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Lower the cost and simplify the design for your Biogas and Landfill Gas project with an integrated approach to treatment with Axens adsorbents.

Biogas & Landfill Gas is derived from the following sources:

  • Landfills
  • Digestion of food and agricultural waste
  • Digestion in municipal and industrial waste water treatment plants

Contaminant removal or gas upgrading is typically required to take advantage of Biogas & Landfill Gas as an energy source or exhaust it to atmosphere. While the amount and the type of contaminants depend on the source, treatment is primarily determined by the destination of the gas: to Atmosphere via Gas Flaring, to Local Power/Electricity Generation or to Renewable Natural Gas.

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When exhausting Biogas & Landfill Gas to atmosphere, harmful air emissions and odor control are the primary treatment concerns.

Atmosphere

Sulfur/H2S Removal Adsorbents

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.

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VOC Removal Adsorbents

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.

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When reusing Biogas & Landfill Gas as a local energy source, operators have several options for power/electricity generation equipment such as boilers, gas engines, or combined heat & power (CHP) systems. The choice of equipment dictates the level of required treatment.

electricity

Mercury Removal Adsorbents

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.

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Sulfur/H2S Removal Adsorbents

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.

Discover

VOC Removal Adsorbents

Volatile organic compounds can lead to harmful emissions and difficulty meeting gas quality specification. Axens offers VOC removal solutions as a polishing step to complement other treatment technologies.

Discover

Dehydration/Drying Adsorbents

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.

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Siloxane Removal Adsorbents

Siloxanes are a growing contaminant of concern in Biogas and Landfill Gas plants. If not removed, then siloxanes could damage downstream equipment. Axens offers activated alumina products in Temperature Swing Adsorption (TSA) units to completely and reliably remove siloxanes.

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When upgrading Biogas & Landfill Gas to Renewable Natural Gas (RNG), the treatment specifications are determined by the utility or pipeline company. These can vary based on location.

Natural Gas

Mercury Removal Adsorbents

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. Axens is a world leader in mercury removal adsorbents.

Discover

Sulfur/H2S Removal Adsorbents

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.

Discover

Dehydration/Drying Adsorbents

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.

Discover

Siloxane Removal Adsorbents

Siloxanes are a growing contaminant of concern in Biogas and Landfill Gas plants. If not removed, then siloxanes could damage downstream equipment. Axens offers activated alumina products in Temperature Swing Adsorption (TSA) units to completely and reliably remove siloxanes.

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CO2 Removal Adsorbents

Removal of carbon dioxide to purify methane is required in RNG plants. Axens offers molecular sieve and alumina products in Pressure Swing Adsorption (PSA) units for minimum coadsorption and maximum performance.

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CO2 Separation Membranes/Technologies

Axens acquired a stake in Arol Energy in 2019. Arol Energy offers the following processes which are specialized for the purification of biogas:

  • AE-Amine line: Biogas upgrading using a high-performance chemical scrubbing process with a very low energy demand that meets the strictest technical specifications.
  • 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.
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VOC Removal Adsorbents

Volatile organic compounds can lead to harmful emissions and difficulty meeting gas quality specification. Axens offers VOC removal solutions as polishing step to complement other treatment technologies.

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Consulting, Supply & Support

Technical Support & Performance Management

Axens is fully committed to be your partner and provide assistance and support during your project lifecycle, from conception to start-up & running operations.

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Equipment Supply

During decades of technology developments, Axens has acquired a deep expertise in mechanical design, instrumentation, automation to provide more innovation and benefits to its customers. Synergies between process and equipment maximize performance and long-term reliability.

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Technical Support & Performance Management

Axens is fully committed to be your partner and provide assistance and support during your project lifecycle, from conception to start-up & running operations.

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