United States Environmental Protection Agency General

For example, if a natural gas-fired boiler was retrofitted to burn distillate oil, that would be considered a modification. • Demonstrate that the fuel sulfur content is less than or equal to of 0.5 percent by weight. Since, by definition, distillate oil cannot contain greater than 0.5% sulfur, any

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1.4 Natural Gas Combustion - US EPA

Emissions of SO2 from natural gas-fired boilers are low because pipeline quality natural gas typically has sulfur levels of 2,000 grains per million cubic feet. However, sulfur-containing odorants are added to natural gas for detecting leaks, leading to small amounts of SO2 emissions. Boilers combusting unprocessed natural gas may have higher SO2 emissions due to higher levels of sulfur in the natural gas.

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1.3 Fuel Oil Combustion - US EPA

Uncontrolled SOx emissions are almost entirely dependent on the sulfur content of the fuel and are not affected by boiler size, burner design, or grade of fuel being fired. On average, more than 95 percent of the fuel sulfur is converted to SO2, about 1 to 5 percent is further oxidized to sulfur trioxide

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United States Environmental Protection Agency General Air

Jul 28, 2020 · One concern involves the levels of sulfur contained in the fuel gas supply and its impact on corrosion in the low-temperature section of the waste-heat recovery unit (HRSG) and the downstream stack. This is caused by the formation and condensation of sulfur acid.

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Natural Gas Fired Boilers

Sulfur occurs naturally in natural gas and originates from the breakdown of organic material upon its burial and heating and is released along with hydrocarbons as a source rock matures. Sulfur compounds in raw gas typically need to be removed during processing, which is an energy intensive process. Thus, natural gas with high sulfur content,

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Overcoming Challenges of Sulfur Analysis in Natural Gas

1.4 Natural Gas Combustion - US EPA

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Increasing Natural Gas Boiler Efficiency by Capturing

The level of SOx emitted depends directly on the sulfur content of the fuel. The level of SOx emissions is not dependent on boiler size or burner design. Typically, about 95% of the sulfur in the fuel will be emitted as SO2, 1-5% as SO3, and 1-3% as sulfate particulate. Sulfate particulate is not considered part of the total SOx emissions.

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New Source Performance Standards Subpart Dc for Boilers

Natural Gas Fired Boilers - innovativecombustion.com

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03 Related natural gas boiler fuel sulfur information