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Study on the hydrorefining of heavy oil from biomass alcoholysis in the presence of V-W-Mo-Cu catalyst

Zou Xianwu,Qin Tefu,Li Gaiyun and Huang Luohua

Strategic Study of CAE 2014, Volume 16, Issue 4,   Pages 69-73

Abstract: Therefore，the hydrorefining of heavy oil was studied in the presence of V-W-Mo-Cu catalyst in this paper.Theresults showed that the catalyst revealed its reactivity only at above 330 ℃，and achieved the highestHowever，the Fourier transform infrared spectrometer (FTIR) analysis on catalyst after hydrogenation showedAfter being baked at 550 ℃，the catalyst could be reused more than 5 times，and the yield of light oil

Keywords： biomass     alcoholysis     heavy oil     hydrogenation     V-W-Mo-Cu catalyst     image processing    

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Investigation of the preparation methodologies of Pd-Cu single atom alloy catalysts for selective hydrogenation

Xinxiang Cao,Arash Mirjalili,James Wheeler,Wentao Xie,Ben W.-L. Jang

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 4,   Pages 442-449 doi: 10.1007/s11705-015-1547-x

Abstract: Galvanic replacement, co-impregnation and sequential impregnation have been employed to prepare Pd-Cubimetallic catalysts with less than 1 wt-% Cu and ca. 0.03 wt-% Pd for selective hydrogenation of acetylenefield-scanning transmission electron microscopy (HAADF-STEM) and H chemisorption results confirmed that Pd-CuFurthermore, the single atom alloy catalyst prepared by sequential incipient wetness impregnation was

Keywords： H2 pulse chemisorption     palladium-copper bimetallic catalyst     single atom alloy     acetylene hydrogenation    

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Reconstruction of Cu–ZnO catalyst by organic acid and deactivation mechanism in liquid-phase hydrogenation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1311-1319 doi: 10.1007/s11705-022-2281-9

Abstract: A reconstructed Cu–ZnO catalyst with improved stability was fabricated by organic acid treatment methodAccording to the characterization results of the fresh Cu–ZnO and reconstructed Cu–ZnO, three differentspecies, ZnO that weakly interacted with Cu species and isolated ZnO.The reconstruction of the Cu–ZnO catalyst by the organic acid treatment method resulted in a new Cu–ZnOcatalyst with more Cu+ and less ZnO species that leads to deactivation.

Keywords： liquid phase     hydrogenation     Cu–ZnO     deactivation mechanism     1     4-butanediol     diester    

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Catalytic performance of Co-Mo-Ce-K/γ-Al

Yuqiong ZHAO, Yongfa ZHANG

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 457-460 doi: 10.1007/s11705-010-0524-7

Abstract: The catalytic performance of Co-Mo-Ce-K/γ-Al O catalyst for the shift reaction of CO in coke oven gasresults indicate that Ce and K have a synergistic effect on promoting the catalytic activity, and the Co-Mo-Ce-K/γ-Al O catalyst with 3.0 wt-% CeO and 6.0 wt-% K O exhibits the highest activity.TPR characterization results indicate that the addition of CeO -K O in the Co-Mo-Ce-K/γ-Al O catalystinto tetrahedrally coordinated Mo , which has a close relationship with the catalytic activity.

Keywords： coke oven gas     water gas shift reaction     sulfur-tolerant catalyst     cerium dioxide    

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Synthesis and High-Throughput Characterization of Microstructure and Phase Transformation in Ni–Ti–Cu–V Article

Naila M. Al Hasan, Huilong Hou, Suchismita Sarkar, Sigurd Thienhaus, Apurva Mehta, Alfred Ludwig, Ichiro Takeuchi

Engineering 2020, Volume 6, Issue 6,   Pages 637-643 doi: 10.1016/j.eng.2020.05.003

Abstract: In this study, a composition spread of Ni–Ti–Cu–V thin-film library was synthesized

Keywords： Ni–Ti–Cu–V alloys     Combinatorial materials science     Quaternary alloys     Shape memory alloys     Thin-film    

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Effective regeneration of thermally deactivated commercial V-W-Ti catalysts

Xuesong SHANG, Jianrong LI, Xiaowei YU, Jinsheng CHEN, Chi HE

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1,   Pages 38-46 doi: 10.1007/s11705-011-1167-z

Abstract: regenerated solutions, namely NH Cl (1 mol/L) and dilute H SO (0.5 mol/L), were employed to treat the used catalystThe results suggest that the anatase phase of the used catalyst is maintained after exposure to highThe catalyst regenerated by aqueous NH Cl had a higher activity than that of the catalyst treated bythat the NH generated from the decomposition of NH Cl at high temperatures can be adsorbed onto the catalystThe aggregated V O were partially re-dispersed during the regeneration process, and the intrinsic oxidation

Keywords： V2O5-WO3/TiO2 catalysts     thermal deactivation     regeneration    

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Efficient and selective electro-reduction of nitrobenzene by the nano-structured Cu catalyst prepared

Yali CHEN,Lu XIONG,Weikang WANG,Xing ZHANG,Hanqing YU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 897-904 doi: 10.1007/s11783-015-0782-1

Abstract: Electrochemical reduction is a promising method and Cu-based catalysts have been found to be an efficientIn this work, Cu catalysts with different morphologies were fabricated on Ti plate using a facile electrodepositonThe dendritic nano-structured Cu catalysts obtained at high applied voltages exhibited an excellent efficiencyinitial nitrobenzene concentration on the selective reduction of nitrobenzene to aniline using the CuThe fabricated nano-structured Cu catalysts also exhibited good stability.

