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Modification of acidity of Mo-Fe/HZSM-5 zeolite via argon plasma treatment

ZHU Xinli, YU Kailu, CHENG Dangguo, XIA Qing, LIU Changjun, ZHANG Yueping

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 55-58 doi: 10.1007/s11705-008-0005-4

Abstract: The NH-TPD characterization was conducted to confirm that the acidity of Mo-Fe/HZSM-5 zeolite could be

Keywords： phenanthrene     Mo-Fe/HZSM-5     conversion     glow discharge     polycyclic    

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Fast and catalytic pyrolysis of xylan: Effects of temperature and M/HZSM-5 (M= Fe, Zn) catalysts on pyrolytic

Xifeng ZHU, Qiang LU, Wenzhi LI, Dong ZHANG,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 424-429 doi: 10.1007/s11708-010-0015-z

Abstract: conducted to investigate the effects of temperature on pyrolytic products, and to reveal the effect of HZSM-5-5 and M/HZSM-5 (M= Fe, Zn) zeolites on pyrolysis vapors.Catalytic cracking of pyrolysis vapors with HZSM-5 and M/HZSM-5 (M= Fe, Zn) catalysts significantly alteredM/HZSM-5 catalysts were more effective than HZSM-5 in reducing the oxygen-containing compounds, and therefore, they helped to produce higher contents of hydrocarbons than HZSM-5.

Keywords： xylan     fast pyrolysis     catalytic pyrolysis     Py-GC/MS     HZSM-5    

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Catalytic fast pyrolysis of Kraft lignin with HZSM-5 zeolite for producing aromatic hydrocarbons

Xiangyu LI, Lu SU, Yujue WANG, Yanqing YU, Chengwen WANG, Xiaoliang LI, Zhihua WANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 3,   Pages 295-303 doi: 10.1007/s11783-012-0410-2

Abstract: Catalytic fast pyrolysis (CFP) of Kraft lignins with HZSM-5 zeolite for producing aromatics was investigatedTwo Kraft lignins were fast pyrolyzed in the absence and presence of HZSM-5 in a Curie-point pyrolyzerHowever, the presence of HZSM-5 changed the product distribution dramatically.As the SiO /Al O ratio of HZSM-5 decreased from 200 to 25 and the catalyst-to-lignin ratio increased

Keywords： lignin     catalytic fast pyrolysis     HZSM-5     zeolite     aromatic hydrocarbon    

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Catalytic hydrogenation of insoluble organic matter of CS/Acetone from coal over mesoporous HZSM-5 supported

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 10,   Pages 1505-1513 doi: 10.1007/s11705-022-2164-0

Abstract: Four supported catalysts, nickel and ruthenium on a HZSM-5 support, were prepared by equal volume impregnationAccording to the catalytic hydro-conversion results of the model compound, Ni−Ru/HZSM-5 exhibited thefurther heterolytically split H···H into immobile H‒ attached on the acidic centers of Ni−Ru/HZSM-5-5 and relatively mobile H+.-5.

Keywords： HZSM-5     Ni-based catalyst     catalytic hydrogenation     coal     model compound    

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ZnZr/HZSM-5 as efficient catalysts for alkylation of benzene with carbon dioxide

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 4,   Pages 404-414 doi: 10.1007/s11705-022-2215-6

Abstract: carbon dioxide and hydrogen reaction was proceeded by using the mixture of zinc-zirconium oxide and HZSM-5-5 as bifunctional catalyst.

Keywords： carbon dioxide     alkylation of benzene     solid solution catalyst     bifunctional catalyst    

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Methanol to propylene: the effect of iridium and iron incorporation on the HZSM-5 catalyst

Alireza MOHAMMADREZAEI, Sadegh PAPARI, Mousa ASADI, Abas NADERIFAR, Reza GOLHOSSEINI

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 3,   Pages 253-258 doi: 10.1007/s11705-012-0902-4

Abstract: The effect of iridium and iron impregnation of HZSM-5 zeolite on the methanol to propylene reaction (The results indicate that HZSM-5 zeolite modified by iron and iridium increased propylene selectivityThe selectivity of propylene was higher for Ir/H-ZSM-5 than for Fe/H-ZSM-5, where Fe/H-ZSM-5 was morestable than Ir/H-ZSM-5.

