Gas Quality and Reliable Upgrading
The Biogas and Landfill Gas , RNG market offers significant renewable energy opportunities but also face challenges related to gas quality and processing. Needs vary based on the end use, requiring customized, reliable solutions.
This is where Axens combined expertise comes in.
Global annual growth rate for RNG
New biogas upgrading facilities built each year in the world
Biogas/landfill gas units using AxTrap 4000 series as of 2024
Renewable Gas
Biogas, a methane-rich energy source, is produced from the methanization of organic materials such as agricultural residues, wastewater sludge, and landfill waste, as well as the anaerobic digestion of high-COD wastewater. Explore how Axens, HydroThane, and Arol provide comprehensive solutions across the biogas value chain.
Industrial Wastewater Treatment
Biogas Purification
Biogas Upgrade
Discover our Solutions
Landfill gas, produced from the anaerobic decomposition of solid waste, becomes a valuable resource when purified. We offer an extensive portfolio of adsorbents for comprehensive landfill gas purification, enabling its safe use in power and heat generation or upgrading to biomethane.
Our solutions cover a wide range of applications, including drying, CO2 separation, and the removal of VOCs, siloxanes, H₂S and other sulfurs, oxygen, nitrogen, mercury, fluoride and chloride, ensuring optimal performance and efficiency.
Hydrogen sulfide and other sulfurs are the most common contaminant in Biogas and Landfill Gas. Axens offers a range of adsorbent products to bring a simple, reliable, and cost-effective solution for a wide variety of treatment challenges.
Volatile organic compounds can lead to harmful emissions and difficulty meeting gas quality specifications. Axens offers VOC removal solutions as a polishing step to complement other treatment technologies
Removal of moisture is a standard unit operation in Biogas and Landfill Gas plants. Axens offers dehydration/drying adsorbents to meet stringent moisture specifications with minimal energy required.
Mercury can be present at trace levels in landfill gas. Its removal is crucial to prevent HSE-related issues, corrosion problems, and damage to downstream treatment technologies.
Removal of carbon dioxide to purify methane Landfill gas into biomethane is required in RNG plants. Axens offers molecular sieve and alumina products adsorbents in Pressure Swing Adsorption (PSA) units for minimum coadsorption and maximum performance.
Siloxanes are a growing contaminant of concern in Biogas and Landfill Gas plants. If not removed, siloxanes could damage downstream equipment. Axens offers activated alumina to completely and reliably remove siloxanes.
Biogas, derived from livestock farms and agricultural waste, requires purification for effective heat and power generation. Axens offers advanced adsorbents for drying, CO2 separation, and removing H2S and other sulfurs, oxygen, VOCs and other trace contaminants.
In partnership with Arol Energy, we provide state-of-the-art amine and membrane technologies to efficiently upgrade biogas to high-quality biomethane.
Hydrogen sulfide and other sulfurs are the most common contaminant in Biogas. Axens offers a range of adsorbent products to bring a simple, reliable, and cost-effective solution for a wide variety of treatment challenges.
Through a highly effective biochemical desulphurization process, Hydrothane BCSP process removes H2S from biogas with a minimal use of chemicals.
Removal of moisture is a standard unit operation in Biogas plants. Axens offers dehydration/drying adsorbents to meet stringent moisture specifications with minimal energy required.
Using amine and membrane technologies, Arol offers reliable and simple solutions to upgrade biomethane.
Axens , through its partner Arol Energy, offers the following processes for biogas upgrade:
- AE-Amine line: Biogas upgrading using a high-performance chemical scrubbing process with a very low energy demand. AE-Membrane & AE-Compact lines: Biogas upgrading based on membrane gas separation combining simplicity and performance in a very compact installation.
- Arol Energy also provides prefabricated boilers to cover head demand on site with complete heat integration with its biogas purification units.
Production of Oxygen in non-Cryogenic air separation PSA Units
Biogas produced from anaerobic digestion of industrial and municipal wastewaters requires purification for effective heat and power generation as well as upgrading for reinjection of biomethane into national grid, if any. HydroThane STP B.V. offer high-rate anaerobic digestion technology of industrial wastewater producing biogas, as well as desulfurization technology complementary to Axens’ portfolio of adsorbents. Axens’ advanced adsorbents are used for drying, CO2 separation, and removing H2S and other sulfurs, oxygen, VOCs, siloxanes, and other trace contaminants.
In partnership with Arol Energy, we provide state-of-the-art amine and membrane technologies to efficiently upgrade biogas to high-quality biomethane.
Axens offers through HydroThane STP B.V. a high-rate anaerobic digestion technology “ECSB” (external Circulation Sludge Bed) to treat and achieve high organic loading rates in many different types of industries around the world.
Through a highly effective biochemical desulphurization process, Hydrothane BCSP process removes H2S from biogas with a minimal use of chemicals.
Removal of moisture is a standard unit operation in Biogas and Landfill Gas plants. Axens offers dehydration/drying adsorbents to meet stringent moisture specifications with minimal energy required.
Using amine and membrane technologies, Arol offers reliable and simple solutions to upgrade biomethane.
Removal of carbon dioxide to purify methane Landfill gas into biomethane is required in RNG plants. Axens offers molecular sieve and alumina products adsorbents in Pressure Swing Adsorption (PSA) units for minimum coadsorption and maximum performance.
Volatile organic compounds can lead to harmful emissions and difficulty meeting gas quality specifications. Axens offers VOC removal solutions as a polishing step to complement other treatment technologies.
Siloxanes are a growing contaminant of concern in Biogas and Landfill Gas plants. If not removed, siloxanes could damage downstream equipment. Axens offers activated alumina to completely and reliably remove siloxanes.
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