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Adsorption of toluene, ethylbenzene and xylene isomers on multi-walled carbon nanotubes oxidized by different

Fei YU, Jie MA, Yanqing WU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 3,   Pages 320-329 doi: 10.1007/s11783-011-0340-4

Abstract: were employed as adsorbents to study their characterizations and adsorption performance of toluene, ethylbenzeneand xylene isomers (TEX) in an aqueous solution.The physicochemical properties of MWCNTs were greatly affected after oxidation, which influences TEXThe adsorption mechanism of TEX on treated MWCNTs is attributed to the combined action of hydrophobicfor TEX removal in wastewater treatment.

Keywords： adsorption     toluene     ethylbenzene and xylene isomers (TEX)     multi-walled carbon nanotube     surface oxidation    

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Progress in the research and development of p-xylene liquid phase oxidation process

WANG Lijun, CHENG Youwei, WANG Qinbo, LI Xi

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 3,   Pages 317-326 doi: 10.1007/s11705-007-0058-9

Abstract: The process of -xylene liquid phase oxidation to produce purified terephthalic acid (PTA) involves a

Keywords： development     -xylene     Zhejiang University     particular attention     viewpoint    

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Effect of TiO 2 loading on the activity of V/TiO 2 -Al 2 O 3 in the catalytic oxidehydrogenation of ethylbenzene

Xiaohong LI, Wenying LI,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 2,   Pages 142-146 doi: 10.1007/s11705-009-0233-2

Abstract: crystal structure, texture characteristic, acid property, and catalytic activity in dehydrogenation of ethylbenzene

Keywords： desorption     different     TiO-AlOmixed     physisorption     ethylbenzene    

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Effect of / molecular structures on pyrolysis performance and heat sink of decalin isomers

Frontiers of Chemical Science and Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11705-023-2375-z

Abstract: However, decalin contains two isomers with a tunable composition, and their effects on the pyrolysisHerein, we investigated the pyrolysis of decalin isomers, i.e., cis-decalin, trans-decalin

Keywords： endothermic fuel     decalin     pyrolysis     heat sink     molecular structure    

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The Progress and Application of the SKI Series Catalysts for Isomerization of C8 Aromatics

Qiao Yingbin

Strategic Study of CAE 1999, Volume 1, Issue 1,   Pages 73-77

Abstract: equilibrium can be approached for the isomerization of the mixed C8 aromatics with poor para - xylene

Keywords： isomerization     catalyst     xylene    

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Insights into carbon-based materials for catalytic dehydrogenation of low-carbon alkanes and ethylbenzene

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1623-1648 doi: 10.1007/s11705-023-2328-6

Abstract: Direct dehydrogenation with high selectivity and oxidative dehydrogenation with low thermal limit has been regarded as promising methods to solve the increasing demands of light olefins and styrene. Metal-based catalysts have shown remarkable performance for these reactions, such as Pt, CrOx, Co, ZrOx, Zn and V. Compared with metal-based catalysts, carbon materials with stable structure, rich pore texture and large surface area, are ideal platforms as the catalysts and the supports for dehydrogenation reactions. In this review, carbon materials applied in direct dehydrogenation and oxidative dehydrogenation reactions including ordered mesoporous carbon, carbon nanodiamond, carbon nanotubes, graphene and activated carbon, are summarized. A general introduction to the dehydrogenation mechanism and active sites of carbon catalysts is briefly presented to provide a deep understanding of the carbon-based materials used in dehydrogenation reactions. The unique structure of each carbon material is presented, and the diversified synthesis methods of carbon catalysts are clarified. The approaches for promoting the catalytic activity of carbon catalysts are elaborated with respect to preparation method optimization, suitable structure design and heteroatom doping. The regeneration mechanism of carbon-based catalysts is discussed for providing guidance on catalytic performance enhancement. In addition, carbon materials as the support of metal-based catalysts contribute to exploiting the excellent catalytic performance of catalysts due to superior structural characteristics. In the end, the challenges in current research and strategies for future improvements are proposed.

Keywords： carbon materials     dehydrogenation     active sites     mechanism     catalytic performance     support    

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Synthesis, physicochemical characterizations and catalytic performance of Pd/carbon-zeolite and Pd/carbon-CeO

Zeinab JAMALZADEH, Mohammad HAGHIGHI, Nazli ASGARI

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 365-381 doi: 10.1007/s11783-013-0520-5

Abstract: In this work, xylene removal from waste gas streams was investigated via catalytic oxidation over Pd/volatile organic compounds (VOCs), representing high catalytic performance of 98% for the abatement of xyleneFurthermore, a reaction network is proposed for catalytic oxidation of xylene over nanocatalysts.

Keywords： Pd/carbon-CeO2     Pd/carbon-zeolite     pine cone     ZnCl2     catalytic oxidation     xylene    

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Catalytic process modeling and sensitivity analysis of alkylation of benzene with ethanol over MIL-101(Fe) and MIL-88(Fe)

Ehsan Rahmani, Mohammad Rahmani

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 1100-1111 doi: 10.1007/s11705-019-1891-3

Abstract: A solvothermal method was used to synthesize MIL-101(Fe) and MIL-88(Fe), which were used for alkylation of benzene. The synthesized catalysts were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning electron microscope, dynamic light scattering, and BET techniques. Metal-organic frameworks (MOFs) were modeled to investigate the catalytic performance and existence of mass transfer limitations. Calculated effectiveness factors revealed absence of internal and external mass transfer. Sensitivity analysis revealed best operating conditions over MIL-101 at 120°C and 5 bar and over MIL-88 at 142°C and 9 bar.

Keywords： MOFs     alkylation     ethylbenzene     catalysts pellet model     kinetic model     sensitivity analysis    

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Title Author Date Type Operation

Adsorption of toluene, ethylbenzene and xylene isomers on multi-walled carbon nanotubes oxidized by different

Fei YU, Jie MA, Yanqing WU

Journal Article

Progress in the research and development of p-xylene liquid phase oxidation process

WANG Lijun, CHENG Youwei, WANG Qinbo, LI Xi

Journal Article

Effect of TiO 2 loading on the activity of V/TiO 2 -Al 2 O 3 in the catalytic oxidehydrogenation of ethylbenzene

Xiaohong LI, Wenying LI,

Journal Article

Effect of / molecular structures on pyrolysis performance and heat sink of decalin isomers

Journal Article

The Progress and Application of the SKI Series Catalysts for Isomerization of C8 Aromatics

Qiao Yingbin

Journal Article

Insights into carbon-based materials for catalytic dehydrogenation of low-carbon alkanes and ethylbenzene

Journal Article

Synthesis, physicochemical characterizations and catalytic performance of Pd/carbon-zeolite and Pd/carbon-CeO

Zeinab JAMALZADEH, Mohammad HAGHIGHI, Nazli ASGARI

Journal Article

Catalytic process modeling and sensitivity analysis of alkylation of benzene with ethanol over MIL-101(Fe) and MIL-88(Fe)

Ehsan Rahmani, Mohammad Rahmani

Journal Article