Keywords： nitrobenzene     nano-structured Cu     electro-reduction     voltage-dependent electrodeposition     high selectivity    

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Preparation of Cu/ZnO/Al

Hui FAN, Huayan ZHENG, Zhong LI

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 445-451 doi: 10.1007/s11705-010-0521-x

Abstract: Cu/ZnO/Al O catalysts with Cu/Zn/Al ratios of 6/3/1 were precipitated and aged by conventional and microwavemicrowave irradiation on the catalytic performance was investigated to optimize the preparing condition of Cu/ZnO/Al O catalyst., the catalyst aged at 80°C for 1 h under microwave irradiation possessed higher methanol space timeThe activity and stability of the catalyst was further enhanced when microwave irradiation was used in

Keywords： microwave irradiation     precipitation temperature     aging temperature     methanol synthesis     Cu/ZnO/Al2O3 catalyst    

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Performance of a Hierarchically Nanostructured W–Cu Composite Produced via Mediating Phase Separation Article

Chao Hou, Hao Lu, Zhi Zhao, Xintao Huang, Tielong Han, Junhua Luan, Zengbao Jiao, Xiaoyan Song, Zuoren Nie

Engineering 2023, Volume 26, Issue 7,   Pages 173-184 doi: 10.1016/j.eng.2022.09.017

Abstract:

The challenge of fabricating nanostructured W–Cu composites by powder metallurgy has been solvedA hierarchically nanostructured (HN) W–Cu composite was prepared using intermediary Al throughIn addition to a dual network composed of a Cu phase and the W–Cu nanostructure, dense Al-containingCompared with a pristine W/Cu interface, the newly formed W/Cu interfaces modulated by Al and the coherentndash;Cu composites with the same Cu content.

Keywords： Immiscible-component composite     Phase separation     Nanostructure     Mechanical properties     Interface modulation    

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Promotional effect of ion-exchanged K on the low-temperature hydrothermal stability of Cu/SAPO-34 and

Chen Wang, Jun Wang, Jianqiang Wang, Meiqing Shen

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 2, doi: 10.1007/s11783-020-1322-1

Abstract: Abstract • K+ hinder the structural degradation of Cu/SAPO-34 under humid condition<100°C. • K+ on Cuand inferior SCR activity at high temperature. • Fe/Beta was used to compensate the low activity of CuK ions were introduced onto Cu/SAPO-34 catalysts via the ion-exchange process in order to improve theirHowever, although the 0.7 wt% K catalyst maintained the same crystallinity, active site abundance, andlow-temperature SCR activity as the fresh catalyst upon aging, an apparent decrease in SCR activity

Keywords： Selective catalytic reduction     Cu/SAPO-34 catalyst     Ion-exchanged K     Low-temperature hydrothermal stability     Fe/Beta catalyst    

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NO hydrogenation to NH over FeCu/TiO catalyst with improved activity

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 1973-1985 doi: 10.1007/s11705-023-2364-2

Abstract: Hence, developing an efficient and environmentally friendly catalyst is imperative.In this study, we employed a straightforward and efficient impregnation technique to create various Cu-dopedNotably, the optimized 10Fe-8Cu/TiO2 catalyst exhibited exceptional catalytic performanceOur findings unequivocally demonstrate that Cu doping enhances the rate-limiting hydrogenation step and

Keywords： NO hydrogenation     synthetic ammonia     10Fe-xCu/TiO2     high selectivity    

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Preparation and investigation of Pd doped Cu catalysts for selective hydrogenation of acetylene

Xinxiang Cao, Tengteng Lyu, Wentao Xie, Arash Mirjalili, Adelaide Bradicich, Ricky Huitema, Ben W.

