Compressed upgraded biogas (biomethane/CBG); from food waste and manure; production, distribution, and use, minimum 97% methane

Product name

Compressed upgraded biogas (biomethane/CBG); from food waste and manure; production, distribution, and use, minimum 97% methane

Reference flow

1 kWh

System boundaries

Includes pre-treatment of food waste at the biogas facility, anaerobic digestion, upgrading, distribution by truck and use of biogas in a combustion engine. Collection of food waste is not included in the dataset. Collection of manure is included in the system boundaries. Incineration and transport of reject from pre-treatment of food waste is included. No substitution of avoided products included.

Wastes and end-of-life

Includes transport and combustion of the pre-treatment reject.

Use advice of the dataset

This dataset should be used when modelling the use of biogas in transport applications. When using manure for biogas production, the storage time (and related emissions) of manure is reduced. This effect is not included in the dataset. Furthermore, this dataset focusses on the impact on climate change. One should therefore be cautious in using this dataset to analyse other impact categories, especially toxicity. The ecoinvent database (version 3.7.1 allocation cut-off by classification) has been used for background processes.

Technology description

1 kWh upgraded biogas from household waste and manure. As input material in the biogas facility, approximately 50% comes from household waste and 50% from manure sourced from surrounding farms. Production process: 1) Mechanical pretreatment to remove unwanted objects and reduction of particle size: screw press, grinder, hydro cyclone. 2) Sterilization process for 1 hour at 70 °C 3) Anaerobic digestion: Hydraulic retention time (HRT) 36.5 days. 4) Upgrading: water scrubber. Emissions from driving: EURO 5.

Quality level

Very good

Location

Norway

Geographical representativeness description

The biogas facility is located in the Vestfold and Telemark county. Manure is transported from local farms.

Quality level

Very good

Reference year

2018

Time representativeness description

Report was published in 2020.

Time quality level

Very good

LCI method principle

Attributional

Other comments on methods approaches

Data collection period

2018

Data set generator

Kari-Anne Lyng, NORSUS

References

Lyng, K.-A., Saxegård, S., 2020, Livsløpsvurdering av produktene og tjenestene til Den Magiske Fabrikken. OR.23.20. NORSUS, Kråkerøy. Available from: https://norsus.no/publikasjon/livslopsvurdering-av-produktene-og-tjenestene-til-den-magiske-fabrikken/ (In Norwegian) Brogaard, L. K., Petersen, P. H., Nielsen, P. D. & Christensen, T. H. (2015). Quantifying capital goods for biological treatment of organic waste. Waste management & research: the journal of the International Solid Wastes and Public Cleansing Association, ISWA, 33(2), 96-106. https://doi.org/10.1177/0734242X14565212

Access and use restrictions

Open

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