1. Solutions for Flaring Reduction Dual-Fuel & Gas Engines
Speakers : Petar PELEMIS Dipl.-Wirtschafts-Ing
MAN Diesel SE
Authors: Dipl.-Wirtschafts-Ing. Petar Pelemis, MAN Diesel SE
Dipl.-Ing. (FH) Michael Linkersdörfer, MAN Diesel SE

2. The Flaring Problem Utilization Possibilities
108 billion cubic meters of associated gas are flared and vented annually.
This contributes to global emissions of 300 million tons of carbon dioxide equivalents (CO2e)
Options for flaring reduction:
Gas reinjection
Commercial use (liquefaction)
On-site power generation.
108 billion cubic meter associated gas are equal to 125,000 MW of gas power p.a.
If utilized in gas engines, 53,000 MW electricity p.a. could be generated.
Introduction

3. Onsite Power Generation Remote Crude Oil Bore Fields, e.g. Sudan
Introduction

4. Onsite Power Generation Remote Crude Oil Bore Fields, e.g. Libya
Introduction

5. Technical Solutions Efficiency Comparison55 50 45 40 35 30 25 20 1 5 10
100
500
Low speed engine
Medium speed engine
Gas turbine
Combined cycle gas turbine
Steam turbine
Thermal efficiencies %
Unit capacity (MW)
Technical
Solutions

6. MAN Diesel Who We Are
Leading supplier of diesel engines for marine, offshore and landbased power generation.
Order volume of 2 GW/year in medium speed business (500 – kW output).
Over 150 service agencies with 24/7 availability worldwide.
First gas engine delivered in 1899.
First dual fuel engine delivered in 1923.
Technical
Solutions

7. Technical Solutions On-site Power Generation
MAN Diesel solutions for on-site power generation
utilizing flaregas
Technical
Solutions
4-stroke engines
2-stroke engines
Gas engines
Dual fuel engines
Dual fuel engines
32/40 PGI
51/60 DF
32/40 DF
16/24
ME-GI

8. PGI Engine Performance Gas Injection
PGI – the gas engine without spark plugs
High power output – comparable to diesel engines
Highest thermal efficiency combined with extremely low emissions (low NOX, low SOX and low CO2)
Ignition of pilot fuel at a hot surface inside prechamber. Low maintenance costs due to PGI concept: Ignition system without spark plugs
Gas flexibility
PGI Engine
12V32/40PGI

9. PGI Engine Performance Gas Injection
Otto principle
Low-pressure gas admission
Ignition by pilot gas injection
PGI core element
PGI concept
PGI Engine
In.
Ex.
In.
Ex.
In.
Ex. * * * * * * * * * * * * * * * * * * * * * * * * * * *
Intake of
air and gas
Compression of
air and gas
Ignition by
pilot gas fuel

10. Dual-Fuel Engine 32/40DF, 51/60DF
Fuel flexibility due to possible liquid-fuel (MDO, HFO, crude) and gaseous-fuel (natural gas, flare gas) operation.
Automatic, uninterrupted switch over from gas to diesel fuel operation and vice versa.
High efficiency and reliability.
High specific engine rating up to 1000kW/Cly.
16/24
Originally developed for LPG market.
Mixture of liquid (MDO, HFO, crude) and gaseous (natural gas, flare gas) fuels.
Special technology for low quality gases (MN < 60, high content of heavy hydrogen carbonates, low heat value).
Wide range of engine operations
18V32/40DF
DF-Engine
7L51/60DF
9L16/24

11. Performance Data Processed Gas / Electrical Power Output
Various engines for flare gas utilization available, depending on:
Quantity and quality of available flare gas
Requested fuel flexibility and available fuels
Power demand.
Maximum Quantity of Processed Flare Gas
8000
6000
Technical
Solutions
m³/h
4000
2000
18V 32/40 DF
18V 32/40 PGI
18V 51/60 DF
8L S70ME-GI
Electrical Power Output per Engine*
S70ME-GI
11,8 - 23,6 MW
51/60 DF
5,6 - 17,1 MW
32/40 PGI
5,1 - 7,7 MW
32/40 DF
2,3 - 6,8 MW
16/24
0,5 - 0,9 MW
5000
10000
15000
20000
25000
[kW]
* Based on nominal generator efficiencies of 95%.

12. Example Sanko Holding, Turkey – 3 x 18V 32/40 DF – 21,6 MW

13. Summary Onsite Power Generation Utilizing Flare Gas
Highest reliability: Engines are built for operating hours per year.
Engines offer best efficiency ratio for on-site power generation.
Providing electricity for the oil bore fields in remote areas or for local grids.
Dual-fuel engines offer high fuel flexibility.
PGI gas engine technology offers best efficiency and lowest emissions.
Different site conditions, e.g. gas quality, quantity and power demand, require project specific solutions.
For further information please visit us at the MAN Diesel stand.
Summary
Summary

14. Solutions for Flaring Reduction Dual-Fuel & Gas Engines
Speakers : Petar PELEMIS Dipl.-Wirtschafts-Ing
MAN Diesel SE
Authors: Dipl.-Wirtschafts-Ing. Petar Pelemis, MAN Diesel SE
Dipl.-Ing. (FH) Michael Linkersdörfer, MAN Diesel SE