Khosravi-Nikou Mohammad Reza, Safari Mohammad Hadi, Rad Amir Asadi, Hassani Pouya, Mohammadian Mohammad, Ahmadi Maryam, Ghafari Negin, Naseri Maryam
Department of Gas Engineering, Ahwaz Faculty of Petroleum, Petroleum University of Technology, Ahwaz, Iran.
Department of Chemical Engineering, Abadan Faculty of Petroleum, Petroleum University of Technology, Abadan, Iran.
Sci Rep. 2021 Apr 23;11(1):8848. doi: 10.1038/s41598-021-88439-6.
In this study, a modified mesoporous adsorbent (MSU-S) impregnated by aluminum was used to remove the aromatic sulfur compounds from n-decane as the model fuel. Physical and chemical properties of as-synthesized adsorbent were investigated by XRD (X-Ray Diffraction), SEM (Scanning Electron Microscopy), FTIR (Fourier Transform Infrared spectroscopy) and BET (Brunauer-Emmett-Teller) method. Adsorptive desulfurization of model fuel was studied through batch and continues processes under mild temperature and normal atmospheric pressure. The equilibrium adsorption was modeled by Langmuir, Temkin, and Freundlich and the kinetics of adsorption was studied through first, second and intraparticle diffusion models. It was figured out that Temkin and the pseudo-second-order model were best fitting the adsorption equilibrium and describing the kinetics, respectively.
在本研究中，采用浸渍铝的改性介孔吸附剂（MSU-S）从正癸烷作为模型燃料中去除芳香族硫化合物。通过X射线衍射（XRD）、扫描电子显微镜（SEM）、傅里叶变换红外光谱（FTIR）和布鲁诺尔-埃米特-特勒（BET）方法研究了合成吸附剂的物理和化学性质。在温和温度和常压下，通过间歇和连续过程研究了模型燃料的吸附脱硫。用朗缪尔、特姆金和弗伦德里希模型对平衡吸附进行了建模，并通过一级、二级和颗粒内扩散模型研究了吸附动力学。结果表明，特姆金模型和伪二级模型分别最适合描述吸附平衡和动力学。
