Abstract
From viewpoints of diversification of fuel and effective energy utilization, it is very effective to use extra heavy oil such as refinery residue in integrated gasification combined cycle system (IGCC) because IGCC is high thermal efficient and excellent in environment. Since refinery residue is high viscosity, steam is necessary to atomize the oil when gasifying. The steam has roles to moderate temperature in a gasifier and as gasifying agent by water gas reaction, too. In this research, the gasification tests with refinery residue were carried out by using "Research Gasifier for liquid fuel" that is a bench scale gasifier, and the effect of steam feed rate to a gasifier on gasification characteristics was quantitatively examined. Furthermore, heat and material balance calculation was done based on the data obtained from the gasification tests. The index to examine high thermal efficient and stable operating condition for a commercial size gasifier was made by the calculation.
