Emissions from an oil‐fired furnace burning MgO containing fuel oils

Lin, Cherng‐Yuan; Sheu, Huan‐Ruei

doi:10.1080/10934529709376616

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…Calcium oxide is susceptible to reacting with the impurities of the fuel, such as vanadium oxides [13] and other metallic oxides. [11] It also facilitates the oxidization reaction of the inflammable components such as CO and H 2 . Under the condition of varying inlet air temperature and/or humidity, the variation of the burning gas temperature, for burning marine diesel fuel with an added 100 ppm CaO, was smaller than that without any calcium oxide additive.…”

Section: Resultsmentioning

confidence: 99%

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Influences of Calcium Oxide Content in Marine Fuel Oil on Emission Characteristics of Marine Furnaces Under Varying Humidity and Temperature of the Inlet Air

Lin

Chen

2004

Journal of Environmental Science and Health, Part A

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A marine furnace made of stainless steel. combined with an automatic small-size oil-fired burner, was used to experimentally investigate the influences of calcium oxide content in fuel oil on the combustion and emission characteristics under varying temperatures and humidity of the inlet air. Marine fuel oil generally contains various extents of metallic oxides such as CaO, Fe2O3, V2O5, etc which might affect its burning properties. In this study, an air-conditioner was used to adjust the humidity and temperatures of the inlet air to preset values prior to entering the burner. The adjusted inlet air atomized the marine diesel oil A containing a calcium oxide compound, to form a heterogeneous reactant mixture. The reactant mixture was thereafter ignited by a high-voltage electrode in the burner and burned within the marine furnace. The probes of a gas analyzer, H2S analyzer and a K-type thermocouple were inserted into the radial positions of the furnace through the eight rectangular slots which were cut in the upper side of the furnace. The experimental results showed that an increase of either humidity or temperature of the inlet air caused the promotion of the reaction rate of the fuel. The existence of calcium oxide compound in the diesel fuel also facilitated the oxidation reaction in the combustion chamber. The addition of CaO in the diesel fuel under the conditions of higher temperature or higher relative humidity of the inlet air produced the following: higher concentrations of CO2, SO2, and H2S emissions, an increased burning efficiency, a lowered O2 level, production of excess air and NOx emissions as well as a lower thermal loss and a lower burning gas temperature, as compared with the conditions of a lower temperature or a lower humidity of the inlet air. In addition, the burning of diesel fuel with added CaO compound caused a large variation in the burning efficiency, thermal loss, plus CO2, O2, and excess air emissions between the conditions of higher temperature/higher humidity and lower temperature/lower humidity inlet air compared with no CaO addition in the fuel. Moreover, the burning efficiency and the concentrations of excess air and O2 emissions increased, while the thermal loss, burning gas temperature and H2S, SO2, NOx, and CO2 emissions decreased with the increase of the axial distance from the measured location to the burner nozzle.

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Section: Resultsmentioning

confidence: 99%

“…Calcium oxide compound can facilitate the oxidization reaction between the inflammable components CO and H 2 . [11] This is because calcium oxide belongs to an oxide of the alkaline-earth group, with a high melting point. It can easily react with the impurities in fuels, such as the vanadium chemical compound and the sulfide oxides.…”

Section: Introductionmentioning

confidence: 99%

Influences of Calcium Oxide Content in Marine Fuel Oil on Emission Characteristics of Marine Furnaces Under Varying Humidity and Temperature of the Inlet Air

Lin

Chen

2004

Journal of Environmental Science and Health, Part A

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Emission of Burning Emulsified Diesel Oil with Sodium Sulfate in Salty Atmospheric Air

Lin

Pan

2003

Journal of Environmental Science and Health, Part A

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The effects of sodium sulfate in fuel oil and salty atmospheric air on the emission characteristics of furnaces or boilers burned with emulsified diesel oils are considered in this study. An industrial cylindrical furnace made of stainless steel associated with an automatic oil-fired burner was used for the emission measurements. Both neat diesel oil and emulsified diesel oil with distilled water were used as the tested oils. A homogenizing and emulsifying machine was employed to stir the diesel oil and sodium sulfate powder into a homogeneous oil mixture, and to prepare emulsions of micro-droplets of water dispersed in diesel oil. The experimental results showed that the existence of sodium chloride in atmospheric air enhanced SO2 formation. The use of emulsified diesel oil with 300-ppm sodium sulfate as fuel reduced the burning gas temperature and NOx emission while increased O2 emission. Moreover, the presence of sodium chloride in atmospheric air hindered the completeness of the combustion process and thus resulted in lower burning efficiency and larger excess oxygen emission.

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Emissions from an oil‐fired furnace burning MgO containing fuel oils

Cited by 2 publications

References 8 publications

Influences of Calcium Oxide Content in Marine Fuel Oil on Emission Characteristics of Marine Furnaces Under Varying Humidity and Temperature of the Inlet Air

Influences of Calcium Oxide Content in Marine Fuel Oil on Emission Characteristics of Marine Furnaces Under Varying Humidity and Temperature of the Inlet Air

Emission of Burning Emulsified Diesel Oil with Sodium Sulfate in Salty Atmospheric Air

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