About us


Creating lifetime partnerships is at the core of our business philosophy at Puregas Solutions. This ensures the biogas upgrading solutions we provide are precise and attain the best possible returns for our clients.


With more than 20 years of experience Puregas Solutions manufactures and supplies Biogas Upgrading Plants. The unique CApure upgrading process recovers over 99.9% of the available methane from the raw biogas, maximising biomethane yields and revenues with exceptionally low operational costs.

Puregas Solutions provides fully integrated solutions for biogas upgrading, biomethane / Renewable Natural Gas grid injection, compression for bioCNG and virtual pipelines, in addition to liquefaction for bioLNG and gas vehicle fuelling infrastructure. Puregas Solutions have over 30 plants already operating across the Globe.

Puregas Solutions deliver several options for treating biogas, ranging from upgrading to biomethane (Renewable Natural Gas) for grid injection, compression for bioCNG, to liquefaction for bioLNG and fuelling infrastructure.


“Puregas Solutions work in partnership with our customers to ensure our fully integrated upgrading solutions provide the highest revenues possible and maximise returns.”

Martin Andersson—Managing Director

Puregas Solutions

The CApure process recovers over 99.9% of the biomethane present in the raw biogas by separating the CO2 from the biogas through a process of chemical absorption. The selective organic solvents used in this process are so efficient that the product gas can contain over 99% biomethane. The biomethane can be directly injected in to the gas grid, compressed to produce bio-CNG or liquefied for bio-LNG. It’s also possible to capture the CO2 from the plant and use this for commercial purposes.

All Puregas Solutions biogas upgrading plants are fully factory tested and third party inspected prior to shipment.

Linda Kraft, Project Manager for Puregas Solutions explains:
“Because the upgrading plant undergoes a comprehensive Factory Acceptance Test, any remedial actions necessary can be performed in the workshop prior to shipping. This means that we only need to focus on the mechanical and electrical installation on site, safe in the knowledge that the process is stable and the plant is ready to go”.


13 million compressed
natural gas vehicles worldwide

99.99% CH2

Recovered by Puregas Solutions
unique upgrading process


Over 30 plants already
operational across Europe

Our Global Network

Puregas Solutions AB

Torsåsgatan 3A
392 39 Kalmar
Tel: +46 (0) 480 77 00 00

Puregas Solutions Ltd

Enterprise Park East
Sunderland SR5 2TA
Tel: +44 (0) 191 516 6662

Puregas Solutions GmbH

Deichstrasse 1
20 459 Hamburg
Tel: +49 (0) 160 906 629 51

Puregas Solutions AS

Birkemose Allé 39
6000 Kolding
Tel: +46 (0) 7016 44 312

Wärtsilä North America Inc

117101 N. Gessner Rd,
Suite A, Houston,
TX 77064,

Tel: +1 281 233 6200

Wärtsilä Gas Solutions

Solbraavn 10
1383 Asker
Tel. +47 81 54 85 00