Cradle to Gate
Identity ID
e4fe4c22-96b4-4db8-b0c2-fa716ccab5db
Energy
Associated ID
32e176a0-afc1-491d-bc61-34c323a82753
Included activities starts
Included activities ends
Description
This dataset represents the average situation of natural gas district boiler heat supply in China. The core production process is the combustion of natural gas in the boiler, directly converting chemical energy into thermal energy, producing steam or high-temperature hot water meeting the parameter requirements for heat supply. The natural gas consumption per unit of heat supplied for natural gas combined heat and power is determined based on official statistical data and heat source proportions. Information on the emission inventory data:
· The emissions of CO2, particulate matter and waste gas are mainly estimated based on the material balance and pollutant generation coefficients related to the gas quality parameters, and NOx emissions are assumed to comply with the standard limit values for pollutant emissions from thermal power plants.
· The emissions of CH4 and N2O are estimated using the default emission factor values recommended by IPCC documents for natural gas combustion in the energy sector.
· Particulate matter emissions with a particle size smaller than 2.5 μm are mainly considered.
· 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 a natural gas boiler room, including gas combustion, water treatment, flue gas denitrification, particulate matter removal, and other processes. This process is a single heat generation process with no co-product allocation issue.
Process Description
The product is heat in MJ, which is the sum of steam and hot water in energy terms. As an important energy product, heat is widely used in industrial production, building heating, domestic hot water supply and other fields in urban heating systems. Its essence is the form of thermal energy, which is transported and distributed through steam or hot water as a medium, and is ultimately measured and traded in terms of energy value.
Time period
2022
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
Natural gas district boiler heating refers to a thermal preparation method that directly burns natural gas and produces only heat. The core process includes: natural gas is transported to the boiler combustion chamber through pressure regulation for combustion, which directly converts chemical energy into thermal energy, converts the water in the boiler into steam or high-temperature hot water, and finally produces heat measured in energy units. The flue gas produced by combustion is purified using selective catalytic reduction (SCR) denitrification technology before being emitted.