Simulation of a base case for future IGCC concepts with CO2 capture

The simulation of complex IGCC plants is a useful tool for the evaluation of newtechnologies and the identification of further potential. As part of the HotVeGas project thispaper deals with the modelling of an IGCC plant with CO2 capture using technology believedto be available beyond 2020. The concept developed will be the base case for comparison ofemerging technologies and improved process integration. As simulation tools Aspen Plus isused for the gasification island and gas processing while Ebsilon Professional is applied formodelling the combined cycle.The base design is a dry feed gasifier with full water quench, air side none integrated ASU, 2stage CO conversion, acid gas removal and combined cycle. The main processes aresimulated in detail considering phenomena such as: heat and pressure losses, electrolyticdissociation, none equilibrium, pH and gas solubility. The models are all verified bymanufacture information. The model developed is found to be capable of simulating complexgasification applications. Furthermore, the optimum quench water temperature should be inthe range of 165 textdegreeC. In case of lignite the WTA condensate as alternative quench water sourcereduces efficiency by 0.3     «

The simulation of complex IGCC plants is a useful tool for the evaluation of newtechnologies and the identification of further potential. As part of the HotVeGas project thispaper deals with the modelling of an IGCC plant with CO2 capture using technology believedto be available beyond 2020. The concept developed will be the base case for comparison ofemerging technologies and improved process integration. As simulation tools Aspen Plus isused for the gasification island and gas processing while...     »