Copenhagen, 17 August 2007. PBB GmbH, the cogeneration IPPC (Independent Power Producer Company) based in Oldenburg, Germany, has signed a contract with MAN Diesel A/S’s Polish licensee H. Cegielski - Poznan S.A. for the delivery of a CHP (Combined Heat and Power) plant to a site in the city of Brake, near Bremen, Germany.
An MAN B&W 7L35MC-S engine will power the plant, supplying 4.2 MWel to the national grid and 3.6 MWth to a palm-oil refinery situated nearby. The engine is a two-stroke, low-speed, crosshead uniflow diesel engine. It will be fired by crude palm oil with a Total Acid Number (TAN) of up to 15 mg/KOH/g, at a heat rate of 7,400 kJ/kWh at site ambient conditions, corresponding to an efficiency of 48.6%; plant total efficiency in CHP-mode will exceed 87%.
The plant will be equipped with an SCR (Selective Catalytic Reduction) catalyst, an oxidation catalyst and an electrostatic precipitator to fulfill the following strict, German TA-Luft air-emissions legislation*:
| NOx |
<500 mg/Nm3 |
| CO |
<350 mg/Nm3 |
| HC |
<75 mg/Nm3 |
| Particulate |
<20 mg/Nm3 |
| Aldehyde |
<20 mg/Nm3 |
| Phenole |
<20 mg/Nm3 |
*All values at 5% O2, dry gas
The order for this stationary engine underlines the importance of maximum efficiency when running on expensive, CO2-neutral fuels. It also contains an option for additional engines of the same type.
Download picture of engine
here.