SO2 and NOx Analysis from Low Pressure Flares in South Pars Gas Field in Iran

Abstract

Gas flares have always been one of the major sources of producing gases such as CO, SO2, NOx and CO2. Therefore, the appropriate management of the input gas of flares has always been very important. The dispersion of these gases into the environment has harmful effects on the environment and human health. Therefore, in this study the harmful effects of SO2 and CO2 emission by low pressure flares in the 1-10 phases of Assaluyeh on the workers’ and the locals’ health. In the end by considering the acquired data from the refineries in relation to the input substance of the flares, it was calculated that 666916 tons of NO2 gas and 1.7 tons of SO2 are dispersed into the environment annually. As observed the effects of NO2 gas are considerably higher than SO2 gas. The emission rate based on the Risk Poll model causes an overall damage of 958000 dollars to human health. According to the results the most damage is caused by death, chronic bronchitis and fatigue during the day. As there are many flares active in this region (some permanently and some temporarily) a solution has to be discovered to reduce the rate of flaring or its harmful effects in this region.