發電機引擎使用廢食用油生質柴油排氣細微粒上碳組成特性

Characteristics of PM2.5-bound carbons emitted from a diesel engine generator fueled with waste cooking oil-based biodiesel blends

吳佳瑾(Wu Chia-Chin)

指導教授 ： 陳瑞仁

國立屏東科技大學/工學院/環境工程與科學系所/碩士(2018年)

https://doi.org/10.6346/THE.NPUST.ESE.013.2018.E02

摘要

為瞭解柴油引擎發電機不同負載下使用石化柴油(Fossil diesel，即D100)及石化柴油中添加廢食用油生質柴油(Waste cooking oil-based biodiesel，簡稱WCO-Biodiesel)時，對排氣細微粒(Fine particulate matter，以PM2.5表示)及PM2.5上不同型態碳成分之影響，本研究發電機引擎在1.5 kW及3.0 kW負載下使用D100中分別添加20%及40% WCO-Biodiesel之混合生質柴油(即W20、W40)，以探討其排氣PM2.5及PM2.5上全量部分(Entire Fraction，以E-表示)、酸雨部分(Acid-Rain Fraction，以A-表示)及水溶性部分(Water-Soluble Fraction，以W-表示)等不同型態碳成分特性。
研究結果顯示：發電機引擎兩負載下使用D100、W20及W40時，排氣PM2.5中所測3種不同型態TC質量濃度之大小依序為 E-TC (平均15.3 mg/Nm3) > A-TC (平均7.14 mg/Nm3) > W-TC (平均5.92 mg/Nm3)；排氣PM2.5濃度約有88.2%是由E-TC貢獻，其中E-EC為E-OC之2.97倍。與D100相較，兩負載下使用W20及W40時均可降低其排氣PM2.5質量濃度及PM2.5上E-TC、E-OC及E-EC濃度；且PM2.5濃度之減量均以W20時(平均23.5%)較多，而E-OC濃度之減量(平均31.2%)較E-EC值(平均12.8%)高。與D100相較，兩負載下使用W20及W40時大致上可進一步降低其排氣PM2.5上全量、酸雨及水溶性等3種不同型態碳成分之濃度；兩負載下使用D100、W20及W40各油品時，其PM2.5上TC、EC及OC之濃度與含量均以全量之值最高。

關鍵字

發電機引擎 ； 廢食用油生質柴油 ； PM2.5上碳成分 ； 酸雨部分 ； 水溶性部分

並列摘要

This study investigates the emission characteristics of PM2.5 and three kinds of PM2.5-bound carbonaceous contents (entire (E-), acid-rain (A-), and water-soluble (W-) fractions) by utilizing several diesel and waste cooling oil-based biodiesel (WCO-Biodiesel) blends as the fuels of a diesel engine generator. The diesel-WCO-Biodiesel blends were prepared by adding 20% and 40% of waste cooking oil-based biodiesel into to fossil diesel to form W20 and W40, respectively, and they were used as fuels in a diesel fuel engine generator operated at 1.5 and 3.0 kW loads.
The results show that the concentrations of carbonaceous contents in the engine emission PM2.5 were in the order E-TC (15.3 mg/Nm3 in average) > A-TC (7.14 mg/Nm3 in average) > W-TC (5.92 mg/Nm3) when using D100, W20, and W40. The E-TC accounted for 88.2% of PM2.5 mass emission, while the E-EC content was 2.97 time that of E-OC. In comparison with using D100, the mass concentrations of PM2.5 and PM2.5-bound E-TC、E-OC, and E-EC could be reduced when using W20 and W40. The highest reduction of PM2.5 (23.5%) was achieved by using W20, while a more reduction ratio was found for E-OC (31.2% in average) than for E-EC (12.8% in average). This study shows that using W20 and W40 could reduce the emissions of PM2.5-bound E-TC, A-TC, and W-TC from the generator. The entire fraction (E) was the highest among the three carbonaceous contents (E-, A-, and W-) for all the TC, EC, and OC measurements.

並列關鍵字

Generator engine ； Waste cooking oil-based biodiesel ； PM2.5-bound carbonaceous ； Acid-rain fraction ； Water-soluble fraction

參考文獻

參考文獻

Akasaka, Y., Suzuki, T., Sakurai, Y., 1997. Exhaust emissions of a DI diesel engine fueled with blends of biodiesel and low sulfur diesel fuel. SAE Technical Paper.

Allen, J. O., Mayo, P. R., Hughes, L. S., Salmon, L. G., and Cass, G. R., 2001, "Emissions of size-segregated aerosols from on-road vehicles in the Caldecott Tunnel," Environmental Science and Technology,Vol. 35, pp. 4189-4197.

Alptekin, E., Canakci, M., and Sanli, H., 2012, "Evaluation of leather industry wastes as a feedstock for biodiesel production," Fuel,Vol. 95, pp. 214-220.

Arsenovic, M., Radojevic, Z., and Stankovic, S., 2012, "Removal of toxic metals from industrial sludge by fixing in brick structure," Construction and Building Materials, Vol. 37, pp. 7-14.