Cradle to Gate
Identity ID
a8dd60f4-ee26-4075-af19-de54ac44de06
Materials
Associated ID
f8e51a0b-4d95-41fe-be5e-7244b8c5e57c
Included activities starts
Included activities ends
Description
This dataset represents a cradle-to-gate life cycle inventory for raw coal production, covering all activities associated with raw coal production, but excluding coal washing and preparation processes, as well as the production of equipment such as conveyors and mining vehicles, and direct or indirect greenhouse gas emissions from personnel travel and daily office operations during coal production. The dataset was compiled from multiple data sources based on national standards such as "Clean Production Standards for Coal Mining and Preparation Industry" (HJ 446-2008), "Emission Standards of Pollutants for Coal Industry", and "Soil Environmental Quality Standards", and is representative of the average production level in Guizhou.
Activity Description
This dataset describes the extraction of raw coal. Chinese coal mining processes can be divided into two main categories: open-pit mining and underground mining, with the specific choice depending on geological conditions, thickness, and depth of coal seams. Open-pit mining includes drilling, blasting, loading, crushing, transportation, waste dumping, pollution treatment and disposal, and ecological restoration. Underground mining includes tunneling, coal extraction, mechanical equipment, underground and in-plant transportation, ventilation, pollution treatment and disposal, and ecological restoration and management.
Process Description
Guizhou Province is located at the eastern end of the Yunnan-Guizhou Plateau and occupies an important geographical position in southwestern China, with rich underground reserves of various mineral resources. Coal resources in the province are widely distributed, with large reserves, a complete range of types, and deep deposits, covering an area of approximately 70,000 km². Major coalfields in Guizhou Province include: Liuzhi Coalfield, Panxian Coalfield, Shuicheng Coalfield, Guiyang Coalfield, Zhijin Coalfield, Zunyi Coalfield, Bijie Coalfield, Tongzi Coalfield, Daozhen Coalfield, Fenggang Coalfield, Sinan Coalfield, Xingren Coalfield, Ziyun Coalfield, Huishui Coalfield, Guiding Coalfield, Duyun Coalfield, Libo Coalfield, Kaili Coalfield, Tianzhu Coalfield, and Weining Coalfield. The major coalfields primarily mine six coal types: gas coal, fat coal, coking coal, lean coal, meager coal, and anthracite. The raw coal quality parameters are as follows: ash content 1.9–58.9%, volatile matter 2.62–48%, total sulfur 0.05–13.1%, carbon content 84.16–91.01%, and net calorific value on an as-received basis (Qnet,ar) ranging from 5298 to 8659 kcal/kg.
Time period
2022
2026
Geography
China,Guizhou
Geography comment
Forming Guizhou's average data through merging data from multiple sources.
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
Coal mining methods can be divided into two main categories: open-pit mining and underground mining, with the specific choice depending on geological conditions, thickness, and depth of the coal seam.