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DOI	10.1016/j.atmosenv.2020.117723
	Effect of industrial flare DREs derived by CFD and WERF on ozone pollution through CAMx simulation
	Ge S.; Wang S.; Xu Q.; Ho T.
发表日期	2020
ISSN	1352-2310
卷号	238
英文摘要	Flare is the last safety measure for daily operations in oil, gas & chemical process industries (OGCPI). However, an excessive flaring releases large quantity of emissions of VOCs and NOx, which may suddenly enhance local ozone as a secondary pollution. Normally, the flare destruction and removal efficiency (DRE) of 98% or 99% is regulated as the national standard and presumed for industrial practices in the U.S. Unfortunately, real DRE values could be much lower than the standard due to impact factors including various meteorological and operating conditions such as the cross-wind speed, flare jet velocity and heating value of combustion. Thus, it is critically important to explore the sensitivity of the regional ozone impact due to low DREs of OGCPI flare combustions. In this paper, a systematic methodology has been developed to examine ozone impacts due to the low flare DREs, which have never been systematically studied before. The DRE formulas were derived from computational fluid dynamic (CFD) modeling and Water Environment Research Foundation (WERF) results and then employed to recompile the point source emission inventory. After that, comprehensive air quality model with extensions (CAMx) was employede to simulate and quantify local ozone changes impacted by flare emissions of OGCPI. Case studies indicate that the maximum hourly ozone increments due to the low DRE through CFD and WERF modeling is 0.18 ppb and 1.3 ppb, respectively. This study could enrich fundamental understandings of industrial point source emissions and provide the quantitative and valuable support for the ozone pollution caused by OGCPI flare emissions under low DRE instead of standard values. © 2020 Elsevier Ltd
关键词	CAMx DRE Flare Industrial emissions Ozone pollution
语种	英语
scopus关键词	Accident prevention; Air quality; Chemical industry; Chemical operations; Computational fluid dynamics; Ozone; Wind; Chemical process industry; Comprehensive air quality model with extensions; Destruction and removal efficiencies (DRE); Industrial practices; Point source emissions; Secondary pollution; Systematic methodology; Water environment research foundations; Industrial emissions; nitrogen oxide; ozone; volatile organic compound; air quality; computational fluid dynamics; heating; ozone; point source; point source pollution; simulation; volatile organic compound; air quality; Article; combustion; computational fluid dynamics; heating; meteorology; methodology; petrochemical industry; pollution; priority journal; quantitative analysis; simulation; velocity; wind speed; United States
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249034
作者单位	School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China; Dan F. Smith Department of Chemical Engineering, Lamar University, Beaumont, TX 77710, United States; Department of Computer Science, Lamar University, Beaumont, TX 77710, United States
推荐引用方式 GB/T 7714	Ge S.,Wang S.,Xu Q.,et al. Effect of industrial flare DREs derived by CFD and WERF on ozone pollution through CAMx simulation[J],2020,238.
APA	Ge S.,Wang S.,Xu Q.,&Ho T..(2020).Effect of industrial flare DREs derived by CFD and WERF on ozone pollution through CAMx simulation.ATMOSPHERIC ENVIRONMENT,238.
MLA	Ge S.,et al."Effect of industrial flare DREs derived by CFD and WERF on ozone pollution through CAMx simulation".ATMOSPHERIC ENVIRONMENT 238(2020).