石油化工2025，Vol.54Issue(6)：771-778,8.DOI:10.3969/j.issn.1000-8144.2025.06.003
磷酸改性纳米Fe2O3在多孔介质中的运移
Migration of phosphoric acid-modified nano-Fe2O3 in porous media
摘要
Abstract
Phosphoric acid-modified nano-Fe2O3(PIONPs)catalyst was prepared by hydrothermal grafting of surface functional groups.The properties of nano-Fe2O3 before and after phosphoric acid-modification were investigated using SEM,FTIR,XRD,and Zeta potential analysis.The interaction energies of PIONPs were analyzed based on XDLVO theory.The influence of formation water chemistry conditions(ionic strengths and types)on the mobility of PIONPs was investigated through column experiments.The results show that PIONPs exhibit better mobility than nano-Fe2O3.High ionic strengths and high-valence cations can facilitate the adsorption of PIONPs onto quartz sand surfaces,thereby inhibiting their migration.关键词
纳米Fe2O3/运移/多孔介质/稠油Key words
nano-Fe2O3/migration/porous media/heavy oil分类
化学工程引用本文复制引用
李晶晶,杨福祥,唐晓东,卿大咏..磷酸改性纳米Fe2O3在多孔介质中的运移[J].石油化工,2025,54(6):771-778,8.基金项目
国家自然科学基金企业创新发展联合基金重点资助项目(U22B20145). （U22B20145）
