摘要
以吸附理论为基础,选取胜利油田典型的土壤对原油在天然土壤上吸附行为的过程进行了试验研究,选取温度、盐度、pH值等因素对原油在土壤上的吸附行为进行了系列影响试验.试验结果表明:在225 nm波长下,原油浓度与吸光度具有很好的线性相关性;Langmuir吸附模式较好地拟合了其吸附等温式,30℃时,吸附规律较好地符合Langmuir吸附等温式;盐度的存在可提高土壤对原油的吸附能力;pH对吸附性能有较大影响,且pH=7.0时影响最大.
The experiment studied the adsorption process of natural oil on the soil of Shengli Oilfield. The laboratory testing program was carried out to investigate the effects of temperatures, salt degrees and pH values on the sorption process of natural oil on the soil. The results indicated that, in the wavelength of 225 nm, the concentration of crude oil and absorbency have a good linear relationship; the Langmuir model fits the sample well. At 30℃, the soil samples have good adsorptive capacities. The adsorption isotherm matches the Langmuir adsorption isotherm better. The salinity of the soil can increase the absorption capacities of crude oil. pH has an effect on the adsorption properties, and when the pH=7.0 the effect is greater.
出处
《青岛理工大学学报》
CAS
2008年第5期94-98,共5页
Journal of Qingdao University of Technology
关键词
胜利油田
原油
吸附
吸附等温线
Shengli Oilfield
natural oil
adsorption
adsorption isotherm
