title: A new alternative paraffinic-palmbiodiesel fuel for reducing polychlorinated dibenzo-p-dioxin/dibenzofuran emissions from heavy-duty diesel engines.
abstract: Polychlorinated dibenzo-p-dioxin/dibenzofuran (PCDD/F) emissions from heavy-duty diesel engines (HDDEs) fuelled with paraffinic-palmbiodiesel blends have been rarely addressed in the literature. A high-resolution gas chromatograph/high-resolution mass spectrometer (HRGC/HRMS) was used to analyze 17 PCDD/F species. Experimental results indicate that the main species of PCDD/Fs were OCDD (octachlorinated debenzo-p-dioxin) and OCDF (octachlorodibenzofuran), and they accounted for 40-50% of the total PCDD/Fs for all test fuels. Paraffinic-palmbiodiesel blends decreased PCDD/Fs by 86.1-88.9%, toxic PCDD/Fs by 91.9-93.0%, THC (total hydrocarbons) by 13.6-23.3%, CO (carbon monoxide) by 27.2-28.3%, and PM (particulate matter) by 21.3-34.2%. Using biodiesel blends, particularly BP9505 or BP8020, instead of premium diesel fuel (PDF) significantly reduced emissions of both PCDD/Fs and traditional pollutants. Using BP9505 (95vol% paraffinic fuel+5vol% palmbiodiesel) and BP8020 instead of PDF can decrease PCDD/F emissions by 5.93 and 5.99gI-TEQyear(-1) in Taiwan, respectively.
authors.affiliation: Institute of Environmental Engineering, National Sun Yat-sen University, Kaohsiung 804, Taiwan. yclin@faculty.nsysu.edu.tw
authors.forename: Yuan-Chung
authors.initials: YC
authors.lastname: Lin
authors.forename: Shou-Heng
authors.initials: SH
authors.lastname: Liu
authors.forename: Yan-Min
authors.initials: YM
authors.lastname: Chen
authors.forename: Tzi-Yi
authors.initials: TY
authors.lastname: Wu
mesh_terms: D028023:Arecaceae / Q000737:chemistry*; D056804:Biofuels / Q000032:analysis*; D002138:Calibration; D004785:Environmental Pollutants / Q000032:analysis*; D004787:Environmental Pollution / Q000517:prevention & control*; D010232:Paraffin / Q000737:chemistry*; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis; D013048:Specimen Handling; D013055:Spectrophotometry, Infrared; D013455:Sulfur / Q000032:analysis; D013624:Taiwan; D001335:Vehicle Emissions / Q000032:analysis*
chemical_list: D056804:Biofuels; D004785:Environmental Pollutants; D000072317:Polychlorinated Dibenzodioxins; D011084:Polycyclic Aromatic Hydrocarbons; D001335:Vehicle Emissions; D013455:Sulfur; D010232:Paraffin