Tang Ling, Xue Xiao-da, Bo Xin, Guo Jing, Wang Peng, Zhai Wen-Hui, Cui Wei-Geng, Wang Shou-Yang, Li Shi-Bei, Dong Guang-Xia
School of Economics and Management, Beihang University, Beijing 100191, China.
School of Economics and Management, Beijing University of Chemical Technology, Beijing 100029, China.
Huan Jing Ke Xue. 2020 Nov 8;41(11):4776-4785. doi: 10.13227/j.hjkx.202003171.
This study analyzed the concentrations of exhaust gas in the process (kiln head and kiln tail) of China's cement industry, based on data from continuous emission monitoring systems network in 2018. The cement emission inventory for China with high resolution (high resolution cement emission inventory for China, HCEC), using the bottom-up approach, was established. The results indicated that during 2018, the total emissions of PM, SO, and NO were 72893, 92568, and 878394 t, respectively. In terms of temporal evolution, the exhaust concentration of flue gas in the main process gradually decreased, with obvious emission reduction from the Blue Sky Protection Campaign. Regionally, the exhaust concentrations of flue gas of the kiln head and kiln tail in Beijing-Tianjin-Hebei and surrounding areas, and the Yangtze River Delta and Fenwei Plain, showed a considerable decline, with a high to average level in China. The flu concentrations of each city differed; the cement industry in Anhui Province generated the largest emission in the country, while Beijing and Tianjin showed the highest emission intensity per unit area.
本研究基于2018年连续排放监测系统网络的数据，分析了中国水泥行业生产过程（窑头和窑尾）中的废气浓度。采用自下而上的方法，建立了高分辨率的中国水泥排放清单（中国高分辨率水泥排放清单，HCEC）。结果表明，2018年期间，颗粒物、二氧化硫和氮氧化物的总排放量分别为72893吨、92568吨和878394吨。在时间演变方面，主要生产过程中的烟气排放浓度逐渐下降，蓝天保卫战带来了明显的减排效果。从区域来看，京津冀及周边地区、长江三角洲和汾渭平原的窑头和窑尾烟气排放浓度有显著下降，在中国处于高到平均水平。各城市的排放浓度有所不同；安徽省的水泥行业排放量在全国最大，而北京和天津的单位面积排放强度最高。