Keywords： HZSM-5     promoter     iridium     iron     MTP    

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Dealumination and desilication for Al-rich HZSM-5 zeolite via steam-alkaline treatment and its application

Yuehua Fang, Fan Yang, Xuan He, Xuedong Zhu

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 543-553 doi: 10.1007/s11705-018-1778-8

Abstract: The hierarchical HZSM-5 was prepared via dealumination and desilication of commercial Al-rich HZSM-5,The results showed that partial framework of HZSM-5 was removed after steam treatment at 0.15 MPa, 500HZSM-5 with high specific surface area and much mesoporosity was obtained by the subsequent alkalineDealumination and desilication of Al-rich HZSM-5 zeolites became more effective using a combination ofMethanol aromatization reaction was employed to evaluate the catalytic performance of treated HZSM-5

Keywords： steam treatment     alkaline treatment     hierarchical ZSM-5     methanol aromatization    

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Alkylation of benzene with carbon dioxide to low-carbon aromatic hydrocarbons over bifunctional Zn-Ti/HZSM-5-5 catalyst

Xiangyu Liu, Yanling Pan, Peng Zhang, Yilin Wang, Guohao Xu, Zhaojie Su, Xuedong Zhu, Fan Yang

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 3,   Pages 384-396 doi: 10.1007/s11705-021-2045-y

Abstract: realized by a series of low-cost bifunctional catalysts containing zinc/titanium oxides (Zn/Ti oxides) and HZSM-5-5 molecular sieves in a fixed-bed reactor.By regulating and controlling oxygen vacancies of Zn/Ti oxides and the acidities of HZSM-5, benzene conversion

Keywords： carbon dioxide     benzene     alkylation     bifunctional catalyst     mechanism    

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On the monolayer dispersion behavior of Co3O4 on HZSM-5 support: designing applicable

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1741-1754 doi: 10.1007/s11705-023-2332-x

Abstract: Based on monolayer dispersion theory, Co3O4/ZSM-5 catalysts with different loadingsCo3O4 can spontaneously disperse on HZSM-5 support with a monolayer dispersion/sub> above the capacity is harmful to the reaction performance. 4% Co3O4/ZSM-5,It is proposed the optimal Co3O4/ZSM-5 catalyst can be prepared by loading thecapacity amount of Co3O4 onto HZSM-5 support.

Keywords： Co3O4/ZSM-5     NOx-SCR by NH3     monolayer dispersion    

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assessment of the effects of chlorine, chloramine, and UV on bacteria by using nucleic acid stains and 5-

Xuebiao Nie, Wenjun Liu, Mo Chen, Minmin Liu, Lu Ao

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0884-4

Abstract: This study detected the metabolic activity of and by using an FCM method based on 5-cyano-2,3-ditolyltetrazolium

Keywords： Flow cytometry     Escherichia coli     Staphylococcusaureus     UV     CTC     SYTO 9    

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Catalytic cracking of endothermic fuels in coated tube reactor

LI Jia, ZOU Jijun, ZHANG Xiangwen, GUO Wei, MI Zhentao

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 2,   Pages 181-185 doi: 10.1007/s11705-008-0032-1

Abstract: Suspensoid of HZSM-5 or HY zeolites mixed with a self-made ceramic-like binder was coated on the innerm and the particle size of the zeolites is in the range of 1–5 ?m.

Keywords： HZSM-5     self-made ceramic-like     gas-aided     Conversion     Suspensoid    

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Effect of SiO

Qian WANG, Lei WANG, Hui WANG, Zengxi LI, Xiangping ZHANG, Suojiang ZHANG, Kebin ZHOU

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 79-88 doi: 10.1007/s11705-010-0550-5

Abstract: The results are compared with those of the commercial HZSM-5, which show that the crystallinity and particlediameter of SAPO-34 as well as HZSM-5 increase with SiO /Al O ratio.The variation of BET surface area of SAPO-34 is different from that of HZSM-5 and the sample with SiOFT-IR spectra indicate that HZSM-5 has both Br?nsted and Lewis acid sites and Br?According to the product distribution, the reaction mechanism over HZSM-5 catalysts is proposed.

Keywords： HZSM-5     SAPO-34     methanol-to-olefin (MTO)     SiO2/Al2O3 ratio    

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Fe

Lifeng Zhang, Yifei Song, Weiping Wu, Robert Bradley, Yue Hu, Yi Liu, Shouwu Guo

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 1,   Pages 156-163 doi: 10.1007/s11705-020-1986-x

Abstract: Unique self-assembled iron(II) molybdenum(IV) oxide (Fe Mo O ) mesoporous hollow spheres have been facilelysmall nanoparticles on the surface of the hollow spheres not only provides more active sites for the FeMo O , but also benefits the stability of the hollow structure, and thus improved the lithium storageproperties of Fe Mo O .The Fe Mo O mesoporous hollow spheres exhibit high initial discharge and charge capacities of 1189 and

Keywords： molybdates     Fe2Mo3O8     hollow spheres     lithium ion batteries     anodes    

