Chemical Quenching: Eine Option fuer zukuenftige kohlebefeuerte Gas- und Dampfturbinenkraftwerke mit integrierter Kohlevergasung

摘要

Two different types of entrained-flow gasifiers, PRENFLO und CARBO-V, are numerically simulated with the computer code CHEMCAD and analyzed regarding to their yield of combustible gases. In comparison to PRENFLO, CARBO-V generates a 15% higher gas mass flow rate and reaches a 5% higher cold gas efficiency by gasifying the same mass of coal. However, 3% less thermal power (21.7 MW_(th) high pressure steam) can be utilized from the coal gas. An IGCC power plant with a CARBO-V gasifier could reach a net efficiency which is about 1.9% higher than a plant with a PRENFLO gasifier.