文献类型：期刊文献

中文题名：Catalyst particle shapes and pore structure engineering for hydrodesulfurization and hydrodenitrogenation reactions

作者：Yao Shi[1];Zhao Li[1];Changfeng Yang[1];Zhanlin Yang[2];Zhenhui Lv[2];Chong Peng[2];Bao-Lian Su[3];Weikang Yuan[1];Xinggui Zhou[1];Xuezhi Duan[1]

机构：[1]State Key Laboratory of Chemical Engineering,East China University of Science and Technology,Shanghai 200237,China;[2]Dalian Research Institute of Petroleum and Petrochemicals,SINOPEC,Dalian 116045,China;[3]Laboratory of Inorganic Materials Chemistry,University of Namur,B-5000 Namur,Belgium

年份：2022

卷号：16

期号：6

起止页码：897

中文期刊名：Frontiers of Chemical Science and Engineering

外文期刊名：化学科学与工程前沿（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2021_2022】；PubMed;

基金：the National Natural Science Foundation of China(Grant Nos.22038003,21922803,22178100 and 21776077);the Innovation Program of Shanghai Municipal Education Commission,the Program of Shanghai Academic/Technology Research Leader(Grant No.21XD1421000).

语种：英文

中文关键词：hydrodesulfiirization;hydrodenitrogenation;particle shape;pore structure

摘要：Catalyst particle shapes and pore structure engineering are crucial for alleviating internal diffusion limitations in the hydrodesulfiirization(HDS)/hydrodeni-trogenation(HDN)of gas oil.The effects of catalyst particle shapes(sphere,cylinder,trilobe,and tetralobe)and pore structures(pore diameter and porosity)on HDS/HDN performance at the particle scale are investigated via mathematical modeling.The relationship between particle shape and effectiveness factor is first established,and the specific surface areas of different catalyst particles show a positive correlation with the average HDS/HDN reaction rates.The catalyst particle shapes primarily alter the average HDS/HDN reaction rate to adjust the HDS/HDN effectiveness factor.An optimal average HDS/HDN reaction rate exists as the catalyst pore diameter and porosity increase,and this optimum value indicates a tradeoff between diffusion and reaction.In contrast to catalyst particle shapes,the catalyst pore diameter and the porosity of catalyst particles primarily alter the surface HDS/HDN reaction rate to adjust the HDS/HDN effectiveness factor.This study provides insights into the engineering of catalyst particle shapes and pore structures for improving HDS/HDN catalyst particle efficiency.