發電機引擎使用廢食用油生質柴油排氣PM2.5上持久性有機污染物特性

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

蔡政紘(Tsai Cheng-Hung)

指導教授 ： 謝季吟 ； 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.019.2018.E02

摘要

為瞭解發電機引擎於不同負載下使用純石化柴油(Fossil diesel，即D100)及於純石化柴油中添加廢食用油生質柴油(Waste cooking oil-based biodiesel，即W)時，對排氣細微粒(Fine particulate matter，簡稱PM2.5)上持久性有機污染物之影響，本研究探討發電機引擎於1.5及3.0 kW負載下使用純石化柴油及純石化柴油中分別添加20%及40%廢食用油生質柴油之混合油品(即W20；W40)時排氣 PM2.5上持久性有機污染物特性。研究結果顯示：發電機引擎1.5 kW及3.0 kW負載下使用D100時，其排氣PM2.5上PCDD/Fs、PCBs、PBDD/Fs及PBDEs質量濃度依序分別為2.15~3.65、16.7~35.4、25.8~46.5及303~440 pg/Nm3；而PM2.5上PCDD/Fs、PCBs及PBDD/Fs毒性濃度依序分別為0.282~0.527、0.038~0.051及0.064~0.093 pg WHO2005-TEQ/Nm3。與D100相較，兩負載下發電機引擎使用W20及W40時其排氣PM2.5 上PCDD/Fs、PCBs、PBDD/Fs及PBDEs質量及毒性濃度均有所降低；排氣PM2.5所測4種POPs質量濃度之降低量由高至低依序為PBDEs >> PBDD/Fs > PCBs > PCDD/Fs，而毒性濃度之降低量由高至低依序為PCDD/Fs > PBDD/Fs > PCBs。本研究結果顯示：回收之廢食用油除可作為發電機引擎之替代燃料外，亦可減少其排氣PM2.5對環境及人體健康危害。

關鍵字

發電機引擎多溴戴奧辛/呋喃 ； 廢食用油生質柴油 ； 持久性有機污染物 ； 多氯戴奧辛/呋喃 ； 多氯聯苯 ； 多溴戴奧辛/呋喃 ； 多溴聯苯醚

並列摘要

In order to understand the impacts of emissions of fine particulate matter (abbreviated as PM2.5), we investigated the persistent organic pollutants emitted from a generator using fossil diesel (abbreviated as D100) and waste cooking oil-based biodiesel (abbreviated as W) at different engine loads. This study focused on the emission characteristics of PM2.5-bound persistent organic pollutants from the generator utilizing fossil diesel added with 20% and 40% waste cooking oil-based biodiesel (W20 and W40, respectively) as the fuels of generator at 1.5 and 3.0 kW loads. When using D100 at 1.5 and 3.0 kW loads, the mass concentrations of PM2.5-bound PCDD/Fs, PCBs, PBDD/Fs and PBDEs in engine exhaust were 2.15–3.65, 16.7–35.4, 25.8–46.5 and 303–440 pg/Nm3, respectively,; meanwhile, the corresponding TEQ concentrations of the above PM2.5-bound pollutants were 0.282–0.527, 0.038–0.051 and 0.064–0.093 pg WHO2005-TEQ/Nm3, respectively. In comparison with D100, the mass and TEQ emission concentrations of PM2.5-bound PCDD/Fs, PCBs, PBDD/Fs and PBDEs were all reduced for using the blends. The reductions of the mass concentrations in exhausted PM2.5 were in the order PBDEs >> PBDD/Fs > PCBs > PCDD/Fs, while the decrease in toxic concentration followed the order PCDD/Fs > PBDD/Fs > PCBs. The result showed that the recovered waste edible oil could be used as an alternative fuel for the generator engine to reduce the hazardous effects of PM2.5 emissions to the environment and human health.

並列關鍵字

Generator engine ； Waste cooking oil-based biodiesel ； Persistent organic pollutants ； Polychlorinated dibenzo-p-dioxin and dibenzofurans ； Polychlorinated biphenyls ； Polybrominated dibenzo-p-dioxins and Polybrominated dibenzofurans ； Polybrominated diphenyl ethers

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