# Emission estimation calculators, booklet 1: chapter 3

## Anthracite Coal Combustion (stoker fired boilers)

The burning of anthracite coal in stoker fired boilers results in releases of Metals (Part 1 Substances), Polycyclic Aromatic Hydrocarbons (Part 2 Substances) and Criteria Air Contaminants (Part 4 substances).

### Suggested estimation methodology for Part 1, 2, 3 Releases: Emissions Factor

The general equation for emissions estimation is:

E = A x EF

where:

• E = emissions
• A = activity rate
• EF = emission factor

#### Input Data

A = Anthracite Coal Burned [tonnes per year]
B = Ash Content of Coal [percent]
C = Sulphur Content of Coal [percent]

#### Substance Releases

Parts 1, 2, 4 Substance Releases
Substance Name Chemical Abstracts Service Registry Number (CAS RN)Footnote1.1 Part Emission Factor (EF)Footnote2 EF Units
Arsenic 7440-38-2 1 9.50E-05 kilograms (kg)/tonne
Ammonia 7664-41-7 1 0.00028 kg/tonne
Biphenyl 92-52-4 1 1.25E-02 kg/tonne
Chromium 7440-47-3 1 1.40E-02 kg/tonne
Manganese 7439-96-5 1 1.80E-03 kg/tonne
Mercury 7439-97-6 1 6.50E-05 kg/tonne
Naphthalene 91-20-3 1 6.50E-02 kg/tonne
Nickel 7440-02-0 1 1.30E-02 kg/tonne
Selenium 7782-49-2 1 6.50E-04 kg/tonne
Phenanthrene 85-01-8 2 3.40E-03 kg/tonne
Carbon Monoxide (CO) 630-08-0 4 0.3 kg/tonne
Sulphur Dioxide (SO2)Footnote* 7446-09-5 4 C x 19.5 kg/tonne
Oxides of Nitrogen (NOx), expressed as nitrogen dioxide (NO2) 11104-93-1 4 4.5 kg/tonne
Volatile Organic Compounds (VOCs) Footnote*** 4 0.035 kg/tonne
Total Particulate Matter (TPM)Footnote* Footnote*** 4 B x 0.4 kg/tonne
Particulate Matter less than or equal to 10 micrometers (µm) (PM10)Footnote** Footnote*** 4 2.4 kg/tonne
Particulate Matter less than or equal to 2.5 µm (PM2.5)Footnote** Footnote*** 4 1.25 kg/tonne

### Note on Emissions Factors

The default emission factors are used in the table above, however if you have a site specific emission factor you would prefer to use you may enter it in the emission factor column. If you choose to insert your own emission factor ensure that the units have been converted accordingly.

The emission factors used in this spreadsheet are based on uncontrolled emissions. If you are using an emission control device you will have to adjust the emissions calculated by this spreadsheet according to the following formula:

Controlled Emissions = Uncontrolled emission x ((100 - control efficiency)/100)