualify Durasorb Cryo-HRU technology. Watch the video to learn more about the technology, the qualification process, and the collaboration.


Leveraging decades of experience designing TSA units for the treatment of natural gas, BASF has developed a multi-layer bed that is resistant to liquid hydrocarbon and water carryover and removes trace heavy hydrocarbons, BTX, and water to cryogenic specifications. With an extensive portfolio of adsorbents at their fingertips, technical experts design the bed to address challenging gas feeds and model all aspects of the adsorption unit to ensure continuous operation for more than 4 years. The newly developed product, Durasorb BTX, has 30% greater capacity for benzene, toluene, and xylenes compared to other commercially available materials.

Using proprietary modeling tools, BASF technical experts provide unit simulations, including dynamic adsorption and regeneration profiles. This level of detail allows the customer to fully optimize the plant around the adsorption unit, resulting in CapEx and OpEx savings.

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Double your impact
Reduce your footprint

with Durasorb Cryo-HRU

This new technology combines hydrocarbon removal and dehydration into a single unit to provide natural gas that is ready for liquefaction.

With Durasorb Cryo-HRU, your business benefits from:

  • Unit designs and simulations from best-in-class modeling tools
  • Reduced risk of coldbox freezing and unplanned shutdowns
  • Increased profit from reliable operations and long life-time warranties
  • Increased operational flexibility and ease of adapting to changing feed
    gas conditions
  • Engineering and technical support for smooth project execution and optimized plant performance

Durasorb Cryo-HRU is available as a drop-in retrofit solution or to reduce capital expenditure for a new project.

Support and Services

BASF supports its customers in the design and operation of temperature swing adsorption units for gas treatment plants. BASF technical experts provide process design, modeling, and basic engineering. In addition, BASF provides a range of technical services such as debottlenecking and process optimization, troubleshooting and revamps, analytics, and training. BASF tailored solutions address customer specific gas compositions, while considering the CapEx and OpEx priorities of our customers.

BASF Catalysts | Customer Support

BASF delivers:

Unit Designs and Simulations

Engineering Services

Technical Services

Technology License

Process Warranty




BASF Catalysts | LNG Ship Background

LNG publication

The adsorbents team at BASF, paired with Shell, to detail a dual-purpose adsorbent technology for combined heavy hydrocarbon and water removal from lean feed gas in LNG to prevent cold box freezing.

Recent Articles

BASF Catalysts | LNG Ship Background

Durasorb Cryo-HRU offers a proven alternative to conventional approaches

Struggling to remove mercaptans and keep project costs in line? Time to consider Durasorb™ Cryo-HRU!

Recent News Releases

BASF Catalysts | Durasorb Technology

Dec 02, 2020

Shell qualifies BASF Durasorb Cryo-HRU technology for removal of heavy hydrocarbons and water from natural gas

Get in Touch

Complete the form to get in touch with a BASF representative to learn more about Durasorb™ Cryo-HRU.