DOI: 10.1002/jgrd.50643
论文题名: Imaging DOAS detection of primary formaldehyde and sulfur dioxide emissions from petrochemical flares
作者: Pikelnaya O. ; Flynn J.H. ; Tsai C. ; Stutz J.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 15 起始页码: 8716
结束页码: 8728
语种: 英语
英文关键词: Imaging DOAS
; Petrochemical Formaldehyde
; Petrochemical sulphur dioxide
; Primary Emissions
Scopus关键词: Air quality standards
; Industrial emissions
; Ozone
; Petrochemicals
; Quality control
; Sulfur
; Sulfur determination
; Sulfur dioxide
; Differential optical absorption spectrometers
; Direct observations
; Emission inventories
; Formaldehyde emission
; Houston-galveston areas
; Petrochemical facility
; Primary emissions
; Sulfur dioxide emissions
; Formaldehyde
; air quality
; atmospheric pollution
; database
; emission
; formaldehyde
; metropolitan area
; petrochemical industry
; sulfur dioxide
英文摘要: Metropolitan areas with a high number of petrochemical facilities are often struggling to meet current and future air quality standards. The Houston-Galveston area, for example, continues to be in noncompliance with the U.S. federal air quality standard of ozone, despite significant progress in mitigating air pollution. In recent years, the magnitude and role of primary emissions of ozone-forming chemicals, and in particular formaldehyde, from flares in petrochemical facilities have been discussed as a potential factor contributing to ozone formation. However, no direct observations of flare emissions of formaldehyde have thus far been reported. Here we present observations of formaldehyde and sulfur dioxide emissions from petrochemical flares in the Houston-Galveston area during the 2009 Formaldehyde and Olefin from Large Industrial Sources campaign using a new imaging differential optical absorption spectrometer (I-DOAS). Formaldehyde emissions from burning flares were observed directly above the flare stack and ranged from 0.2 to 8.5 kg/h. Unlit flares were found not to emit formaldehyde. SO2 emission rates from a burning acid gas flare ranged between 2 and 4 kg/h. None of the sampled flares coemitted HCHO and SO2 . Comparison of the emission fluxes measured by the I-DOAS instrument with those from emission inventories and with fluxes calculated from plumes detected by the long-path DOAS over downtown Houston shows that the flares observed by the I-DOAS were relatively small. While burning flares clearly emit HCHO, a larger observational database is needed to assess the importance of flare emissions for ozone formation. Key Points Burning petrochemical flares emit formaldehyde at rates of 0.3-2.5 kg/hr Co-emission of formaldehyde and sulphur dioxide from flares was not observed Small flares were observed, larger flares are expected to emit more HCHO ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63465
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Department of Atmospheric and Oceanic Sciences, University of California, 405 Hilgard Ave., 7127 Math Sciences, Los Angeles, CA 90095-1565, United States; Earth and Space Sciences Department, University of Houston, Houston TX, United States
Recommended Citation:
Pikelnaya O.,Flynn J.H.,Tsai C.,et al. Imaging DOAS detection of primary formaldehyde and sulfur dioxide emissions from petrochemical flares[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(15)