Two patented system families that turn raw biogas and off-gas into reliable energy and lower emissions.
Gazpack designs, builds, assembles, and tests every system in-house, then supports commissioning and performance on site. Every project is tailored to actual streams, seasonality, space, and compliance needs, with remote monitoring and straightforward operation for predictable OPEX.
Choose the right fit for your flow: Sulago for compact gas cleaning and conditioning, and Sulaway for full upgrading to biomethane at higher capacities.

Compact gas cleaning
Compact H₂S removal and conditioning for biogas flows of 20–1500 Nm³/h. Patented SULAFER® technology replaces active carbon with a harmless solid by-product — no hazardous waste, lower OPEX, set-and-forget operation. Ideal for farms, wastewater facilities, food and beverage plants, and mid-scale biogas operators.
More about the SULAGO® system
Full biogas upgrading
Large-scale desulfurization and full biogas upgrading for flows above 1500 Nm³/h. Converts high H₂S levels into valuable sulfuric acid and delivers grid-quality biomethane with minimal methane slip. Engineered with offshore DNA for renewable gas plants, landfill sites, and oil & gas operations.
More about the SULAWAY® system