underground coal mining ; coal mining

Categories:
Categories:
Unit processes/Energy carriers and technologies/Hard coal based fuels
Location:
CN - China
Reference year: 2005 -
Description

With the increase of mining depth, the gas content of coal seam increases. Users of this data set should consider it in the context of environmental impact assessments regarding methane emissions from coal mining activities. When using the data, they should adopt the IPCC's 'Tier 2' approach with regional average methane coefficients for calculation, as applied in the creation of the dataset. Due attention should be given to technological changes since 2000 which may have altered the efficiency of methane capture and utilization in coal mines. If used for comparative studies or temporal analyses, adjustments may be required to account for technological and methodological advancements over time.

Technology

The amount of methane discharged into the atmosphere from coal mines in China in 1994 and 2000 was investigated and studied. Through the collation and analysis of a large number of mine gas grade identification data of state-owned key, state-owned local and township coal mines, the amount of methane drainage and utilization in mines was investigated, and some laboratory measurements were supplemented. On this basis, in accordance with the IPCC Guidelines for the revision of the second.

Process type
Unit
LCI modeling approach
Unknown
Multifunctional modeling
NONE
Format
ILCD
Aggregation type
HORIZONTAL
Data provider
TianGong
Review status
Internal
Cost
Free
Contact
Tiangong LCI Data Working Group