石炭ガス化複合発電の技術展望

概要

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Integrated Gasification Combined Cycle (IGCC) is regarded as the most powerful candidate for new coal firing power plants in the next generation because of the following two points. One is its significantly high net thermal efficiency of 46-50+% which can be achieved with the increase of gas turbine inlet temperature. The other is its superior environmental performance which is attained by means of the conversion process from"dirty"coal to"clean"purified gas and the ash disposal of glassy slag. 200T/D IGCC pilot plant has been tested since 1991 by the IGC Research Association under the entrust of NEDO. These essential technologies for IGCC have almost verified at this pilot plant with the achievement of one month stable and continuous operation in March 1955. Based on these successful results, Mitsbishi has newly designed "THE IGCC system", which provides the highest net thermal plant efficiency and environment benign in cost effective manner.
1996-09-10