典型文献
Polyoxymethylene dimethyl ethers synthesis from methanol and formaldehyde solution over one-pot synthesized spherical mesoporous sulfated zirconia
文献摘要：
The synthesis of polyoxymethylene dimethyl ethers as an ideal diesel fuel additive is the current hot topic of modern petrochemical industry for their expedient properties in mitigating air pollutants emission during combustion.In this work,a series of spherical sulfated zirconia catalysts were prepared by a one-pot hydrothermal method assisted with surfactant cetyltrimethylammonium bromide(CTAB).The prepared sulfated zirconia catalysts were used to catalyze PODEn synthesis from methanol and formalde-hyde solution.Various characterization(XRD,BET,SEM,TGA,NH3-TPD,FTIR,and Py-IR)were employed to elaborate the structure-activity relationship of the studied catalytic system.The results demonstrated that S/Zr molar ratio in precursor solution played an effective role on catalyst morphology and acidic properties,where the weak Br?nsted acid sites and strong Lewis acid sites were favorable to the conver-sion of methanol and formation of long-chain PODEn,respectively.The reaction parameters such as cat-alyst amount,molar ratio of FA/MeOH,reaction time,temperature and pressure were optimized.The speculated reaction pathway for PODEn synthesis was proposed based on the synergy of Br?nsted and Lewis acid sites,which suggested that Br?nsted and Lewis acid sites might be advantageous to the acti-vation of polyoxymethylene hemiformals[CH3(OCH2)nOH]and methylene glycol(HOCH2OH),respectively.
文献关键词：
中图分类号：
作者姓名：
Xiangjun Li;Shujun Li;Xiaoping Wang;Muhammad Asif Nawaz;Dianhua Liu
作者机构：
State Key Lab of Chemical Engineering,East China University of Science and Technology,Shanghai 200237,China
文献出处：
引用格式：
[1]Xiangjun Li;Shujun Li;Xiaoping Wang;Muhammad Asif Nawaz;Dianhua Liu-.Polyoxymethylene dimethyl ethers synthesis from methanol and formaldehyde solution over one-pot synthesized spherical mesoporous sulfated zirconia)[J].中国化学工程学报（英文版）,2022(06):161-172
A类：
Polyoxymethylene,expedient,formalde,hemiformals,OCH2,HOCH2OH
B类：
dimethyl,ethers,synthesis,from,methanol,formaldehyde,solution,over,one,pot,synthesized,spherical,mesoporous,sulfated,zirconia,polyoxymethylene,ideal,diesel,fuel,additive,current,hot,topic,modern,petrochemical,industry,their,properties,mitigating,air,pollutants,emission,during,combustion,In,this,work,series,catalysts,were,prepared,by,hydrothermal,method,assisted,surfactant,cetyltrimethylammonium,bromide,CTAB,used,catalyze,PODEn,Various,characterization,BET,TGA,NH3,TPD,FTIR,Py,employed,elaborate,structure,activity,relationship,studied,catalytic,system,results,demonstrated,that,Zr,molar,ratio,precursor,played,effective,role,morphology,acidic,where,weak,Br,nsted,sites,strong,Lewis,favorable,conver,formation,long,chain,respectively,reaction,parameters,such,amount,FA,MeOH,temperature,pressure,optimized,speculated,pathway,was,proposed,synergy,which,suggested,might,be,advantageous,vation,CH3,nOH,glycol
AB值：
0.554535
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
