Biogas/AD

In terms of global warming and independence of fossil fuels, biogas has a number of advantages. Produced from biodegradable wastes, biogas can be used for the production of low-carbon heat and electricity and can be upgraded for use as a vehicle fuel.

Biogas Facility

Contact

Per Nilsson

Per Nilsson

Head of department Energy & Process, Ramboll Energy
T: +46 (10) 6152739
Martin Hostrup

Martin Hostrup

Service Line manager, Anaerobic Digestion
T: +45 51611826
Linn Helland

Linn Helland

Country Manager, Ramboll Energy Norway
T: +47 45 29 69 63

Biogas usage options

Biogas is a renewable fuel that can be used in a number of ways. Biogas can be used in boilers to provide heat only, in combined heat and power plants (CHP) to generate both electricity and heat, or upgraded to biomethane and then injected into the gas network or used as a vehicle fuel.

Ramboll has extensive experience in advising clients on all these methods. We also advise on the development of gas networks for biomethane, in settings where no suitable infrastructure exists already.

Biogas upgrade

Biogas is made up of methane, carbon dioxide, hydrogen sulphide, water vapour and other minor constituents and particulates. The methane, and therefore the energy, content of the biogas can increase by removing the other constituents - the methane content can be increased to 98% or more. In this form, biomethane is suitable for injection into the gas network or used as a vehicle fuel.

Ramboll has advised a number of clients on biogas upgrades, which creates high grade renewable fuel and removes those constituents that have the potential to corrode or cause mechanical wear to a facility. 

There are a number of technologies available for the removal of CO2, which are continually being improved and developed upon. It is important to choose the most appropriate technology for the task, based on plant-specific parameters.

Biogas as a vehicle fuel

Biomethane can be compressed or liquefied into Compressed BioGas (CBG) or Liquefied BioGas (LBG), which can then be used as a vehicle fuel. Natural gas used as a vehicle fuel can lead to a  20-30% saving on carbon emissions.  The process of capturing biomethane can lead to a 100% reduction in greenhouse gas emission compared to other energy sources.

Vehicles running on biomethane have lower emissions of particulates, NOx and SOx and are known to be quieter running than engines running on petrol or diesel.

Ramboll has been involved in pre-construction planning, design and inspection of a significant number of vehicle fuelling stations.

Anaerobic digestion of sewage sludge and organic waste

A city with a population of one million has the potential to generate 17,300,000 Nm3/year of raw biogas from sewage sludge. This is equivalent to 110 GWh; enough energy to provide heat and electricity to 4,400 households.

Alternatively, 280,000 homes can be supplied with heat and electricity from biogas generated from 8 million tonnes of organic waste.

Ramboll has considerable experience in the preparation of anaerobic digestion (AD) plant business models.

The underlying analyses investigate appropriate composition and volumes, consider the security of feedstock, evaluate the potential energy production levels and digestate output, and identify and evaluate end markets. Once a conclusion on the feasibility and scale of a plant has been reached, Ramboll can select, design and procure the correct reception facilities and waste handling equipment as well as the AD plant itself.

Our services after the pre-study stage cover the entire project cycle from preliminary design, permit applications and EIAs to final design, tendering, supervision, commissioning and performance tests. We also perform periodical inspections and analysis of risks and operational safety.

More information

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Projects

Waste facility, Oslo

Upgrading pre-treatment of waste in Oslo

In Oslo, both solid and liquid waste has since commissioning in 2012 been delivered to the Romerike Biogas plant (RBA) for pre-treatment. Now, Ramboll has been appointed by the city of Oslo to optimize the existing plant design and processes in order to obtain a more resilient facility and biogas production.

LNG carrier at port

Borås gas filling station & LNG storage

Construction of a new gas filling station for the supply of biomethane as a vehicle fuel and LNG backup storage.

Bekkelaget Biogas Upgrading Plant

Norway's largest biogas upgrading plant set to deliver vehicle fuel.

A bioenergy facility in Jutland, Denmark

Biogas Tønder - the largest biogas plant in the Nordics

In South Denmark a large-scale biogas plant is under development. The plant will treat liquid manure, household waste and energy crops from 120 farmers, and Ramboll advises on design and approval.

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Ramboll Group A/S

Ramboll Group A/S
Hannemanns Allé 53
DK-2300 Copenhagen S
Denmark
Tel: +45 5161 1000
Fax +45 5161 1001

Mail: info@ramboll.com

Danish CVR numbers

Danish CVR numbers

Ramboll Group
10160669

Rambøll Danmark
35128417

Ramboll Energy
35128417

Rambøll Management Consulting
60997918

Other sites

Other sites