Cradle to Gate
Identity ID
e77bc696-ee9c-4e45-8a1a-c53d087c1af7
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 starting from coal mining, covering all activities associated with raw coal production, but excluding coal washing processes, as well as direct or indirect greenhouse gas emissions from the production of equipment such as conveyors and mining vehicles, personnel transportation during coal production, and daily office operations. The dataset was compiled from multiple data sources based on national standards such as "Clean Production Standards for Coal Mining and Processing Industry" (HJ 446-2008), "Emission Standards of Pollutants for Coal Industry", and "Soil Environmental Quality Standards of the People's Republic of China", and is representative of the average production level in Guangxi.
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
Guangxi has limited proven coal reserves, making it one of the coal-deficient provinces. Coalfields with reserves exceeding 100 million tons include Heshan, Baise, Hongmao, Nanning, Dongluo, Nalong, Mingjiang, Luocheng, and others. Resources are unevenly distributed, mainly concentrated in western and central Guangxi. Coal types in Guangxi Zhuang Autonomous Region include anthracite, lean coal, meager coal, coking coal, fat coal, gas coal, long-flame coal, lignite, and stone coal. The raw coal quality features ash content ranging from 4.65% to 43.3%, volatile matter from 3.26% to 50.57%, total sulfur from 0.77% to 13.77%, and carbon content from 71.64% to 94%. 94%, the as-received net calorific value Qnet,ar ranges from 4500 to 8914 kcal/kg.
Time period
2022
2026
Geography
China,Guangxi Zhuang Autonomous Region
Geography comment
Forming Guangxi'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.