Natural gas is an extremely important source of energy for reducing pollution and maintaining a clean and healthy environment. In addition to being a domestically abundant and secure source of energy, the use of natural gas also offers a number of environmental benefits over other sources of energy, particularly other fossil fuels.
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A 350 MMBtu/hr natural gas-fired boiler operating at 85% capacity requires approximately 17 m 3 ( 600 ft 3). For the same sized coal-fired boiler, the required catalyst is on the order of 42 m3 (1,500 ft3). (NESCAUM 2000). SCR is a proprietary technology and
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There is little variation between the design of oil-fired units and the design of coal-fired units; almost all are either tangential-fired or wall-fired. Fuel oils are broadly classified into two major types: distillate and residual. Distillate oils (fuel oil grade Nos. 1 and 2
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No. 4 fuel oil 145,000 Btu/gal $2.57 $17.82 No. 6 fuel oil 150,000 Btu/gal $2.27 $15.14 Natural gas 1,028 Btu/scf NA $10.73 Interruptible natural gas 1,028 Btu/scf NA $8.26 No price projections exist for interruptible natural gas rates. Interruptible natural
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1.4.3 Emissions3-4 The emissions from natural gas-fired boilers and furnaces include nitrogen oxides (NOx), carbon monoxide (CO), and carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), volatile organic compounds (VOCs), trace amounts of sulfur
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1.4.3 Emissions3-4 The emissions from natural gas-fired boilers and furnaces include nitrogen oxides (NOx), carbon monoxide (CO), and carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), volatile organic compounds (VOCs), trace amounts of sulfur
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1.3.3 Emissions5 Emissions from fuel oil combustion depend on the grade and composition of the fuel, the type and size of the boiler, the firing and loading practices used, and the level of equipment maintenance. Because the combustion characteristics of
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A 350 MMBtu/hr natural gas-fired boiler operating at 85% capacity requires approximately 17 m 3 ( 600 ft 3). For the same sized coal-fired boiler, the required catalyst is on the order of 42 m3 (1,500 ft3). (NESCAUM 2000). SCR is a proprietary technology and
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Two postcombustion technologies that may be applied to natural gas-fired boilers to reduce NOx emissions are selective noncatalytic reduction (SNCR) and selective catalytic reduction (SCR). The SNCR system injects ammonia (NH3) or urea into combustion flue gases (in a specific temperature zone) to reduce NOx emission. The Alternative Control Techniques (ACT) document for NOx emissions from utility boilers, maximum SNCR performance was estimated to range from 25 to 40 percent for natural gas-fired boilers.12 Performance data available from several natural gas fired utility boilers with SNCR show a 24 percent reduction in NOx for applications on wall-fired boilers and a 13 percent reduction in NOx for applications on tangential-fired boilers.11 In many situations, a boiler may have an SNCR system installed to trim NOx emissions to meet permitted levels. In these cases, the SNCR …
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No. 4 fuel oil 145,000 Btu/gal $2.57 $17.82 No. 6 fuel oil 150,000 Btu/gal $2.27 $15.14 Natural gas 1,028 Btu/scf NA $10.73 Interruptible natural gas 1,028 Btu/scf NA $8.26 No price projections exist for interruptible natural gas rates. Interruptible natural
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1.3.3 Emissions5 Emissions from fuel oil combustion depend on the grade and composition of the fuel, the type and size of the boiler, the firing and loading practices used, and the level of equipment maintenance. Because the combustion characteristics of
Read More1.3.3 Emissions5 Emissions from fuel oil combustion depend on the grade and composition of the fuel, the type and size of the boiler, the firing and loading practices used, and the level of equipment maintenance. Because the combustion characteristics of
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