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液態天然氣氣化之燃料混燒鍋爐NOx減量排放研究 = NOx reduct...

國立高雄大學化學工程及材料工程學系碩士班

液態天然氣氣化之燃料混燒鍋爐NOx減量排放研究 = NOx reduction in the mixing fuels-firing Boilers for gasification of Liquid Natural Gas (LNG)

紀錄類型:	書目-語言資料,印刷品 : 單行本
並列題名:	NOx reduction in the mixing fuels-firing Boilers for gasification of Liquid Natural Gas (LNG)
作者:	蔡瑞峰,
其他團體作者:	國立高雄大學
出版地:	[高雄市]
出版者:	撰者;
出版年:	2014[民103]
面頁冊數:	113葉圖,表 : 30公分;
標題:	天然氣
標題:	NG
電子資源:	https://hdl.handle.net/11296/23r5rs
附註:	參考書目：葉100-104
摘要註:	本研究乃利用兩座16ton/hr低壓蒸氣鍋爐進行現場實地測試，以不同之空氣量(Air mass)／天然氣Natural Gas,NG)燃氣進料配比為操作變數，探討其對氮氧化物、鍋爐出口溫度、煙道氣出口溫度、過量空氣O2量，煙道氣流速等之影響，尋找操作之最佳化條件，並建立節能減碳且能夠使氮氧化物降低之排放系統，提供低壓高效率蒸氣鍋爐且環保之最適化操作條件。測試結果顯示，經由不同空氣量(Air mass)／天然氣(NG)進料配比由5調整為1.8其可節省燃料之成本及可減少二氧化碳(CO2)之排放量。氮氧化物排放濃度由167ppm(mg/m3)降低至152ppm(mg/m3)，因此每年可減少氮氧化物之排放量，而煙道氣平均流速由14.8m/s降低至12.8m/s，可節省空氣污染費支付。再藉由調整過量空氣O2量由4%降低至2%，可節省燃料成本。氮氧化物排放濃度由184.3ppm(mg/m3)降低至172.2ppm(mg/m3)，可減少氮氧化物之排放量。所以經由改變空氣量/天然氣進料配比與降低過量空氣O2量，不但可降低排放氮氧化物之濃度，更可以節省空汙費成本，進一步找出最經濟及最佳化之操作方法。 A study through different Air mass / Natural Gas(NG) feeding ratio as operation variables via two 16 ton/hr low-pressure boiler in a full-scale plant was carried out to probe into their influence on nitrogen oxides, boiler outlet temperature, flue outlet temperature, O2 Volume in excess air and flow rate of flue gas. The mission was to find the best operation conditions for establishing a system that saves energy and with less nitrogen oxides emission, and also to provide a highly efficient as well as environmental friendly conditions for operating low pressure boilers. Test result showed that, by adjusting different Air mass/NG fuel gas feeding ratio from 5:1 to 1.8:1, the fuel cost was down per year and reduced of CO2 emission per year. Concentration of nitrogen oxides was lowered from 167ppm(mg/m3) to 152ppm(mg/m3), thus reduced of NOX emission per year. The average air emission rate was also cut down from 14.8m/s to 12.8 m/s, which may lead to a saving of air pollution charge each year. Adjusting different O2 volume in excess air from 4% to 2%, the fuel cost was down per year. Concentration of nitrogen oxides was lowered from 184.3 ppm(mg/m3) to 172.2ppm(mg/m3), thus reduced of NOX emission per year. Hence, through changing the Air mass/NG feeding ratio and O2 volume in excess air, not only may the concentration of NOX emission be brought down but also the air pollution charge be lowered. Furthermore, the most economical and appropriate operation model may be identified.

液態天然氣氣化之燃料混燒鍋爐NOx減量排放研究 = NOx reduction in the mixing fuels-firing Boilers for gasification of Liquid Natural Gas (LNG)
蔡, 瑞峰

液態天然氣氣化之燃料混燒鍋爐NOx減量排放研究 = NOx reduction in the mixing fuels-firing Boilers for gasification of Liquid Natural Gas (LNG) / 蔡瑞峰撰 - [高雄市] : 撰者, 2014[民103]. - 113葉 ; 圖,表 ; 30公分.
參考書目：葉100-104.
天然氣NG

液態天然氣氣化之燃料混燒鍋爐NOx減量排放研究 = NOx reduction in the mixing fuels-firing Boilers for gasification of Liquid Natural Gas (LNG)
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