Advancing Biogas Performance in Asia with Regenerative VOC & Siloxane Removal

By ANKA

As Asia accelerates its transition toward renewable energy, biogas and biomethane projects are playing an increasingly important role in achieving energy security, waste management, and decarbonization goals. However, the performance and long-term reliability of these projects are often challenged by contaminants such as volatile organic compounds (VOC) and siloxanes, which can significantly impact gas quality and downstream equipment.

Siloxanes, commonly found in landfill gas, wastewater treatment plants’ sewage sludge gas, and certain biogas feedstocks, are converted into silicon dioxide during combustion. This leads to abrasive deposits on engines, turbines, heat exchangers, and upgrading systems, causing accelerated wear, unplanned downtime, and increased maintenance costs. Similarly, VOC can create operational risks in upgrading units, membranes, compressors, and grid injection applications, ultimately affecting plant efficiency and availability. 

To address these challenges, ANKA has developed its Regenerative VOC & Siloxane Removal System, designed to deliver high removal efficiency while ensuring continuous operation and low operating expenditures, with filter media replacement required only once a year. Unlike conventional activated carbon-based solutions, which require frequent media replacement and operational interruptions, ANKA’s regenerative technology allows the adsorption media to be reused through an automated regeneration process. This significantly reduces consumable costs, minimizes waste generation, and improves overall system sustainability.

The system is capable of removing up to 99% of siloxanes and up to 90% of VOC, protecting critical equipment and extending asset lifetime. Its modular and scalable design enables seamless integration into both new and existing biogas, landfill gas, and biomethane upgrading facilities, with minimal adaptation required. This flexibility makes the solution particularly suitable for the diverse project scales and technical requirements found across Asian markets.

Beyond technical performance, ANKA’s regenerative approach supports the economic and environmental objectives of biogas producers. By reducing downtime, lowering maintenance needs, and improving gas quality consistency, the system contributes to higher plant availability and more predictable operational costs. This is especially critical as Asian countries adopt stricter gas quality standards for grid injection and industrial applications.

With its focus on innovation, efficiency, and long-term value, ANKA’s Regenerative VOC & Siloxane Removal System represents a reliable pathway for enhancing biogas performance and supporting the sustainable growth of renewable gas projects across Asia.

You can find more efficient solutions like this in the Biogas Community Magazine – Asia Edition 2026.