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Risk analysis methods of the water resources system under uncertainty

Zeying GUI,Chenglong ZHANG,Mo Li,Ping GUO

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 3,   Pages 205-215 doi: 10.15302/J-FASE-2015073

Abstract: The main characteristic of the water resources system (WRS) is its great complexity and uncertainty, which makes it highly desirable to carry out a risk analysis of the WRS. The natural environmental, social economic conditions as well as limitations of human cognitive ability are possible sources of the uncertainties that need to be taken into account in the risk analysis process. In this paper the inherent stochastic uncertainty and cognitive subjective uncertainty of the WRS are discussed first, from both objective and subjective perspectives. Then the quantitative characterization methods of risk analysis are introduced, including three criteria (reliability, resiliency and vulnerability) and five basic optimization models (the expected risk value model, conditional value at risk model, chance-constrained risk model, minimizing probability of risk events model, and the multi-objective optimization model). Finally, this paper focuses on the various methods of risk analysis under uncertainty, which are summarized as random, fuzzy and mixed methods. A more comprehensive risk analysis methodology for the WRS is proposed based on the comparison of the advantages, disadvantages and applicable conditions of these three methods. This paper provides a decision support of risk analysis for researchers, policy makers and stakeholders of the WRS.

Keywords： water resources system     evaluation criterion     optimization model     risk analysis method     uncertainty    

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The performance of nitrate-reducing Fe(II) oxidation processes under variable initial Fe/N ratios: The

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1366-2

Abstract:

•Bacterially-mediated coupled N and Fe processes examined in incubation

Keywords： Denitrification     N2O emission     Fe(II) oxidation     Fe/N ratio     Fe minerals    

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Title Author Date Type Operation

Modification of acidity of Mo-Fe/HZSM-5 zeolite via argon plasma treatment

ZHU Xinli, YU Kailu, CHENG Dangguo, XIA Qing, LIU Changjun, ZHANG Yueping

Journal Article

Fast and catalytic pyrolysis of xylan: Effects of temperature and M/HZSM-5 (M= Fe, Zn) catalysts on pyrolytic

Xifeng ZHU, Qiang LU, Wenzhi LI, Dong ZHANG,

Journal Article

Catalytic fast pyrolysis of Kraft lignin with HZSM-5 zeolite for producing aromatic hydrocarbons

Xiangyu LI, Lu SU, Yujue WANG, Yanqing YU, Chengwen WANG, Xiaoliang LI, Zhihua WANG

Journal Article

Catalytic hydrogenation of insoluble organic matter of CS/Acetone from coal over mesoporous HZSM-5 supported

Journal Article

ZnZr/HZSM-5 as efficient catalysts for alkylation of benzene with carbon dioxide

Journal Article

Methanol to propylene: the effect of iridium and iron incorporation on the HZSM-5 catalyst

Alireza MOHAMMADREZAEI, Sadegh PAPARI, Mousa ASADI, Abas NADERIFAR, Reza GOLHOSSEINI

Journal Article

Dealumination and desilication for Al-rich HZSM-5 zeolite via steam-alkaline treatment and its application

Yuehua Fang, Fan Yang, Xuan He, Xuedong Zhu

Journal Article

Alkylation of benzene with carbon dioxide to low-carbon aromatic hydrocarbons over bifunctional Zn-Ti/HZSM-5-5 catalyst

Xiangyu Liu, Yanling Pan, Peng Zhang, Yilin Wang, Guohao Xu, Zhaojie Su, Xuedong Zhu, Fan Yang

Journal Article

On the monolayer dispersion behavior of Co3O4 on HZSM-5 support: designing applicable

Journal Article

assessment of the effects of chlorine, chloramine, and UV on bacteria by using nucleic acid stains and 5-

Xuebiao Nie, Wenjun Liu, Mo Chen, Minmin Liu, Lu Ao

Journal Article

Catalytic cracking of endothermic fuels in coated tube reactor

LI Jia, ZOU Jijun, ZHANG Xiangwen, GUO Wei, MI Zhentao

Journal Article

Effect of SiO

Qian WANG, Lei WANG, Hui WANG, Zengxi LI, Xiangping ZHANG, Suojiang ZHANG, Kebin ZHOU

Journal Article

Fe

Lifeng Zhang, Yifei Song, Weiping Wu, Robert Bradley, Yue Hu, Yi Liu, Shouwu Guo

Journal Article

Risk analysis methods of the water resources system under uncertainty

Zeying GUI,Chenglong ZHANG,Mo Li,Ping GUO

Journal Article

The performance of nitrate-reducing Fe(II) oxidation processes under variable initial Fe/N ratios: The

Journal Article