About us


Puregas Solutions offers a complete service and operation package, ensuring that the biogas upgrading plant is controlled and supervised around the clock. The package can include remote operation, supervision, control, service, maintenance and telephone support. Most importantly, we take the responsibility for the process optimisation, suggesting and implementing improvements for the long-term.


CApure biogas upgrading plants will continue to deliver high quality biomethane for up to 20 years. The plant is guaranteed for up to 98% availability which can be improved through our optimisation program for all newly built plants.

Through the Puregas Solutions optimisation program, the Göteborg Energy plant in Gothenburg, Sweden achieved 99.5% during its second year of operation.


Puregas Solutions offer a complete package of services and support to make sure that your plant always runs efficiently. These packages include 24 hour telephone support, remote control, and regular plant visits. The result? Ensured energy efficiency and biomethane quality via continuous supervision and process optimisation. But even more importantly, long term suggestions for improvement in our quest for technical development. This is an investment that will pay off.

With over 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 / Renewable Natural Gas RNG yields and revenues with exceptionally low operational costs. Puregas provides fully integrated solutions for biogas upgrading and have over 30 plants already operating.

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 adsorption. The selective organic solvents used in this process are so efficient that the product gas can contain over 99% biomethane. The biomethane / Renewable Natural Gas RNG 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


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