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Development of an H reduction and moderate oxidation method for 3,5-dimethylpyridine hydrogenation in

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1807-1817 doi: 10.1007/s11705-022-2243-2

Abstract: Under the same reduction conditions (300 °C in H2), the catalytic activity of the non-in-situTherefore, an in-situ H2 reduction and moderate oxidation method was developed to increase H2 reduction and moderate oxidation (oxidized at 100 °C).The developed in-situ H2 reduction and moderate oxidation method eliminated the stepof the non-in-situ reduction of catalyst outside the trickle bed reactor.

Keywords： Ru/C catalyst     in-situ H2 reduction and moderate oxidation     in-situ reduction     non-in-situ reduction     hydrogenation of 3     5-dimethylpyridine    

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Investigate of in situ sludge reduction in sequencing batch biofilm reactor: Performances, mechanisms

Yonglei Wang, Baozhen Liu, Kefeng Zhang, Yongjian Liu, Xuexin Xu, Junqi Jia

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 5, doi: 10.1007/s11783-018-1077-0

Abstract: listitem>

Microbial metabolism uncoupling, sludge decay is the main mechanism to promote in situsludge reduction on this biofilm system.

The main reduction mechanism inside the biofilm

Keywords： In situ sludge reduction     Biofilm     Composite floating spherical carriers     Microbial community     SBBR    

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In situ DRIFTS study of photocatalytic CO 2 reduction under UV irradiation

Jeffrey C. S. WU, Chao-Wei HUANG,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 2,   Pages 120-126 doi: 10.1007/s11705-009-0232-3

Abstract: Photocatalytic reduction of CO on TiO and Cu/TiO photocatalysts was studied by in situ diffuse reflectanceof reaction intermediates were found on the IR spectra, which were due to the slow photocatalytic CO reductionsignificantly increases the amount of formaldehyde and dioxymethylene, thus promotes the photoactivity of CO reductionA possible mechanism of the photocatalytic CO reduction is proposed based on these intermediates and

Keywords： irradiation     oxygen-vacancy     Photocatalytic reduction     Carbonate     butoxide    

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NOx removal by non-thermal plasma reduction: experimental and theoretical investigations

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 10,   Pages 1476-1484 doi: 10.1007/s11705-022-2165-z

Abstract: ">Ox removal via non-thermalplasma (NTP) reduction is one of such technique./mml:mi>x removal via NTP reductionmi>3 is favorable for the reductionmml:msup>, etc.) generated in the NTPRD process play important roles for the reduction

Keywords： ${\rm{NO}}_x $ removal     NTP reduction     mechanism     energy consumption    

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In situ electron-induced reduction of NO

Weixuan Zhao, Liping Lian, Xingpeng Jin, Renxi Zhang, Gang Luo, Huiqi Hou, Shanping Chen, Ruina Zhang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 2, doi: 10.1007/s11783-019-1199-z

Abstract: • An in situ electron-induced deNOx process with CNT activated by DBD was achieved. • Carbon atomsIn this study, a new in situ electron-induced process is presented with carbon nanotubes (CNTs) as areduction agent activated by dielectric barrier discharge (DBD) for nitrogen oxide (NOx) abatement atwere utilized to investigate surface changes in the CNTs after activation by DBD to explore the NOx reductionThe new deNOx process was accomplished through in situ heterogenetic reduction reactions between the
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Nitrous oxide formation and emission in selective non-catalytic reduction process

YANG Weijuan, ZHOU Junhu, ZHOU Zhijun, CEN Kefa

Frontiers in Energy 2007, Volume 1, Issue 2,   Pages 228-232 doi: 10.1007/s11708-007-0031-9

Abstract: But selective non-catalytic reduction may produce NO by NO reduction reactions.
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Thermodynamic analysis of liquid phase in situ hydrogenation of glycerol for 1,3-propanediol synthesis

Kun OUYANG, Yu HUANG, Haoyi CHEN, Tao LI, Fahai CAO, Dingye FANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 67-73 doi: 10.1007/s11705-010-0541-6

