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Immingham Combined Heat & Power Plant
ConocoPhillips refinery, Immingham, Lincolnshire, UK
associated engineer
Not known
date  2002 - 2004
era  Modern  |  category  Power Generation  |  reference  TA166171
At the time of writing (early 2010), Immingham was Europe’s largest combined heat & power (CHP) plant. It supplies the Total Lindsey oil refinery and the ConocoPhillips Humber refinery, which are its neighbours.
The power station has a total net output that can be varied from 150MW to a maximum of 734MW. Excess electricity generated is passed to the UK's National Grid. The plant runs on natural gas, with liquid fuel as a back up.
The CHP part of the power station has two 260MW combined cycle 9001FA gas turbine generating sets, with boilers, each connected to a heat recovery steam generator with supplementary firing. These supply heat (steam) and power (electricity) to the Humber refinery.
Two auxiliary boilers, connected to two 115MW steam turbines, produce steam at a pressure of 5kN per square metre. They supply steam to both refineries.
The four boilers share a four-flue chimney. Each boiler can supply more than half of the refineries’ maximum steam demands, which means that boilers can be maintained without loss of supply.
The £350m plant is operated by ConocoPhillips, and uses 20 percent less fuel and emits 25 percent less carbon dioxide than plants producing heat and power separately. By comparison with a coal-fired power station, it will save some three million tonnes of carbon dioxide annually.
Immingham CHP plant was among the first to receive an Integrated Pollution Prevention & Control Permit. It also complies with the EU Cogen Directive and the UK CHP Programme. Its operation replaces combustion at the refineries (for steam), recovers gas that would have been flared and reuses wastewater from the Humber refinery.
In October 2006, it was announced that a further £210m would be spent to increase the total output to 1,180MW by summer 2009. A carbon capture facility is also a possibility in the future.
Main contractors: Foster Wheeler Energy, Kier
Turbine and generator supply: General Electric, Franco Tosi
Heat recovery steam generator: Nooter Eriksen
Research: ECPK
bibliography
www.conocophillips.co.uk
www.hydrocarbons-technology.com
www.modernpowersystems.com
Location

Immingham Combined Heat & Power Plant