Characteristics of PM2.5 and VOCs emission from chemical fiber industry

doi:10.3785/j.issn.1008-973X.2017.01.018

JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE)

Environmental and Energy Engineering

Characteristics of PM2.5 and VOCs emission from chemical fiber industry

CHEN Wen cong, HOU Yi wen, WU Jian, WANG Li hong

1. College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China;
2. Environmental Science Research and Design Institute of Zhejiang, Hangzhou 310007, China

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Abstract

Chemical fiber industry in China was discussed by using local emission factors and its VOCs emission inventories were constructed via time, space and subsectors, respectively. Both emission characteristics and correlations between particle matter with diameter of less than 2.5 μm (PM2.5), VOCs and other factors (NOx, SO2, PM10, CO and regions, sub-sectors) were presented with the Salford Predictive Miner. Results showed that VOCs emission from chemical fiber industry in China had a rapid rise in recent years. Rayon was recognized as the key VOCs emission source for chemical fiber industries, accounting for more than 60% of total VOCs. For Zhejiang province, NOx emission reduction played a key role for controlling PM2.5 index values. A large amount of low concentrations VOCs emissions should be limited for keeping a small PM2.5 index. More attention should be paid on the control of total NOx emissions amount and VOCs emission concentrations when developing air pollution control measures and policies in chemical fiber industry.

Published: 01 January 2017

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CHEN Wen cong, HOU Yi wen, WU Jian, WANG Li hong. Characteristics of PM2.5 and VOCs emission from chemical fiber industry. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2017, 51(1): 145-152.

化纤行业PM2.5和VOCs排放特性研究

以化纤行业为研究对象,采用本地排放因子,按时间、空间、子行业分别建立VOCs的源排放清单,应用Salford Predictive Miner（SPM）数据挖掘工具分析浙江省化纤行业污染物排放特征,分析PM2.5和VOCs以及其他大气污染因子（NOx、SO2、PM10、CO）之间的关联性.结果显示,近年来我国化纤行业VOCs排放量快速上升,子行业中人造纤维VOCs排放量占比超过60%.在浙江省化纤行业中,低浓度的VOCs排放会对PM2.5排放量产生极敏感的影响,对PM2.5排放量影响最大的是NOx的排放量.制定化纤行业大气污染控制措施和政策时,加强控制NOx排放总量和VOCs排放浓度十分必要.

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