Abstract: reforming (APR) and catalytic hydrogenation of glycerol, a novel reaction system of liquid phase in situreforming reaction; the hydrogen generated from the APR of glycerol can be quickly transformed to the in situ

Keywords： glycerol     aqueous-phase reforming     1     3-propanediol     in-situ reduction    

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Noise reduction for centrifugal fan with non-isometric forward-swept blade impeller

MA Jianfeng, QI Datong, MAO Yijun

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 433-437 doi: 10.1007/s11708-008-0082-6

Abstract: The test results are discussed in detail and the effect of the noise reduction method for a centrifugalfan using impellers with non-isometric forward-swept blades was analyzed, which can serve as a referencefor researches on reduction of fan noise.

Keywords： different     reference     aerodynamic performance     centrifugal     impeller    

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Pollutant reduction effectiveness of low-impact development drainage system in a campus

Shuhan Zhang, Yingying Meng, Jiao Pan, Jiangang Chen

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 4, doi: 10.1007/s11783-017-0969-8

Abstract: Furthermore, the runoff reduction effects of single LID measure, such as green roof, filtration chamberAdditionally, the overall reduction effectiveness of the LID system on the average annual rainfall runoffThe non-point-source pollution reduction effects of the LID system are obvious because the pollutants

Keywords： Low-impact development     Rainwater harvesting     Non-point-source pollution reduction     Campus    

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REDUCTION OF NON-POINT SOURCE POLLUTION IN THE YONG’AN RIVER BY CONSTRUCTED WETLAND BASED ON 9 YEARS

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4,   Pages 627-638 doi: 10.15302/J-FASE-2023516

Abstract: The agricultural and livestock activities surrounding the rivers flowing into the lakes have caused non-point

Keywords： inflowing rivers     surface-flow constructed wetland     nutrients     long-term monitoring    

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Development and application of ex-situ presulfurization technology for hydrotreating catalysts in China

Yulan GAO, Xiangchen FANG, Zhenmin CHENG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 287-296 doi: 10.1007/s11705-010-0529-2

Abstract: The development and application of ex-situ presulfurization (EPRES) technology for hydrotreating catalysts

Keywords： ex-situ presulfurization     in situ presulfurization     hydrotreating catalyst     sulfur utilization ratio    

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Polyolefin-nanocomposites with special properties by in-situ polymerization

Walter Kaminsky

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3,   Pages 555-563 doi: 10.1007/s11705-018-1715-x

Abstract:

Exceptionally strong polyolefin nanocomposites are synthesized by in-situ polymerization using

Keywords： polyolefin nanocomposites     metallocenes     methylaluminoxane    

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Conversion Mechanism of Biomass to Nano Zero-Valent Iron Biochar: Iron Phase Transfer and In situ Reduction Article

Shengnan Zhuo, Hongyu Ren, Guojun Xie, Defeng Xing, Bingfeng Liu

Engineering 2023, Volume 21, Issue 2,   Pages 124-134 doi: 10.1016/j.eng.2021.07.012

Abstract:

Nano zero-valent iron biochar (nZVI–BC), an environmentally-friendly functional material prepared from waste biomass, has attracted extensive attention. This material has potential to solve the problem of biomass conversion. However, the lack of a method of converting biomass to the nZVI–BC involved in biomass modification and pyrolysis hinders its further production and application. In this study, we introduced the green solvent polyethylene glycol 400 (PEG400) to a biomass (rice straw, RS) modification system with FeCl3·6H2O, and activated RS was prepared to nZVI–BC by one-step pyrolysis. The addition of PEG400 promoted the hydrolysis of iron ion and improved the RS surface structure, promoting the attachment of Fe2O3 to the RS surface. The mild activation conditions with temperatures of 60, 80, 100 °C and a time of 0.5 h prevented the excessive loss of the lignin component and were conducive to the formation of carbon skeletons. Amorphous carbon and Fe2O3 were subjected to redox reactions to form nZVI–BC with the assistance of reducing gas produced from pyrolysis. In addition, the prepared nZVI–BC was tested for dye (Congo red) removal, showing rapid absorption (70.6% at 5 min) and high catalysis in advanced oxidation (75.67% at 5 min, 90% at 60 min). This work proposed a novel mechanistic strategy for preparing nZVI–BC and set a foundation for its scaled production and application.

