Primary PM2.5 and trace gas emissions from residential coal combustion: assessing semi-coke briquette for emission reduction in the Beijing-Tianjin-Hebei region, China
Primary PM2.5 and trace gas emissions from residential coal combustion: assessing semi-coke briquette for emission reduction in the Beijing-Tianjin-Hebei region, China
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住宅燃煤产生的一次 PM2.5 和微量气体排放：评估中国京津冀地区兰焦型煤的减排效果
DOI：
10.1016/j.atmosenv.2018.07.031
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发表时间：
2018-10
影响因子：
5
通讯作者：
Cao Junji
中科院分区：
文献类型：
--
作者：
Tian Jie;Ni Haiyan;Han Yongming;Shen Zhenxing;Wang Qiyuan;Long Xin;Zhang Yong;Cao Junji
为了应对严重的雾霾污染，中国国务院于2013年为京津冀地区设定了pm2.5改善目标。为了实现住宅部门的目标，在财政补贴的帮助下，人们正在考虑用半焦型煤代替传统的原煤，但有关其排放和对空气质量影响的信息有限。对一种典型半焦型煤及其母材（烟煤原煤块）和三种传统煤（烟煤原煤块、无烟煤原煤块和无烟煤型煤）进行了室内试验，确定了其排放因子（EFs）。与母材相比，半焦型煤的初级PM2.5、有机碳（OC）、元素碳（EC）、16种多环芳烃组分（PAHs）、SO42−、NO3−、有害微量元素（HTEs）和nox的EFs显著降低。以北京地区为例，2015年采用半焦型煤替代原煤后，居民燃煤排放的主要污染物PM2.5减少91.6%，OC减少94.0%，EC减少99.6%，PAHs减少99.9%，NO3−减少94.2%，HTEs减少45.6%，nox减少70.9%，SO2减少22.3%。用半焦型煤或无烟煤型煤代替原煤，SO42−的负荷量明显增加。制定了模拟减排的地理分布，以确定减排热点，并帮助制定清洁能源政策。用半焦型煤替代传统原煤显然可以显著改善北京和中国其他地区的环境。
In response to severe haze pollution, the Chinese State Council set PM2.5improvement targets for the Beijing-Tianjin-Hebei (BTH) region in 2013. To achieve the targets for the residential sector, semi-coke briquettes are being considered as a replacement for traditional raw coals with the help of financial subsidy, but information on the emission from them and the impacts on the air quality is limited. Laboratory experiments were conducted to determine emission factors (EFs) for a typical semi-coke briquette, its parent material (bituminous raw-coal-chunk) and three types of traditional coals (bituminous raw-coal-chunk, anthracite raw-coal-chunk and anthracite coal-briquette) extensively used in BTH. Compared with the parent material, significant lower EFs of primary PM2.5, organic carbon (OC), element carbon (EC), the sum of 16 polycyclic aromatic hydrocarbon components (PAHs), SO42−, NO3−, hazardous trace elements (HTEs) and NOxwere found in semi-coke briquette. A scenario for the BTH region in 2015 in which raw coals were replaced with the semi-coke briquette showed that amounts of pollutants emitted from residential coal combustion could decrease by 91.6% for primary PM2.5, 94.0% for OC, 99.6% for EC, 99.9% for PAHs, 94.2% for NO3−, 45.6% for HTEs, 70.9% for NOxand 22.3% for SO2. However, SO42−loadings evidently would increase if raw coals were replaced with either semi-coke briquette or anthracite coal-briquette. Geographic distributions of modeled reductions were developed to identify emission-reducing hot-spots and aid in the development of clean energy policies. Replacement of traditional raw coals with the semi-coke briquette apparently could lead to significant environmental improvements in BTH and other regions in China.
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DOI：
10.1016/j.scitotenv.2014.10.054
发表时间：
2015-02
期刊：
The Science of the total environment
影响因子：
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作者：
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影响因子：
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作者：
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DOI：
10.1016/b978-0-08-097760-7.00007-x
发表时间：
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期刊：
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影响因子：
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