Coupling power generation with syngas-based chemical synthesis according to the so-called
'Polygeneration-Annex' concept offers economic and technical benefits. Clemens Forman assesses
the integration of incoming streams by the Annex plant from a power plant point of view across
its full load range. Analyses are done by load-dependent flowsheet simulation. The pulverized
lignite combustion power plant process is covered by two generic technical states: an existing
650 MW(el) power plant and a near future 1 100 MW(el) power plant with duo block design and dry
lignite co-firing. Modeling comprises both the flue gas path and the water-steam circuit.
Appropriate stream interfaces are identified and determined depending on the load status. The
technical feasibility of integration can be proven.
