Open AccessProblem and Countermeasure Analysis of IGCC Combustion Gas Turbine Fueled with Low Heating Value Syngas
Author(s) -
Hongtao Liu,
Xue Li,
Xueqing Wang,
Huanxiang Zhang
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/603/1/012035
Subject(s) - syngas , integrated gasification combined cycle , combustion , waste management , environmental science , engineering , chemistry , hydrogen , organic chemistry
IGCC technology is recognized as one of the cleanest and most efficient power generation technologies. Inferior fuel is gasified into clean syngas by IGCC gasification reaction. Syngas is then sent to combustion gas turbine and combusted to generate power. Problem and countermeasure of IGCC combustion gas turbine fueled with low heating value syngas is analyzed in this paper. Main fuel components and combustion characteristics of syngas are significantly different with that of conventional natural gas. Diffusion combustion mode is adopted to match syngas combustion characteristics. The gas turbine will trip due to unstable combustion if direct burning syngas at low load case. Alternative fuels should be used at low gas turbine load case. There is an appropriate load window for fuel switching. Fuel switching at 50% load within 10 minutes is selected in this paper.