ABSTRACT
Different models of IGCC processes are presented in this work. First, an IGCC process without CO₂ capture is described in detail; different types of gasifiers and performance data of existing power stations are presented. Second, a new concept of an IGCC process with an integrated oxygen transport membrane reactor and CO₂ capture is proposed. Process simulations of the stand-alone oxygen transport membrane reactor and oxygen transport membrane reactor as part of the IGCC process were carried out. The results showed that the operating conditions of the membrane reactor affect the overall performance of the IGCC process tremendously; a change in pressure from 2 to 15 bar on the permeate side of the oxygen transport membrane reactor, e.g., increases the efficiency by 5%-points.