© 2011 Aerzener Maschinenfabrik GmbH Axel Cichon / May 2013 Renewables Energy – Compressors in Biogas / Biomethane - Plants.

© 2011 Aerzener Maschinenfabrik GmbH Axel Cichon / May 2013

Renewables Energy – Compressors in Biogas / Biomethane - Plants


Dipl. Ing. Axel Cichon

Head of Business Unit – Biogas


Content of the Presentation

1) General InformationType of Gases and Analysis

2) Applications in Biogas and Biomethane Plants

3) Comparison Screw Compressor vs Reciprocating Compressor

4) Norms and Standards for Compressors in

Biogas / Biomethane Injection Plants

5) Examples



1) General Information

Type of Gases and Analysis




Biogas / Biomethane Injection

5) Examples



DVGW G 262

Anhang B – Beispiele für die Rohgaszusammensetzung und

Kenndaten regenerativ erzeugter Gase und Deponiegase

Attachment B – examples for the composition of crude gas and

characteristic data of regenerative gases and landfill gases

DVGW:

German Technical and Scientific Association for Gas and Water


Analysis: gas analysis Biomethane acc. DVGW G260 (DVGW: German Technical and Scientific Association for Gas and Water)

Gas Classification: 2. Gas family, Group H

Biogas H ( extract from DVGW G 260, table A.2, S.28)

Gas component Ch. Formula Vol-% Mi(kg/kmol)

nitrogen N2 0,75 28,020

carbon dioxide CO2 2,90 44,010

methane CH4 96,15 16,040

oxygen O2 0,20 32,00

total 100


Analysis: gas analysis Biomethane acc. DVGW G 260 (DVGW: German Technical and Scientific Association for Gas and Water)

Biomethane H+LPG ( extract from DVGW G260, table A.2 S.28)

Gas Component Ch. Formula Vol-% Mi(kg/kmol)

nitrogen N2 0,69 28,020

carbon dioxide CO2 2,68 44,010

methane CH4 90,94 16,040

oxygen O2 0,19 32,00

propane C3H8 5 44,09

butane C4H10 0,50 58,12

total 100






4) Norms and Standards for Compressors in Biogas / Biomethane Injection Plants

5) Examples



Typical Compressor Applications in Biogas-Plants:

3 – 8 bar


Product portfolio of AERZENER Maschinenfabrik

Not in the AM program

Not in the AM program







5) Examples


Comparison Screw (oil injected) and Reciprocating Compressors

Screw Compressor

(oil injected)

Recipr. Compressor

1.) Characteristic positive displacement machine displacement piston

a) Q1 – f (p) approx. constant approx. constant

b) ŋ ad tot wide range wide range

equally good equally good

c) ŋ tot – f (t) wide range wide range

2) Tip Speed medium low

3) Conveying fluctuations low low

4) Control characteristic good bad

5) Sensitivity against liguid low relatively large

6) Reaction to pressure change direct direct

7) Shafts two one

8) Design of rotors / piston robust robust

9) Discharge Pressure range high very high

10) Moment of Inertia very small very high

11) Unit weight heavy very heavy

12) Forces of gravity no heavy

12) Foundation simple special

13) silencer no pulsation damper







5) Examples


DVGW VP 265 -1

Batterie LimitsGas Treatment /

Gas Injection Plant to Gas Grids

and related Norms and Standards


Norms and Standards for Compressors and Blowers in Biogas / Biomethane Plants


Technical Regulation

Test specification VP 265-1 / April 2008

Plants for treatment of biogas and injection into natural gas grids

– Part 1: Gases generated by fermentation;

design, production, construction, testing and commissioning

Norms and Standards for Compressors and Blowers in Biogas / Biomethane Plants


ATEX 94 / 9 EG

The blowers and compressors must be designed according the ATEX directives explosion protection Zone I and or Zone II

DVGW – Merkblatt G 440:Gas Treatment Systems:

Inside the piping system: Zone 1Outside (room): Zone 1 or Zone 2

Gas Injection Systems Inside the piping system: no ZoneOutside (room): Zone 1 or Zone 2

Acc. to the ATEX – directives the costumer has to issue an self – report to the explosion risks.







Biogas / Biomethane Injection Plants

5) Examples


Project EWE – 4 x VMX 75 RD Biomethane Injection


Project Verbio / Schwedt – 4 x VMX 250 Biomethane Injection


Biomethane Compressor

16 bar g / 1400 Nm3/h

- oil injected

Biogas blower

1,0 bar g / 1600 Nm3/h / - oil free

Biomethane Compressor

3,5 bar g / 1600 Nm3/h

- oil free


…..….. questions please?

Thanks for your attention !

© 2011 Aerzener Maschinenfabrik GmbH Axel Cichon / May 2013 Renewables Energy – Compressors in Biogas / Biomethane - Plants.

Documents

biogas biomethane plants

biogas biomethane plants

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water slide

total100 slide

treatment of biogas

bar slide

program slide