摘要
收集储备大豆原油在储存过程中酸值和过氧化值的数据,分析其在储存过程中的变化规律。结果表明:大豆原油的酸值和过氧化值变化规律相同,酸值随着储存时间的延长呈缓慢线性增长,年变化值在0.2～0.4 mg/g,过氧化值随着储存时间延长呈平稳慢慢上升趋势,其变化值受环境温度影响较大,在外部温度和氧气突然增加时过氧化值迅速上升,当达到一定值后分解下降。
The acid value and peroxide value of the crude soybean oil in oil tank were determined and the change law of the crude oil during storage was analyzed. The results showed that the change law of the acid value and peroxide value of crude soybean oil was the same, the acid value increased with the increase of the storage time and 0. 2 - 0. 4 mg/g was increased every year, but the peroxide value slowly increased as the storage time increased, and changed more by environment temperature change. The peroxide value increased rapidly when the temperature and oxygen concentration increased suddenly, but when the peroxide value reached a certain degree, it would decreased.
出处
《中国油脂》
CAS
CSCD
北大核心
2012年第6期37-39,共3页
China Oils and Fats
关键词
大豆油
酸值
过氧化值
受热分解
soybean oil
acid value
peroxide value
thermal decomposition
