Cradle to Gate
Identity ID
a2758b40-3dcf-403d-a4ca-48a34d60377c
Energy
Associated ID
fccd69ac-3660-465a-8544-bae1fbea32a0
Included activities starts
Included activities ends
Description
This dataset represents the average situation of coal-fired power generation in China. Its data are obtained by weighted aggregation of the production datasets of Beijing, Tianjin, Hebei, Shanxi, Inner Mongolia, Liaoning, Jilin, Heilongjiang, Shandong, Henan, Shaanxi, Gansu, Ningxia, Xinjiang, Anhui, Guizhou, Shanghai and other provinces (regions, municipalities). The average technology adopted by the power plants takes into account technical parameters such as unit capacity, boiler type and cooling method, as well as the average process combination of flue gas control technology, etc. For the production datasets of specific regions, the raw coal consumption per unit of coal-fired power generation is determined based on official statistical data, and the coal quality parameters consumed adopt the regional average consumed coal quality data. Information on the emission inventory data:
· For the emissions of major pollutants such as CO2, SO2, NOx and particulate matter, a material balance method related to coal quality parameters is adopted.
· The emissions of CH4, N2O, CO and NMVOC are estimated using the default emission factor values specified in IPCC 2006 for coal combustion in the energy sector.
· The emissions of halogens, organic pollutants, trace heavy metal elements and radioactive elements are taken from the literature.
· All emissions take into account the average removal efficiency of flue gas pollution control technologies in Chinese thermal power plants.
Activity Description
The system boundary covers the entire stage of operation and maintenance of coal-fired power plants, including coal combustion, fuel oil ignition and combustion stabilization, water treatment, flue gas denitrification, particulate matter removal, flue gas desulfurization, solid waste production and disposal, etc.
Process Description
The product is grid-connected power in kWh, with a voltage level of ≥35 kV.
Time period
2022
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
Coal-fired power generation is a large-scale method of electricity production that converts chemical energy into electrical energy by burning coal. The core processes include: raw coal is prepared and fed into a boiler for combustion, generating high-temperature, high-pressure steam that drives a steam turbine, which in turn rotates a generator to produce electricity; the exhaust steam is condensed into liquid water by circulating cooling water in a condenser and returned to the boiler for reuse; the flue gas generated from combustion is purified and discharged using technologies such as low-NOx combustion, selective catalytic reduction (SCR) for denitrification, electrostatic precipitation, and limestone-gypsum wet flue gas desulfurization (FGD).