Abstract
As reported in GHGT-12, CRIEPI engaged in NEDO project to develop CO2 capture IGCC system, whose efficiency is more than 42%(HHV), as joint project with Kyushu University since 2008. In this system, exhaust gas is recirculated to gasifier and gas turbine combustor, just as oxy-fuel combustion boiler. In 2015, CRIEPI started 2nd phase 5 years’ NEDO project with assistance of Mitsubishi Heavy industries and Mitsubishi Hitachi Power Systems. In this phase, MHI uses 50TPD gasifier and 1/3 scaled GT combustion test stand to obtain data to design large scale plant. On the other hand, CRIEPI modify its 3TPD gasifier to clarify O2/CO2 gasification performance. In addition, hot gas clean-up system will be examined in above 2 gasifiers. CRIEPI install exhaust gas recirculation unit to clarify fundamental characteristics of semi-closed cycle gas turbine. This paper is to show the progress after GHGT-12 and whole picture of 2nd phase project by CRIEPI.
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