Anthropogenic and biogenic sources of Ethylene and the potential for human exposure: A literature review

Morgott, David A.

doi:10.1016/j.cbi.2015.08.012

Cited by 28 publications

(21 citation statements)

References 141 publications

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“…Because of the big capacity and high furnace temperature, the coal-fired boiler is a perfect fuel consumer and the waste gas can be easily burnt. After being introduced to boilers, CH 4 and other hydrocarbon gases can be converted to CO 2 , which will alleviate the greenhouse effect. (3).…”

Section: The Proposed System For Utilization Of Combustible Waste Gmentioning

confidence: 99%

“…The combustible waste gas, which is generally vented or torched, can be conceptually divided into 5 types: (1) blast furnace gas and coke oven gas that vented in the metallurgical industry; (2) hydrocarbon gases that torched in the petrochemical industry; (3) associated natural gas that vented during the initial stage of oil/gas field exploitation; (4) coalbed methane that released during coal mining; and (5) methane that produced from the refuse landfill or the food industry . Venting or torching the combustible waste gas will cause huge energy wastage.…”

Section: Introductionmentioning

confidence: 99%

“…The main component of the combustible waste gas is CH 4 , which has a 21 times worse greenhouse effect than CO 2 does. Most of hydrocarbon gases are poisonous and effluvial, some of which may be the cause of human cancer . Hydrocarbon gases would also be implicated in the formation of photochemical smog and haze .…”

Section: Introductionmentioning

confidence: 99%

“…Most of hydrocarbon gases are poisonous and effluvial, some of which may be the cause of human cancer. 4 Hydrocarbon gases would also be implicated in the formation of photochemical smog and haze. 5,15,16 Thus, venting the combustible waste gas will also cause serious environmental problems.…”

Section: Introductionmentioning

confidence: 99%

“…Cold air and hot air temperatures for primary and secondary air stay the same. Proportions of primary and secondary air in the total combustion air remain unchanged (4)…”

mentioning

confidence: 99%

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Utilization of combustible waste gas as a supplementary fuel in coal-fired boilers

Deng

Wang²,

et al. 2017

Int J Energy Res

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Summary A system is proposed to use the combustible waste gas as a supplementary fuel in coal‐fired boilers. The combustion air can be partially or fully substituted by ventilation air methane or diluted combustible waste gases. The recommended volume fraction of combustible waste gas in combustion air is no more than 1.0%. The effect of waste gas introduction on thermodynamic parameters of boiler is evaluated through thermal calculation based on material balance, heat balance, and heat transfer principles. A case study is conducted by referring to a 600 MW supercritical pressure boiler. The results show that no retrofit of boiler is required. The operation of boiler is scarcely influenced, and the original forced and induced draft fans can meet the requirement. With increasing volume fraction of combustible waste gas, the flue gas temperature at the furnace exit decreases monotonically, resulting in an increment of heat absorption in furnace and a decrement of heat transferred in convective heating surfaces. When 1.0% volume fraction of hydrocarbon gas is introduced, the thermal efficiency of boiler is increased by 0.5%, and the coal consumption rate is reduced by 25.4%. The cost analysis of the proposed system is conducted, and break‐even curves are given as references for the utilization of waste gas as a supplementary fuel. The economic velocity of the combustion air is suggested to be 18.2 m s−1.

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Section: The Proposed System For Utilization Of Combustible Waste Gmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Cold air and hot air temperatures for primary and secondary air stay the same. Proportions of primary and secondary air in the total combustion air remain unchanged (4)…”

mentioning

confidence: 99%

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