Gas preparation
Filtration, drying and pretreatment to meet the membrane manufacturer’s inlet gas requirements.
Home / Our Solutions / Biomethane & Upgrading
02 / BIOMETHANE UPGRADING
Take the potential of biogas
to the next level.
Biomethane production solutions combining pretreatment, CO₂ separation and gas quality control.
CH₄ / CO₂BİOPAC / SYSTEM APPROACH
Biomethane & Upgrading
Designed around the resource.
Scoped around the objective.
Upgrading aims to enrich the methane in biogas and produce gas suited to its intended use. Membrane separation is assessed together with gas flow, composition and product requirements.
Conversion of existing biogas plantsNew biomethane investmentsOn-site fuel and gas utilisation
The route to biomethane
Upgrading system concept showing membrane modules, gas preparation and compression equipment.
THE PROCESS
How does the system work?
01
Pretreatment
Removal of H₂S, moisture and feedstock-related trace contaminants.
02
Pressurisation
Compression, temperature control and gas preparation for the membranes.
03
Membrane separation
Gas enrichment through differences in the selective permeability of CO₂ and CH₄.
04
Product gas control
Monitoring gas composition and utilisation requirements; managing product and residual gas streams.
SYSTEM SCOPE
Engineering components
considered together.
Equipment and process options are selected according to project inputs and target outputs.
Membrane module
Number of stages and recirculation configuration selected alongside methane recovery and energy consumption.
Compressor package
Compression, cooling and condensate management according to flow and separation conditions.
Analysis & integration
Monitoring CH₄, CO₂, O₂, H₂S and moisture according to project requirements.
THE STARTING POINT FOR DESIGN
What data does your project need?
| Inlet gas | Minimum–maximum flow and CH₄/CO₂ composition |
|---|---|
| Contaminants | H₂S, moisture, O₂/N₂ and trace components |
| Product objective | Purity, methane recovery and delivery pressure |
| Point of use | On-site use, compressed gas or grid supply objective |
Pressure, product purity and recovery are defined by the selected membrane and process design.
FREQUENTLY ASKED QUESTIONS
Key points before making a decision.
Can biomethane be supplied directly to the grid?
Grid connection requires assessment of gas quality, metering, pressure and connection acceptance procedures. An upgrading unit alone does not guarantee grid acceptance.
Can the CO₂ stream be used in a greenhouse or for microalgae?
This is a potential integration route. Purity, H₂S and other trace components are analysed to determine further treatment and utilisation requirements.
Further reading: World Biogas Association · Upgrading technologies ↗
Let’s discuss your biomethane project.
Share your available data so we can define system boundaries and scope together.