14 June 2011

Integrating biogas in the regional gas grid

14 June 2011

Renewable gases

Renewable Biomass

Gasification

Anaerobic digestion

Direct use

Upgrading

Upgrading

Natural gas grid

Biomethane

Biogas

Bio Synthetic Gas

Dedicated grid

Cleaning

Cleaning

14 June 2011

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2

3

Three current feed-in projects

1. De Marke, Hengelo (Gld)

2. Schoteroog, Haarlem

3. HVC, Middenmeer

14 June 2011

De Marke, Hengelo (Gld)

Specifications

• Parties involved: Wageningen UR Livestock Research, GreenChoice

• Source: Manure (cows)

• Upgrading: Gas washing

• Max. flow: 14 m3/hr

• Location: Hengelo (Gld)

• Gas pressure: 100 mbar

14 June 2011

Schoteroog, Haarlem

Specifications

• Parties involved: Essent, Gas Treatment Services, NV Afvalzorg, Hoogheemraadschap Rijnland en Gemeente Haarlem

• Source: Landfill and waste water treatment plant

• Upgrading : GPP® - cryogene technique

• Max. flow: 300 m3/hr – 1000 m3/hr

• Location: Haarlem

• Gas pressure: 4 bar

14 June 2011

HVC, Middenmeer

Specifications• Parties involved: HVC, DHV• Source: Compostable waste• Upgrading: Gas washing• Max. flow: 1000 m3/hr• Location: Middenmeer• Gas pressure: 8 bar

14 June 2011

Pattern of gas demand

Example for an 8 bar grid

14 June 2011

Optimal location choice

Location & opportunities

– Feed in location: Highway or Dirt Road

– Optimal solution; costs

– Central Upgrade Unit

– Injection 40 Bar?

– Demand vs. Production

14 June 2011

Feed-in station

Monitoring:

• Chemical composition

• Pressure

• Volume flow

Including:

• Filter

• Safety valves

• Data communication

14 June 2011

Biogas in the natural gas grid

14 June 2011

Biogas grids

Gas Station

User 2

Prod 2

Prod 1

User 1

40 Bar

8 bar

Injection: If demand all users < producers

To help create a better society in the regions in which we operate and to contribute to social and economic growth.