文献类型：期刊文献

英文题名：Dynamic simulation of adsorption desulfurization from diesel fuel over activated carbon in the fixed bed

作者：Ren, Mingling[1];Fan, Feichao[1];Zhou, Bing[1];Liang, Xiaoyi[1];Yang, Zhen[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Minist Educ, Sch Chem Engn, Key Lab Specially Funct Polymer Mat & Related Tec, Shanghai 200237, Peoples R China

年份：2022

卷号：183

起止页码：274

外文期刊名：CHEMICAL ENGINEERING RESEARCH & DESIGN

收录：;EI(收录号：20222412210882);WOS:【SCI-EXPANDED(收录号:WOS:000880012600008)】；

基金：This work is partly supported by the National Nature Science Foundation of China (No: 21978097) and the Fundamental Research Funds for the Central Universities (No: JKD01211701). The Aspen Adsorption software provided by East China University of Science and Technology is acknowledged. The authors would like to thank the anonymous reviewers for their constructive suggestions that have improved the quality of this work.

语种：英文

外文关键词：Dynamic simulation; Diesel desulfurization; Polyaromatics; Nitrogen compounds; Activated carbon

摘要：A fixed bed for adsorption desulfurization (ADS) from a typical diesel fuel is designed via dynamic simulation, taking into account the hindering effects of polyaromatics (PAHs) and nitrogen compounds. Experimental results reveal the order of these compounds in term of adsorption affinity as dibenzothiophene > indole > quinoline > methylnaphthalene > naphthalene. At equimolar concentrations, the inhibitory effect of nitrogen compounds is substantially larger than that of PAHs. The simulations of multicomponent breakthrough curve based on the ideal adsorbed solution theory and the linear driving force model match the experimental data. The mass transfer process is controlled using a combination of liquid film diffusion and pore diffusion. For adsorbate molecules with a critical diameter of approximately 0.7 nm, the mass transfer process possibly occurs from the liquid phase into macro- or mesopores before being adsorbed in micropores. The designed fixed bed for ADS from a typical diesel fuel shows a good negative linear relationship between the liquid hourly space velocity and the ratio of dibenzothiophene to the total adsorption amount (maximum value of 9.82%). (C) 2022 Published by Elsevier Ltd on behalf of Institution of Chemical Engineers.