CAJ | 학술논문

采用MINIVAP VPS测定仪对出口汽油饱和蒸汽压进行了测定,考察了汽油样品在储存时饱和蒸汽压的变化情况。结果表明：饱和蒸汽压随时间推移而变小,数值变化大小各不相同,最终差值不取决于初始饱和蒸汽压数值;在26 d考察时间内,饱和蒸汽压数值变化最大为2号样品,由52.8 kPa变化到38.2 kPa、变化差值达14.6 kPa;数值变化最小为6号样品,由54.0 kPa变化到51.5 kPa、变化差值仅为2.5 kPa。不同批次汽油储存时的饱和蒸汽压、蒸发性、稳定性及安全性变化是有很大差别的。
채용MINIVAP VPS측정의대출구기유포화증기압진행료측정,고찰료기유양품재저존시포화증기압적변화정황。결과표명：포화증기압수시간추이이변소,수치변화대소각불상동,최종차치불취결우초시포화증기압수치;재26 d고찰시간내,포화증기압수치변화최대위2호양품,유52.8 kPa변화도38.2 kPa、변화차치체14.6 kPa;수치변화최소위6호양품,유54.0 kPa변화도51.5 kPa、변화차치부위2.5 kPa。불동비차기유저존시적포화증기압、증발성、은정성급안전성변화시유흔대차별적。
Saturated vapor pressure of export gasoline was determined using MINIVAP VPS determinator.Variations of saturated vapor pressure of the gasoline samples in storage are investigated.The result showed that the saturated vapor pressure decreased over time while the numerical variations were different.The final differences did not depend on the initial saturated vapor pressure.During the 26 days of observation,the specimen with the largest variation of saturated vapor pressure was Sample 2,whose pressure varied form 52.8 kPa to 38.2 kPa,and the difference was 14.6 kPa;whereas the specimen with the smallest variation was Sample 6,whose varied from 54.0 kPa to 51.5 kPa,and the difference was only 2.5 kPa.There was a big difference in saturated vapor pressure,evaporability,stability and safety between different batches of petroleum in storage.