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Pre‐combustion carbon capture based on integrated gasification combined cycle ( IGCC ) technology represents one approach to fossil fueled power generation with carbon capture and storage ( CCS ) in the short run. It is based on the generation of a syngas often from coal followed by a complex syngas treatment before combustion in a combined cycle power block. Because of the gas treatment and the higher combined cycle efficiency, IGCC power plants are regarded as highly efficient and low emission power plants. If designed for CCS , CO 2 will be separated from the fuel gas before combustion in the gas turbine. The CO 2 is captured at advantageous conditions with liquid solvents and obtained at a high quality. All major process units forming an IGCC power plant are well demonstrated in the electricity generation sector or the chemical industry. However, IGCC plants feature higher complexity and significantly higher capital investment than conventional power plants. Despite some demonstration plants, the technology has not reached full maturity or availabilities as they are achieved by competing coal power plants. Consequently, it is still yielding high costs of electricity. A new approach to overcome economic drawbacks and with the potential to integrate renewable with fossil power generation is given by polygeneration concepts. It often relies on the combination of IGCC with coal‐to‐liquids routes allowing for the coproduction of electricity and synthesis products. Polygeneration allows for a significant reduction of CO 2 emissions by integrating renewable energy sources. However, conceptual and technological development is required for both, IGCC and polygeneration plants, for wider future application.

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The chemical and physical modelling and transient simulation of a plant with chemical reactors can be useful within dimensioning, optimisation, operation studies and analysing of time critical processes. Therefore, a reactor model for thermodynamic equilibrium conditions has been implemented. The Model is based on the free Modelica Fluid library and contains correlations for heat and mass transfer and pressure drop. The model contains the components: H 2 , CO, CO 2 , H 2 O, CH 4 , N 2