Cradle to Gate
Identity ID
cfbf2414-f7ab-443f-b30c-225ae96c7536
Materials
Associated ID
f8e51a0b-4d95-41fe-be5e-7244b8c5e57c
Included activities starts
Included activities ends
Description
This dataset represents a life cycle inventory (cradle-to-gate) of raw coal production, covering all activities associated with raw coal production, but excluding coal washing processes, equipment manufacturing such as conveyors and mining vehicles, and direct or indirect greenhouse gas emissions from personnel commuting and daily office operations during coal production. The dataset, formed by consolidating data from multiple sources in accordance with national standards such as "Cleaner Production Standard for Coal Mining and Preparation Industry" (HJ 446-2008), "Emission Standards of Pollutants for Coal Industry", and "Soil Environmental Quality Standards of the People's Republic of China", represents the average production level in Liaoning.
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
Liaoning Province has a complete range of coal types with high-quality coal, including lignite, long-flame coal, gas coal, fat coal, coking coal, lean coal, poor coal, anthracite, and weakly caking coal, among which long-flame coal is the dominant type, accounting for 41% of the total. 6%, followed by gas coal and lignite. Long-flame coal is mainly distributed in the Fuxin coalfield, Tiefahuo coalfield, Kangping coalfield, Nanpiao coalfield, southwestern part of Beipiao coalfield, and Badrao coalfield. Fatty coal, coking coal, and lean coal are mainly distributed in the northern part of Hongyang coalfield, Benxi coalfield, northeastern part of Beipiao coalfield, Fushun Majiazi mining area, and Fengcheng Saima mining area. Poor coal and gas coal are mainly distributed in Fushun coalfield, southwestern part of Tiefahuo coalfield, and southwestern part of Beipiao coalfield. Anthracite is mainly distributed in the southern part of Hongyang coalfield, eastern part of Benxi coalfield, and Yantai coalfield. Weakly caking coal is mainly distributed in the Nanpiao coalfield. Lignite is mainly distributed in the Shenbei coalfield. Ash content 4. 8–38%, volatile matter 20–48%, carbon content 77.82–83.63%, total sulfur 0.27–1.99%, Qnet,ar gross calorific value on received basis 3000–7843 kcal/kg.
Time period
2022
2026
Geography
China,Liaoning
Geography comment
Formed Liaoning average data through data merging 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.