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4,   Pages 522-533 doi: 10.1007/s11705-019-1822-3

Abstract: A series of PdCu bimetallic catalysts with low Cu and Pd loadings and different Cu: Pd atomic ratiosprepared by conventionally sequential impregnation (CSI) and modified sequential impregnation (MSI) of Cumetal particles due to the hydrogen spillover from Pd to Cu(NO ) crystals.however, for the catalysts prepared by CSI, Pd tends to migrate and exist below the surface layer of CuMoreover, even Pd loading is super low,<0.045 wt-% in this study, by through adjusting Cu loading to

Keywords： copper     palladium     catalysts     acetylene     selective hydrogenation    

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Sustainable H

Ruixue GU, Guangming ZENG, Jingjing SHAO, Yuan LIU, Johannes W. Schwank, Yongdan LI

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 3,   Pages 270-278 doi: 10.1007/s11705-013-1337-2

Abstract: A macro-meso-porous monolithic Ni-based catalyst was prepared via an impregnation route using polystyreneThe Ni/Mg-Al catalyst has a hierarchically macro-meso-porous structure as indicated by photographs andThe surface area of the catalyst was 230 m ?g and the Ni dispersion was 5.62%.Furthermore, the monolithic catalyst maintained excellent activity and H selectivity after 100-h on-stream

Keywords： macroporous Ni-based catalyst     monolith     hydrogen production     ethanol steam reforming    

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Mechanistic understanding of Cu-based bimetallic catalysts

You Han, Yulian Wang, Tengzhou Ma, Wei Li, Jinli Zhang, Minhua Zhang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 5,   Pages 689-748 doi: 10.1007/s11705-019-1902-4

Abstract: Herein, we reviewed two modification mechanisms of co-catalyst on the coordination environment changeof Cu-based catalysts: (1) change the electronic orbitals and geometric structure of Cu without anyinfluencing mechanisms of different types of auxiliary metals on the structure-activity relationship of Cu-basedmechanistic understanding can provide significant guidance for the design and controllable synthesis of novel Cu-based

Keywords： copper     bimetallic catalyst     coordination     modification mechanism     catalytic application    

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Simultaneous removal of NO and chlorobenzene on VO/TiO granular catalyst: Kinetic study and performance

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1363-5

Abstract:

• A V2O5/TiO2 granular catalyst for

Keywords： NOx     Chlorobenzene     Simultaneous removal     Kinetic study     Performance prediction     V<    

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Title Author Date Type Operation

Study on the hydrorefining of heavy oil from biomass alcoholysis in the presence of V-W-Mo-Cu catalyst

Zou Xianwu,Qin Tefu,Li Gaiyun and Huang Luohua

Journal Article

Investigation of the preparation methodologies of Pd-Cu single atom alloy catalysts for selective hydrogenation

Xinxiang Cao,Arash Mirjalili,James Wheeler,Wentao Xie,Ben W.-L. Jang

Journal Article

Reconstruction of Cu–ZnO catalyst by organic acid and deactivation mechanism in liquid-phase hydrogenation

Journal Article

Catalytic performance of Co-Mo-Ce-K/γ-Al

Yuqiong ZHAO, Yongfa ZHANG

Journal Article

Synthesis and High-Throughput Characterization of Microstructure and Phase Transformation in Ni–Ti–Cu–V

Naila M. Al Hasan, Huilong Hou, Suchismita Sarkar, Sigurd Thienhaus, Apurva Mehta, Alfred Ludwig, Ichiro Takeuchi

Journal Article

Effective regeneration of thermally deactivated commercial V-W-Ti catalysts

Xuesong SHANG, Jianrong LI, Xiaowei YU, Jinsheng CHEN, Chi HE

Journal Article

Efficient and selective electro-reduction of nitrobenzene by the nano-structured Cu catalyst prepared

Yali CHEN,Lu XIONG,Weikang WANG,Xing ZHANG,Hanqing YU

Journal Article

Preparation of Cu/ZnO/Al

Hui FAN, Huayan ZHENG, Zhong LI

Journal Article

Performance of a Hierarchically Nanostructured W–Cu Composite Produced via Mediating Phase Separation

Chao Hou, Hao Lu, Zhi Zhao, Xintao Huang, Tielong Han, Junhua Luan, Zengbao Jiao, Xiaoyan Song, Zuoren Nie

Journal Article

Promotional effect of ion-exchanged K on the low-temperature hydrothermal stability of Cu/SAPO-34 and

Chen Wang, Jun Wang, Jianqiang Wang, Meiqing Shen

Journal Article

NO hydrogenation to NH over FeCu/TiO catalyst with improved activity

Journal Article

Preparation and investigation of Pd doped Cu catalysts for selective hydrogenation of acetylene

Xinxiang Cao, Tengteng Lyu, Wentao Xie, Arash Mirjalili, Adelaide Bradicich, Ricky Huitema, Ben W.

Journal Article

Sustainable H

Ruixue GU, Guangming ZENG, Jingjing SHAO, Yuan LIU, Johannes W. Schwank, Yongdan LI

Journal Article

Mechanistic understanding of Cu-based bimetallic catalysts

You Han, Yulian Wang, Tengzhou Ma, Wei Li, Jinli Zhang, Minhua Zhang

Journal Article

Simultaneous removal of NO and chlorobenzene on VO/TiO granular catalyst: Kinetic study and performance

Journal Article