Case story
Biogas for city buses in Oslo
For Wärtsilä, Norway, Victor A/S was to supply a biogas plant for the conversion of waste into liquid biogas. With the new plant, it is possible to produce enough fuel to run 135 buses. In this way, both particulate emissions and noise levels are reduced while the CO2 consumption is reduced by approx. 10.000 tonnes per year.
Process Engineering A/S worked as sub contractor for all engineering services for purification and removal of CO2 as well as liquifaction for LBG.
The process
The biogas plant is located in Nes, Romerike, close to Oslo and is designed to receive up to 50.000 tonnes of waste per year and convert it to biogas. The biogas is then converted to Liquefied BioGas (LBG) and distributed further for use in the transport industry. LBG is gas, that is condensed to a liquid form by cooling it to a temperature of approx. -160°C and compress it to approx. 40 bar.
Process Engineering participated in the project from our office in Fredericia, where 2-5 technicians and engineers contributed to the following competencies. Close collaboration and coordination between Victor and Process Engineering ensured that the project was completed as planned and with a satisfied customer.
Service and scope of the project
- Detailed Engineering on five skids
- Conversion of biogas to natural gas
- Calculation and construction of process towers to remove CO2
- Preparation of layout and 3D pipe design
- Stress-strain analysis of pipes
- Design and calculation of steel
- Production of isometries
- ATEX zone classification
- Complete CE marking of plant
- Thermal envelope and soundproofing
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