中文摘要：

利用静态实验,研究了在正戊烷溶剂中,大港沥青质对卟啉钒模型化合物的吸附动力学,并对吸附机理进行了探讨.通过对吸附卟啉钒化合物前后的大港沥青质进行FT-ICR MS和元素（C/H/N/O）分析,发现大港沥青质上吸附了一定量的卟啉钒化合物.沥青质对卟啉钒的吸附过程受到沥青质的加入量（0.0100和0.0200 g）、戊烷溶液中初始卟啉钒的浓度（10和15 μg/mL）以及吸附温度（15、20和25℃）等因素的影响.分别采用拟一级、拟二级、Elovich和粒子内扩散等方程对实验数据进行了拟合,结果发现沥青质对卟啉钒的吸附符合拟二级动力学方程.

英文摘要：

The adsorption kinetics of vanadyl etioporphyrins on Dagang （DG） asphaltene in n-pentane solventwas investigated. The FT-ICR MS and C / H / N / O element analysis results indicated that a certain amount ofvanadyl porphyrins can be adsorbed by the DG asphaltene, proving the interactions present between vanadiumporphyrins and DG asphaltene. The adsorption process is influenced by the dosage of asphaltene （0. 010 0 and 0. 020 0 g）, the concentration of vanadyl porphyrins in n-pentane （10 and 15 μg / mL）, and the adsorptiontemperature （15、20 and 25 ℃）. The overall adsorption rates are fitted by the pseudo-first order, pseudo-secondorder, Elovich, and diffusion kinetic models, which suggests that the adsorption process can be well described bythe pseudo-second order equation.