January 2018

INEOS in Cologne is constructing a new highly-efficient gas and steam turbine plant. The power plant division of Standardkessel Baumgarte GmbH is supplying the steam generator with ancillary trades for the new power plant.

INEOS in Cologne is investing in the new combined-cycle plant in order to safeguard the power supply at the location in the long term under the most modern ecological and economic conditions. For that purpose, existing boilers will be replaced by the new combined-cycle plant. The new boiler will generate steam by making use of the waste heat from the gas turbine and the combustion heat of various residual gases from the existing chemical plants. The steam will be passed on to a backpressure steam turbine and used for electricity generation and also fed into various steam networks of the plant itself.

The steam generator can be operated as a gas-turbine heat recovery boiler with auxiliary firing system or entirely with fresh air. A “flying” changeover can be made between the two modes of operation.

Moreover, the future combined-cycle plant meets a lot of other requirements. Apart from the high construction standards from the petrochemical industry in the plant, gases with a high level of fuel nitrogen will also be fired.

A total of six different liquid and gaseous residues will be fed to the future steam generator and thermally utilized. Of the total of six burners, two burners will fire the gases with high levels of fuel nitrogen in a brick-lined combustion chamber and four other burners will fire the additional residues in a secondary combustion chamber.

Compared with the existing plant the new combined-cycle plant will achieve a higher efficiency and respond more flexibly to the future steam demand of the production plants.

The new power plant is to go into operation in 2020.

Technical data:

Steam capacity: 240 t/h
Steam pressure: 109 bara
Steam temperature: 530°C