The application of extra-heavy oil, such as Orimulsion^[○!R] fuel, to Integrated Gasification Combined Cycle Power Plant attracts attention recently. This report presents the investigation results of adaptability of multi-fuel gasification using coal and orimulsion in fuel in an air-blown two stage entrained flow gasifier. It was cleared that the method of multi-fuel gasification, orimulsion fuel to the combustor and coal to the reductor, was the most excellent judging from the evaluation of operational performance and plant thermal efficiency.
