| 1 | Kinetic Model of LCO Selective Hydrogenation on NiMoW/Al_(2)O_(3) Catalyst显示文摘In order to investigate the hydrofining process of LCO for producing aromatics and gasoline,the selective hydrogenation of polycyclic aromatic hydrocarbons(PAHs),a major component of light cycle oil(LCO),was studied using a NiMoW/Al_(2)O_(3)catalyst.Based on the study of the reversible hydrogenation reaction,PAHs in the selective hydrogenation process could be effectively simulated by the modeled CH and CH_(2) groups,and the hydrodesulfurization and hydrodenitrogenation kinetic models could be further established in this process.The results showed that the kinetic models developed could fit the experimental data effectively and predict the content of S,N,and aromatics in the selective hydrogenation products of LCO. | Ju Xueyan Zhang Kui Xi Yuanbing Wang Zhe Nie Hong | 2022 | China Petroleum Processing & Petrochemical Technology2022，24，3： | 2 |
| 2 | Tetralin Hydrocracking Reaction Network to Single-Ring Aromatics on Bifunctional Catalysts显示文摘Conversion of LCO(light cycle oil)to BTX(benzene,toluene,and xylene)is an economically valuable method for refineries.However,this approach still faces difficulties as the main reactions are not clearly understood.Here we study the detailed hydrocracking pathway of typical reactants,1-methylnaphthalene and tetralin,through molecular simulations and experiments to improve our understanding of the conversion process of LCO to BTX.Molecular simulations demonstrate that the rate-determining step is the isomerization pathway of six-membered ring to five-membered ring in tetralin as its activation energy(ΔEa)is the highest among all the reactions and the order ofΔEa of reactions is isomerization>ring-opening≈side-chain cleavage.The results of experiments show that with the increase in reaction depth,i.e.,through a high temperature(350-370℃)and low LHSV(4.5-6.0 h^(−1)),isomerization,ring-opening,and side-chain cleavage reactions occurred,thus improving the selectivity and yield of alkyl aromatics. | Ju Xueyan Huang Zhen Zhang Rui Wang Lixin Hu zhihai Li Dadong | 2022 | China Petroleum Processing & Petrochemical Technology2022，24，2： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员