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Geological Availability and the Emission Inventory of Sulfur and SO2 from the Typical Coals of China

Category: Air Pollution and Health Effects

Accepted Manuscripts
DOI: 10.4209/aaqr.2018.08.0281
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Rahib Hussain1,2, Luo Kunli 1

  • 1 Institute of Geographic Sciences and Natural Resource Research, Beijing 100101, China
  • 2 University of Chinese Academy of Sciences, Beijing 10080, China

Highlights

The study emphasized the sulfur contents in different typical coals of China.
Historic and projected emission inventory of sulfur dioxide from China.
Spatial distribution of sulfur and SO2 by China to the atmosphere.
Coal consumption and their association with sulfur, SO2 and coal waste debris.


Abstract

The study aimed to find out the natural availability of sulfur and SO2 and their emission rate from the typical coal of the Jurassic, Permo-Carboniferous and the Cambrian strata of Shaanxi, China. A total of 93 samples (39 Binxian Jurassic, 37 Permo-Carboniferous, and 17 Langao Cambrian) were collected and analyzed through the Eschka method (GB/T 214-1996). Results show that the average sulfur content in the Binxian coal gangue was 2.40%, raw coal 2.85% and the coal slime was 0.92%. The average sulfur concentration in the Hancheng Permo-Carboniferous raw coal was 2.41%, coal gangue 1.48% and coal slime 1.5%, while the sulfur contents in Langao Cambrian stone-like coal was 0.84 and the Cambrian black shale rock was 2.44%. The annual sulfur emission rate (10 K tons) of Binxian urban was 0.15 and rural 0.93 with the possible SO2 emission of 1.4%. The sulfur emission (10 K tons) in Hancheng urban was 0.18 and rural 1.19 with the SO2 emission of 1.8%, while in Langao urban and rural were 0.04 and 0.28 with 0.43% of SO2 emission. The coal waste consumption from 1991-2015 was increased by 23% in urban and 10% in rural areas of China, which ultimately reduce the coal wastes debris. The raw coal consumption from 1991 to 2015 was reduced from 96% to 73% in urban and 97% to 87% in rural areas of China, respectively. The historic and projected SO2 emission was reduced from 2006 and onward by using effective desulfurizing technology. The study concluded that China is continuously reducing the SO2 emission by adopting the green economy, which might be sustained the clean air quality and other environmental factors very soon. The study recommends installing the desulfurizing equipment in power plants to reduce the final SO2 emission.

Keywords

Cambrian Coal Jurassic Shaanxi Sulfur SO2


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