典型文献
Tetralin Hydrocracking Reaction Network to Single-Ring Aromatics on Bifunctional Catalysts
文献摘要:
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 of ΔEa 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.
文献关键词:
中图分类号:
作者姓名:
Ju Xueyan;Huang Zhen;Zhang Rui;Wang Lixin;Hu zhihai;Li Dadong
作者机构:
SINOPEC Research Institute of Petroleum Processing,Beijing 100083
文献出处:
引用格式:
[1]Ju Xueyan;Huang Zhen;Zhang Rui;Wang Lixin;Hu zhihai;Li Dadong-.Tetralin Hydrocracking Reaction Network to Single-Ring Aromatics on Bifunctional Catalysts)[J].中国炼油与石油化工(英文版),2022(02):14-22
A类:
Tetralin,Hydrocracking,Aromatics,refineries,hydrocracking,methylnaphthalene,tetralin
B类:
Reaction,Network,Single,Ring,Bifunctional,Catalysts,Conversion,LCO,light,cycle,oil,BTX,benzene,toluene,xylene,economically,valuable,method,However,this,approach,still,faces,difficulties,main,reactions,are,not,clearly,understood,Here,study,detailed,pathway,typical,reactants,through,molecular,simulations,experiments,improve,our,understanding,conversion,process,Molecular,demonstrate,that,determining,step,isomerization,six,membered,ring,five,its,activation,energy,Ea,highest,among,order,opening,side,chain,cleavage,results,show,increase,depth,temperature,low,LHSV,occurred,thus,improving,selectivity,yield,alkyl,aromatics
AB值:
0.560695
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