Sale, design & project

Gas upgrade

Energy solutions

Gas upgrade


At NISSEN energy, we design and construct gas upgrade systems based on the most efficient membrane on the market – the SEPURAN® Green membrane from EVONIK.

You get all the benefits of membrane technology and a partner with an eye for your specific need..

Contact our Sales Dept. for further information on gas upgrade…

NISSEN energy gasmotor-unit



Maintenance of gas upgrade systems is also a part of our area of competence.


  • High-efficiency upgrade process in several steps.
  • Methane yield is > 99.5%.
  • Flexible and scalable system that can be easily expanded.
  • Design for minimal maintenance.
  • No use of chemicals or water in the upgrade process.

Quality is in our DNA


NISSEN energy ensures quality in our products, processors and services through our ISO 9001: 2015 certification, audited through Bureau Veritas. This means that we have the statutory authorization for our work at:

  • Balancing and service on larger gas-fired burners over 135 kW
  • Gas engine-unit (CHP)
  • Installations with process equipment
  • Safety check on gas installations
  • El-installations (Authorized electrician)


What's in it for you?

NISSEN energy gasmotor-unit

NISSEN energy a/s

Godthaabsvej 1
8660 Skanderborg

+45 75 75 65 00