Keywords： Conversion mechanism     Biomass modification     nZVI-biochar preparation     In situ pyrolysis     Iron    

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Propagation characteristics of transient waves in low-strain integrity testing on cast-in-situ concrete

Hanlong LIU, Xuanming DING

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 240-240 doi: 10.1007/s11709-009-0100-8

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In situ-based assessment of soil liquefaction potential–Case study of an earth dam in Tunisia

Ikram GUETTAYA,Mohamed Ridha EL OUNI

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4,   Pages 456-461 doi: 10.1007/s11709-014-0259-5

Abstract: The present paper examines the evaluation of liquefaction potential of an earth dam foundation in Tunisia. The assessment of soil liquefaction was made using deterministic and probabilistic simplified procedures developed from several case histories. The data collected from the field investigation performed before and after the vibrocompaction are analyzed and the results are reported. The obtained results show that after vibrocompaction, a significant improvement of the soil resistance reduces the liquefaction potential of the sandy foundation. Indeed, in the untreated layers, the factor of safety drops below 1 which means that the soil is susceptible for liquefaction. However, in the compacted horizons, the values of exceed the unit which justifies the absence of liquefaction hazard of the foundation.

Keywords： liquefaction     cone penetration test (CPT)     standard penetration test (SPT)     vibrcompaction     sand    

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Title Author Date Type Operation

Development of an H reduction and moderate oxidation method for 3,5-dimethylpyridine hydrogenation in

Journal Article

Investigate of in situ sludge reduction in sequencing batch biofilm reactor: Performances, mechanisms

Yonglei Wang, Baozhen Liu, Kefeng Zhang, Yongjian Liu, Xuexin Xu, Junqi Jia

Journal Article

In situ DRIFTS study of photocatalytic CO 2 reduction under UV irradiation

Jeffrey C. S. WU, Chao-Wei HUANG,

Journal Article

NOx removal by non-thermal plasma reduction: experimental and theoretical investigations

Journal Article

In situ electron-induced reduction of NO

Weixuan Zhao, Liping Lian, Xingpeng Jin, Renxi Zhang, Gang Luo, Huiqi Hou, Shanping Chen, Ruina Zhang

Journal Article

Nitrous oxide formation and emission in selective non-catalytic reduction process

YANG Weijuan, ZHOU Junhu, ZHOU Zhijun, CEN Kefa

Journal Article

Thermodynamic analysis of liquid phase in situ hydrogenation of glycerol for 1,3-propanediol synthesis

Kun OUYANG, Yu HUANG, Haoyi CHEN, Tao LI, Fahai CAO, Dingye FANG

Journal Article

Noise reduction for centrifugal fan with non-isometric forward-swept blade impeller

MA Jianfeng, QI Datong, MAO Yijun

Journal Article

Pollutant reduction effectiveness of low-impact development drainage system in a campus

Shuhan Zhang, Yingying Meng, Jiao Pan, Jiangang Chen

Journal Article

REDUCTION OF NON-POINT SOURCE POLLUTION IN THE YONG’AN RIVER BY CONSTRUCTED WETLAND BASED ON 9 YEARS

Journal Article

Development and application of ex-situ presulfurization technology for hydrotreating catalysts in China

Yulan GAO, Xiangchen FANG, Zhenmin CHENG

Journal Article

Polyolefin-nanocomposites with special properties by in-situ polymerization

Walter Kaminsky

Journal Article

Conversion Mechanism of Biomass to Nano Zero-Valent Iron Biochar: Iron Phase Transfer and In situ Reduction

Shengnan Zhuo, Hongyu Ren, Guojun Xie, Defeng Xing, Bingfeng Liu

Journal Article

Propagation characteristics of transient waves in low-strain integrity testing on cast-in-situ concrete

Hanlong LIU, Xuanming DING

Journal Article

In situ-based assessment of soil liquefaction potential–Case study of an earth dam in Tunisia

Ikram GUETTAYA,Mohamed Ridha EL OUNI

Journal Article