C-14 水素含有燃料の燃焼特性に及ぼす一酸化炭素の影響の実験的検討(水素含有燃料・燃焼,一般講演)

概要

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An Oxygen-blown integrated coal gasification combined cycle (IGCC) plant with pre-combustion carbon dioxide capture and storage (CCS) is one of the most promising solutions for realizing zero emission coal power generation. In above plant, hydrogen-rich fuels with a wide variation of hydrogen and carbon monoxide contents are supplied to a gas turbine. Since large amount of CO transport is prohibited by regulation, CO containing fuel is limited to atmospheric experiments. In this paper, nitrogen diluted methane / hydrogen mixture is adopted as surrogate CCS fuel mixtures, and tested under atmospheric pressure using preliminary multi-injection burner in comparison with CO containing fuel mixture. From the test results, the following conclusions are obtained: (1) Tested surrogate fuel can be substituted for practical CCS fuel on condition that fuel lean condition is maintained for every injection point. (2) Smaller outer fuel ratio results in fuel rich condition for first circumferential injection points, and difference of NOx emission is caused by the difference of local flame temperature.
2011-07-06