The effects of Concentration and Salinity on Polymer Adsorption Isotherm at Sandstone Rock Surface

9th Curtin University of Technology Science and Engineering International Conference 2014

自然科学;工业技术

Ali, M.^1 ; Mahmud, H. Ben^1

Petroleum Engineering Department, Curtin University Miri, Malaysia^1

关键词: Adsorption coefficients;    Hydrolyzed polyacrylamides;    Langmuir adsorption;    Langmuir's isotherm;    Linear relationships;    Polymer concentrations;    Static adsorption;    Static experiments;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/78/1/012038/pdf
DOI  :  10.1088/1757-899X/78/1/012038

来源: IOP

【 摘 要 】

Adsorption of hydrolyzed polyacrylamide (HPAM) polymers on sandstone rock surface was studied by static adsorption experiments. Total of 10 Runs of static experiments were conducted in test tubes by mixing the desired solution with crushed rock sample, at temperature of 25 °C, and salinity range from 0-4 wt%. The results are in conformity with Langmuir's isotherm. Ten different isotherms were generated at each Run. The initial polymer concentration was varied from 0.3-2.1 g/l. The effects of salinity have been studied by observation on Langmuir adsorption coefficients (Y and K). The results show that the adsorption coefficient (Y) was found to have linear relationship with salinity. The adsorption coefficient (K) was found to be related to salinity by a quadratic relationship.