| Title: | "Emission factors and source profiles of VOCs emitted from coke production in Shanxi, China" |
| Author(s): | Mu L; Feng C; Li Y; Li X; Liu T; Jiang X; Liu Z; Bai H; Liu X; |
| Address: | "College of Environmental Science and Engineering, Laboratory of Compound Air Pollutions Identification and Control, Taiyuan University of Technology,Taiyuan, 030024, China; Institute of Nuclear Environmental Science, China Institute for Radiation Protection, Taiyuan, 030006, China. Electronic address: muling@tyut.edu.cn. College of Environmental Science and Engineering, Laboratory of Compound Air Pollutions Identification and Control, Taiyuan University of Technology,Taiyuan, 030024, China" |
| DOI: | 10.1016/j.envpol.2023.122373 |
| ISSN/ISBN: | 1873-6424 (Electronic) 0269-7491 (Linking) |
| Abstract: | "Coking plants in China generate a substantial amount of volatile organic compounds (VOCs). The emission factors (EFs) of VOCs from coking plants are not well known, and thus, this study characterized the VOCs in the emissions from four coking plants in Shanxi, China. The EFs of VOCs from different stages of the coking process were calculated, and coal charging exhibited the highest EFs of VOCs, followed by the flue gases from combustion of coke oven gas, wastewater treatment, coke pushing and chemical byproduct recycling. The VOCs in emissions differed by coking process. Alkanes, aromatics and alkenes were the main VOCs emitted during the coking, wastewater treatment and chemical byproduct recycling processes, respectively. To effectively control the contribution of VOCs from coking processes to secondary organic aerosols and ozone formation, attention should be given to wastewater treatment and coal loading processes. The mean annual weight of VOCs emitted from coking plants in China from 2019 to 2021 was estimated to be 32.91 Gg with coking, chemical byproduct recycling, and wastewater treatment processes accounting for 91.34%, 7.85%, and 0.80% of total VOCs, respectively. An uneven spatial distribution of VOCs emissions in China was identified, with Shanxi, Shaanxi, Hebei, Inner Mongolia and Shandong being the largest contributors" |
| Keywords: | *Coke *Air Pollutants/analysis *Volatile Organic Compounds/analysis Environmental Monitoring Coal China *Ozone/analysis Coke production Emission factors SOA formation potential Volatile organic compounds; |
| Notes: | "MedlineMu, Ling Feng, Chuanyang Li, Yangyong Li, Xiaofan Liu, Tian Jiang, Xin Liu, Ziye Bai, Huiling Liu, Xiaofeng eng England 2023/08/15 Environ Pollut. 2023 Oct 15; 335:122373. doi: 10.1016/j.envpol.2023.122373. Epub 2023 Aug 12" |
