Pilot tests on the catalytic filtration of dioxins

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Title:	Pilot tests on the catalytic filtration of dioxins
Authors:	張木彬;Hung, Pao Chen;Chang, Shu Hao;Lin, Syuan Hong;Buekens, Alfons;Chang, Moo Been
Contributors:	工學院環境工程研究所
Keywords:	Activated carbon;Adsorption;air;Applied sciences;Atmospheric pollution;Benzofurans - isolation & purification;Catalysis;catalysts;Charcoal - chemistry;Cities;Combustion and energy production;Dibenzofurans, Polychlorinated;Dioxins;Dioxins - isolation & purification;dust;Exact sciences and technology;filtration;Filtration - methods;Flue gas;Gases - analysis;Incineration;Incineration - instrumentation;Municipal solid waste;Pilot Projects;Pollution;polychlorinated dibenzodioxins;polychlorinated dibenzofurans;Prevention and purification methods;Solid Waste - analysis;toxicity
Date:	2014-04-01
Issue Date:	2026-04-23 15:07:19 (UTC+8)
Publisher:	American Chemical Society;Washington, DC: American Chemical Society
Abstract:	摘要： Tests were conducted to study the removal efficiencies (REs) of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) from flue gas during a test program involving a pilot-scale catalytic filter (CF) module and a full-scale municipal solid waste incinerator (MSWI). The REs attained with the CF on a side stream and a conventional activated carbon (AC) injection and baghouse filtration system in the full-scale MSWI are evaluated via simultaneous sampling and analysis of both gas- and particle-phase PCDD/Fs. Flue gas without AC is supplied to the pilot-scale CF module for evaluating its RE capabilities. The REs achieved with the CF at 180 °C are 96.80 and 99.50%, respectively, for the gas phase and the particulate contained. The gas-phase PCDD/F RE rises significantly at 200 and 220 °C. The air/cloth (A/C) ratio defined as is the gas flow rate (m3/min) divided by the filtration area (m2) also affects the PCDD/F RE, especially in the gas phase. At 180 °C, a RE of gas-phase PCDD/Fs of 95.94% is attained with the CF at 0.8 m/min, yet it decreases at higher A/C ratios (1 and 1.2 m/min). A significantly lower toxic equivalency (TEQ) concentration (0.71 ng I-TEQ/g) was measured in the filter dust of the CF module compared to that collected by the AC adsorption system (4.18 ng I-TEQ/g), apparently because of the destruction of gas-phase PCDD/Fs by the catalyst. 其他題名： Environ. Sci. Technol 出版者： Washington, DC: American Chemical Society 出版日期： 2014-04-01 出處： Environmental Science & Technology, 2014-04, Vol.48 (7), p.3995-4001 資源來源： American Chemical Society Journals 版權： Copyright © 2014 American Chemical Society 版權： 2015 INIST-CNRS 版權： Copyright American Chemical Society Apr 1, 2014 識別號： ISSN: 0013-936X 識別號： ISSN: 1520-5851 識別號： EISSN: 1520-5851 識別號： DOI: 10.1021/es404926g 識別號： PMID: 24617498 識別號： CODEN: ESTHAG
Appears in Collections:	[Graduate Institute of Environmental Engineering ] journal & Dissertation

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