CAJ | 학술논문

燃料燃烧过程是大气污染物的重要来源之一,对人体健康、空气质量和气候变化产生非常重要的影响.以62台燃油锅炉(≤10.5 MW)的燃料特性分析数据和SO_2排放实测数据为基础,通过统计分析方法,研究了燃油燃烧过程中燃油硫含量S和过量空气系数α对硫的转化率、SO_2排放因子和排放浓度的影响,获得了基于燃料消耗量、燃料发热量的SO_2排放因子EF_C、EF_H以及SO_2标态折算浓度C'_(SO_2).与硫含量S间的关联式.结果表明,在过量空气系数α>1的燃油燃烧过程中,EF_C、EF_H、C'_(SO_2)与燃油硫含量S呈现出显著的线性正相关性,而与过最空气系数α无关,其关系式分别为:EF_C=18.86602×S,EF_H=443.78751×S,C'_(SO_2),=1509.28337×S;硫转化率η和基于燃料硫含量的SO_2排放因子EF_S则与燃油硫含量S和过量空气系数α无关,其平均值分别为96.3%和1.93 k/kg.
연료연소과정시대기오염물적중요래원지일,대인체건강、공기질량화기후변화산생비상중요적영향.이62태연유과로(≤10.5 MW)적연료특성분석수거화SO_2배방실측수거위기출,통과통계분석방법,연구료연유연소과정중연유류함량S화과량공기계수α대류적전화솔、SO_2배방인자화배방농도적영향,획득료기우연료소모량、연료발열량적SO_2배방인자EF_C、EF_H이급SO_2표태절산농도C'_(SO_2).여류함량S간적관련식.결과표명,재과량공기계수α>1적연유연소과정중,EF_C、EF_H、C'_(SO_2)여연유류함량S정현출현저적선성정상관성,이여과최공기계수α무관,기관계식분별위:EF_C=18.86602×S,EF_H=443.78751×S,C'_(SO_2),=1509.28337×S;류전화솔η화기우연료류함량적SO_2배방인자EF_S칙여연유류함량S화과량공기계수α무관,기평균치분별위96.3%화1.93 k/kg.
The combustion of fuels in boilers is one of important sources of air pollutants. It has very impor-tant impacts on human health, air quality and climate changes. The impacts of sulphur contents of fuel oil and excess air coefficients on sulphur conversion rates, emission factors and emission concentrations of SO_2 were stud-ied by means of statistical analysis method and based on the fuel oil analysis data and the actual test data of SO_2 emissions from 62 oil-fired boilers in China,actual capacity of boilers≤ 10. 5 MW. Furthermore, the mathemati-cal relationships of SO_2 emission factors based on fuel consumption (EF_C) and fuel heating value(EF_H) ,and e-mission concentrations of SO_2( C'_(SO_2)) converted into standard state and excess air coefficient is 1. 2, with sulphur contents were obtained. The results indicate that in fuel oil combustion, excess air coefficients > 1, EF_C , EF_H , and C'_(SO_2) present a highly significant positive linear correlation with sulphur contents, and are independent of ex-cess air coefficients. These correlations are EF_C = 18.86602 × S, EF_H = 443.78751 × S, and C'_(SO_2) = 1 509. 28337 ×S, respectively. Sulphur conversion rates and emission factors based on sulphur content of fuel oil are independent of sulphur contents and excess air coefficients, and their average values are 96.3% and 1.93kg/kg, respectively.