Oxygen-blown IGCC
Coal is gasified in a gasifier to generate syngas with carbon monoxide (CO) and hydrogen (H2) being the main components. After this, the heat of the syngas is recovered in a syngas cooler and a gas clean-up unit removes impurities and sulfur from the syngas. Next, the syngas is combusted in the gas turbine combustor to drive the gas turbine. The combustion exhaust gas in the gas turbine is emitted from the stack after having its heat recovered by a heat recovery steam generator. Meanwhile, the steam turbine is driven by steam generated in the syngas cooler and the heat recovery steam generator.A combined cycle is then performed with this gas turbine and steam turbine. This makes it possible to achieve power generation efficiency beyond that of conventional pulverized coal-fired power generation.
Demonstration Facility / Schematic Flow
Demonstration Schedule
Demonstration Results
Overview of Oxygen-blown IGCC with CO2 Capture
Part of the syngas after desulfurization diverges and is sent to the added CO2 capture unit. The shift reactor converts the carbon monoxide (CO) in the syngas with steam (H2O) to carbon dioxide (CO2) and hydrogen (H2). After that, only the CO2 is captured in the CO2 absorber. The syngas after the CO2 capture becomes fuel rich in hydrogen (H2) and is then sent to the gas turbine.
Demonstration Facility / Schematic Flow
Low Temperature Operating Sour Shift Catalyst Demonstration
We will conduct a demonstration of a sour shift catalyst that causes the syngas before desulfurization to shift react at a low temperature in order to reduce the amount of steam added in the shift reaction and capture the CO2 with even higher efficiency. We will then verify the long-term reliability of the catalyst through long-term operation.
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The 10 largest coal producers and exporters in Indonesia:
The 10 largest coal producers and exporters in Indonesia:
