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Impact of H2s Content and Excess Air on Pollutant Emission in Sour Gas Flares
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نویسنده
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Zoeir Ahmed ,Tabatabaei Nejad Alireza ,Khodapanah Elnaz
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منبع
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Iranian Journal Of Oil And Gas Science And Technology - 2019 - دوره : 8 - شماره : 1 - صفحه:1 -10
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چکیده
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In sour gas flares, h2s content like any other components in inlet gas influences adiabatic flame temperature, which, in turn, impacts on the pollutant emission. wherever flame temperature increases, the endothermic reaction between o2 and n2 is accelerated, which means higher nox emission to the atmosphere. in this work, we developed an in-house matlab code to provide an environment for combustion calculations. then, this written code was used to perform sensitivity analyses on h2s content, air temperature, and excess air ratio in sour gas flares. we used environmental protection agency (epa) reports to assign weighting indexes to each air contaminant according to its harmfulness to environment; thereafter, sour gas flaring conditions were optimized for two real field case studies, namely ahwaz (amak) and south pars, to reach the minimum integrated pollutant concentrations. the results show that each 2% increase in the h2s content of the entrance feed may produce 0.3% additional sox in the exhaust. the results also confirm that decreases of 20 °f and 50 °f in the oxidant temperature cause nox emission to reduce by 0.5% to 1% respectively. finally, to verify and validate our results acquired from the written matlab code, frnc 2012 industrial software was used to duplicate the oxidation results for the two sour flare case studies.
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کلیدواژه
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Sour Gas Flares ,Epa Environmental Reports ,Pollutant Emission ,Frnc Software
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آدرس
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Sahand University Of Technology, Faculty Of Petroleum And Natural Gas Engineering, Iran, Sahand University Of Technology, Faculty Of Petroleum And Natural Gas Engineering, Iran, Sahand University Of Technology, Faculty Of Petroleum And Natural Gas Engineering, Iran
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پست الکترونیکی
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khodapanah@sut.ac.ir
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Authors
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