What is the emission factor for natural gas?
What is the emission factor for natural gas?
Carbon Dioxide Emissions Coefficients
| Pounds CO2 | Kilograms CO2 | |
|---|---|---|
| Carbon Dioxide (CO2) Factors: | Per Unit of Volume or Mass | Per Million Btu |
| Natural Gas | 120.96 thousand cubic feet | 52.91 |
| Finished Motor Gasolinea | 17.87 gallon | 67.38 |
| Motor Gasoline | 19.37 gallon | 70.66 |
Where can I find emission factors?
In our experience, the best place to find emission factors is the Environmental Protection Agency’s AP-42 database, which contains emission factors from various industries. The AP-42 database is helpful because it also gives you the background of the industry that you’re dealing with.
How do you calculate CO2 emissions for natural gas?
Therms and Mcf of natural gas Carbon dioxide emissions per therm are determined by converting million British thermal units (mmbtu) to therms, then multiplying the carbon coefficient times the fraction oxidized times the ratio of the molecular weight of carbon dioxide to carbon (44/12).
How much NOx is produced from burning natural gas?
Some of the highest-polluting natural gas power plants emit over 100 tons of NOx per year, which is roughly equivalent to the NOx emissions from traveling 11 million miles (assuming an emissions rate of 8.18 grams of NOx per mile) in a diesel school bus, one of the most-polluting types of vehicles.
Does natural gas produce NOx?
Burning natural gas does produce nitrogen oxides (NOx), which are precursors to smog, but at lower levels than gasoline and diesel used for motor vehicles.
Does natural gas release more NOx than coal?
In addition, natural gas power plants with combined cycle technology emit less NOx and far less SO2 per unit of energy produced than coal power plants.
What are the different types of emissions?
There are many sources of emissions. These have been grouped into four categories: point, mobile, biogenic, and area.
How do you quantify emissions?
Emissions may be quantified through direct measurement, or calculated based on fuel use data. This section provides a calculation method using fuel use data. The Advanced Methods Module provides methods for quantifying emissions with direct measurement systems and using measured fuel characteristics.
How do you measure NOx emissions?
They specify that the only type of instrument that must be used for measuring NOX is a (heated) chemiluminescent detector (CLD) in association with an NOX – NO converter. 2NO2 + C → 2 NO + CO2. Interestingly, this is exactly the same reaction that is promoted by an oxy-cat on a diesel engined vehicle.
How do you reduce NOx emissions?
One way of controlling NOx emissions is to use low-nitrogen fuels. Another is to modify combustion conditions to generate less NOx. Flue gas treatment techniques, such as selective cata- lytic reduction (SCR) processes, can remove NOx.
