- 期刊
- OpenAccess
氣渦輪機發電機組空汙排放特性與天然氣發電應用思考
The Air Pollutants Emission Characteristics of Combined-Cycle Gas Turbines and Re-Thinking the Electricity Generations by Natural Gas-Fired Units
摘要
天然氣複循環發電機組所產生的SO_2和NO_X排放濃度雖然遠低於燃煤發電機組，但其汞排放濃度有可能與燃煤電廠煙氣經過SCR、FGD處理後的濃度相當，因此仍應儘快調查國內天然氣複循環發電機組、鍋爐或加熱爐的排氣汞濃度，或者要求相關機關訂定燃料（包括燃煤、天然氣和生質燃料等）成分規範，限制其汞含量應低於一定的門檻。而天然氣發電雖然相較燃煤燃油發電所產生的空氣污染物和CO_2排放量較低，但隨著洗煤技術的進步和燃煤機組空氣污染防制技術的提升，其排放濃度和排放量已可大幅降低（如中國大陸的超低排放），在考量台灣能源穩定性（約98%進口）和天然氣接收站不足的情況下，或許需要重新思考國內未來能源架構比例重新思考的問題。
並列摘要
The SO_2 and NO_X emission concentration emitted from combined-cycle gas turbine electricity generating units are far less than that of coal-fired power plants. However, the mercury emission concentration emitted from combined-cycle gas turbine electricity generating units are closed to that of coal-fired power plants which equipped with SCR and wet FGD. It is suggested the relevant authorities should investigate the mercury concentration in the domestic natural gas-fired units and make some fuel quality specification to limit the mercury contents in the fuel. At the concerns about CO_2 emission and energy security, we maybe need to re-thinking the Taiwan's future energy mix.