Feasibility study for installation a new cogeneration power plant with steam supply to the steam manifold for the demand of the common chemical plant.The new cogeneration power plant comprises a gas turbine, a supplementary fired HRSG, a back pressure turbine and the BoP for the new installation. The priority of the new cogeneration power plant is to burn, respectively to dispose several gases from chemical processes, without an exceeding the required emission values in to the atmosphere, which are stipulated by law as well as feeding steam into the manifold of the common chemical plant.

Generation of electrical power has no importance. 

Special challenge: Installation in an existing plant, which has to continue operation during the implementation activities.

Owner’s Engineer during the planning and realization phase for a new Combined Cycle Power Plant (CCPP), provided as a 2-2-1 configuration, comprising a total capacity of about 350 MW_el.

Both the GTs are provided by a standard combustor for the firing of 3 different fuels, namely Light Crude Oil (LCO), Distillate Oil (DO) and Natural Gas (NG). The currently provided standard combustors shall be designed in a manner, that a future replacement of a Dry Low NOx (DLN) combustor system shall be possible.

The basic configuration of the 350 MWel Combined Cycle Power Plant (CCPP) is:Two GE-gas turbine Frame 9E, one Siemens- steam turbine SST900; two NEM waste heat boiler 2-pressure drum boiler, direct seawater cooling system and a RO sea water desalination system. The seawater intake is 1.200m from coast. The diffusor of the outfall is located 500m from coast. The CCPP is located approximate 500 m from the coast. Both the cooling pipe systems (made of special concrete) are complete performed by a so-called micro tunneling.

Feasibility study regarding the replacement of an installed condensing steam turbine of the 100 MWel type by a new condensing / extraction steam turbine with the same power output, incl. the installation of a new generator and auxiliaries in an industry power plant.

The installation of the new steam turbine, generator and all auxiliaries should be in a new turbine hall. This measure was decided to ensure an uninterrupted steam supply to the plant. The steam supply to the industry plant was stopped just during conversion works.

Priority was the uninterrupted steam supply to the plant.