Choose Your State of Service

In order to serve you better, please select your Dominion Energy location services.

Choose Your State of Service

In order to serve you better, please select your Dominion Energy location services.

Select my State

alert
Privacy Policy & Cookies: We use cookies and similar technologies. By continuing to use this website, you consent to our Terms and Conditions and our Privacy Notice.
close

Sulfur Content

Much of the sulfur contained in the gas consists of compounds that naturally occur in the gas. Common sulfur compounds that may be found in the gas supply are Tetrahydrothiophene (THT), Tertiary Butyl Mercaptan (TBM), Dimethyl Sulfide (DMS), and Hydrogen Sulfide (H2S).

These compounds are harmless at low levels but can cause customer complaints due to excessive gas odor, or in the case of Hydrogen Sulfide, become dangerous at very high levels.

We continuously monitor the gas stream for specific sulfur compounds at several points on its system as part of its program to ensure that the gas is properly odorized and that sulfur levels are within established limits.

Environmental Comparisons

Comparison of typical fossil-fuel-emissions levels
(pounds per billion Btu of energy input)

Emission Component Natural Gas Oil Coal 
Carbon Dioxide 117,000
164,000
208,000
Carbon Monoxide 40 33  208 
Nitrogen Oxide  92  448 457
Sulfur Dioxide
1 1,122 2,591
Particulates
7 84 2,744
Mercury
0.000 0.007 0.016


Typical emissions levels for natural gas-fired generating plants

(pounds per megawatt-hour)

Plant Configuration
Carbon Dioxide
Carbon Monoxide
Nitrogen Oxides
Sulfur Oxides
Particulate Matter
Mercury 
Combined-cycle
 760 0.26 0.60 0.01 0.05 0.00000
Simple-cycle
1,140 0.39 0.90 0.01 0.07 0.00000


Typical emissions levels for coal and fuel-oil-fired generating plants

(pounds per megawatt-hour)

Plant Configuration Carbon Dioxide  Carbon Monoxide  Nitrogen Oxides Sulfur Oxides  Particulate Matte  Mercury  
Coal-fired/ steam
2,028 2.03  4.45 25.26 26.75 0.00016
Oil-fired/ steam
1,600 0.32 4.37 10.93 0.82 0.00007


Comparison of emissions for auto engines

(pounds per million Btu)

Fuel Type Carbon Dioxide Carbon Monoxide Nitrogen Oxides Total Hydrocarbons Particulate Matter
Natural Gas 119.6 0.409 0.082 0.193  
Gasoline 160.7 1.125 0.095 0.061  


Comparison of emissions for heavy-duty truck engines
(pounds per million Btu)

Fuel Type Carbon Dioxide Carbon Monoxide Nitrogen Oxides Total Hydrocarbons Particulate Matter
Natural Gas 125.6 0.004 0.844 0.893 0.001
Diesel 166.7 0.078 1.443 0.045 0.025

Related Links

caret
More Links