A presentation on the utilisation of containerised gas engines for conversion of flare gas (associated petroleum gas) for electricity with case studies in Nigeria, Tunisia, Australia, New Zealand and Russia.

3. •Established 1989 in UK as a
engine service company,
1998 Australia
•Turnover of £208m in 2012,
approx $100m in Australia
•800 employees worldwide
•GE Jenbacher’s largest
distributor
•Purpose designed office &
warehouse facility in Adelaide
and Auckland
•Only service business
focused 100% on gas power
generation

4. • Has one product & one
focus: the GE gas engine
range
• GE Jenbacher distributor
& service provider in 10
countries
• Supplied and sold over
2.7GWe of Jenbacher
facilities
• Turnkey EPC contractor,
responsibilities include
– Control systems
– Civil works
– Buildings & enclosures
– Acoustics & ventilation
– Balance of plant
– Wiring & piping
• Full maintenance,
operation & overhaul
services

5. Territories
& Offices

6. 2012
Distributor
for
Tanzania

9. 2002 2006 2007 2008 2009 2010 2011 2012 2013

14. Customer project
focused
Installation design
Project management
Installation works
Commissioning
Maintenance
Parts stockholding
Product quality
focused
Engine design
Engine development
Engine manufacture
Parts production

17. 04/06/13

18. • Jenbacher distributor since 1998
• Based in Ikeja GRA, Lagos & Port
Harcourt
• 32 installations
• 210MWe installed/sold capacity
– Natural gas - industrial
– Natural gas – IPP
– Flare gas

19. Natural Gas,
APG (Flare
gas), Landfill Gas,
Gasfrom
anaerobic
digestion of
biomass
SewageGas
Synthetic Gases
Woodgas,
PyrolysisGas,
CokesGas

20. •Advantages:
–“Cross flow” cylinder head
(external exhaust gas
manifolds)
–Clear separation of cold
mixture inlet and hot
exhaust gas
–Exactly defined thermal
zones in the cylinder head
–Long cylinder head life time
–Better accessibility to the
exhaust gas manifolds

21. • 0.3-9.5MWe per unit
• Electrical efficiency up to 48.7% electrical efficiency
Additional benefits with multi-engine approach
• High fuel efficiency: engines constantly running at nominal load and
efficiency
• Availability and reliability: stable electrical output
• Flexibility: scheduled maintenance in sequence

22. • Heating value
Calorific value and thermal value indicate the energy content of a gas. The
former can be differentiated from the later only through the heat of
vaporization of the water resulting from combustion, the water is in liquid
form after it has already liberated its condensation heat
• Methane number
Determinant parameter for knocking resistance of a gas. It is comparable to
the Octane Number of gasoline and indicates the percentage methane
volume ratio of a methane-hydrogen mixture which, in a test engine and
under controlled conditions, indicates the same knocking resistance as the
gas to be tested.
• Laminar flame speed
Laminar flame speed is the speed at which the oxidation takes place. It is
important to evaluate the gas analysis in case of high content of inert
compounds (e.g. CO2).

24. Flare gas features
Constituent Chemical Symbol % composition
Methane CH4 60-90
Ethane C2H6 2-20
Propane C3H8 3-15
Butane C4H10 2-10
Feature Measurement
Lower heating value 11-17 kWh/Nm3
Methane number 40-65

25. 04/06/13 25

26. Design for fast, easy and flexible
installation and commissioning

27. CASE STUDIES

28. Flare gas / associated gas &
IPP
3 x J620
8.1MW
Providing power to local
communities
Corporate & social
responsibility project

29. Flare gas / off gas
Cookie-cutter enclosure
concept
3 x JMS 612

30. Waha, Tunisia
Flare gas
3 x JMS 312

31. Waha, Flare Gas Project
• Waha, located 300km south of Djerba is the site of the first associated
petroleum gas (APG) project in
• Tunisia. Here gas which would ordinarily be flared is converted into
electricity for the surrounding facilities.
• The project was jointly developed by the US-based Pioneer Natural
Resources and the Tunisian
• Government Organisation ETAP (Enterprise Tunisienne d’Activitiés
Pétroliѐres).
• The area where the generators are located is subject to extreme
environmental conditions. This led to the
• enclosures being designed to resist winds of up to 180km/h, temperatures
between -5 C and 55 C and sand-storms.◦ ◦
• The APG which is found at the site has a methane concentration of 73%
which is ideally suited to GE Jenbacher gas engines.
• The utilisation of the gas in engines, as opposed to flaring helps to reduce
carbon emissions and improve the environmental performance of the site.

32. McKee &
Mangahewa,
New Zealand
New Zealand
Flare gas
2 x JGMC320
2MWe

33. Biogas from waste
2 x J320,
2.0MWe
Landfill Gas
Project, France

34. 2 x JMC 320 GS-S.L
Electrical Output:
1,534 kW
Thermal Output:
2,196 kW
Commissioning 2001, installation by third
party

35. 3 x JMC 320 GS-S.L
Electrical Output: 3,039 kW
Thermal Output: 3,894 kW
Commissioning: June 2003

36. Clarke Energy
28 Joel Ogunnaike,
Ikeja, GRA.
Lagos.
+234 1 815 6723
www.clarke-energy.com
Waleraphael.yusuff@clarke-
energy.com