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Continuous deacylation of amides in a high-temperature and high-pressure microreactor

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1818-1825 doi: 10.1007/s11705-022-2182-y

Abstract: The deacylation of amides, which is widely employed in the pharmaceutical industry, is not a fast reactionTo intensify this reaction, a high-temperature and high-pressure continuous microreaction technologyUsing the deacylation of acetanilide as a model reaction, the effects of the temperature, pressure, reactionBased on the rapid heating and cooling capabilities, the kinetics of acetanilide deacylation at highof other amides to understand the influence of substituents and steric hindrance on the deacylation reaction

Keywords： amide deacylation     microreactor     flow chemistry     reaction intensification    

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Surface-Driven High-Pressure Processing Perspective

Keith E. Gubbins, Kai Gu, Liangliang Huang, Yun Long, J. Matthew Mansell, Erik E. Santiso, Kaihang Shi, Małgorzata Ś liwińska-Bartkowiak, Deepti Srivastava

Engineering 2018, Volume 4, Issue 3,   Pages 311-320 doi: 10.1016/j.eng.2018.05.004

Abstract:

The application of high pressure favors many chemical processes, providing higher yields or improvedOn the industrial scale, however, high-pressure processing is currently limited by the cost of compressionAn alternative approach to high-pressure processing is proposed here, in which very high local pressuresSince the active high-pressure processing zone is inhomogeneous, the pressure is different in differentto high-pressure processing based on surface-driven forces is discussed.

Keywords： Confinement     High pressure     High pressure phase     High pressure reaction     High pressure manufacture     High pressure    

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A novel high-temperature and high-pressure hydraulic pump based on mononeuron control

Linhui ZHAO, Xin FANG

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2,   Pages 219-223 doi: 10.1007/s11465-009-0024-y

Abstract: Based on structures and characteristics of traditional hydraulic pumps, this paper proposes a novel high-temperatureand high-pressure hydraulic pump (HHHP) that can work under 150°C and 28 MPa to overcome problems oftraditional high-temperature plunger pumps.Therefore, reduced fluctuations and stable pressure output is obtained.

Keywords： mononeuron PID control     hydraulic pump     pressure fluctuation    

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Assessment and validation of liquid breakup models for high-pressure dense diesel sprays

Yi REN,Xianguo LI

Frontiers in Energy 2016, Volume 10, Issue 2,   Pages 164-175 doi: 10.1007/s11708-016-0407-9

Abstract: In this paper, different models for liquid breakup processes in high-pressure dense diesel sprays andRayleigh-Taylor (RT) breakup model gives the most reasonable predicted results in both engine simulation and high-pressureTAB) based models and the RT model do not provide reasonable predictions for the characteristics of high-pressure

Keywords： breakup model     diesel engine     high-pressure injection     simulations    

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Effect of pressure on gasification reactivity of three Chinese coals with different ranks

Chunyu LI, Jiantao ZHAO, Yitian FANG, Yang WANG

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 385-393 doi: 10.1007/s11705-010-0501-1

Abstract: Results show that the char gasification reactivity increases with increasing partial pressure.The gasification reaction is controlled by pore diffusion, the rate decreases with increasing total systempressure, and under chemical kinetic control there is no pressure dependence.The values of reaction order with steam were 0.49, 0.46, 0.43, respectively.Meanwhile, the values of reaction order with CO were 0.31, 0.28, 0.26, respectively.

Keywords： coal     gasification     pressure     reaction order     shrinking core model    

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Experiments on the effect of the pressure on the mineral transformation of coal ash under the differentreaction atmosphere

Nijie JING, Qinhui WANG, Zhongyang LUO, Tao JIE, Xiaomin LI, Kefa CEN

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 394-399 doi: 10.1007/s11705-010-0505-x

Abstract: This paper investigated the effect of the pressures, reaction atmospheres and coal ash species on theash fusibility with high-pressure thermogravimetric analysis (PTGA) apparatus and X-ray diffractionMany low-temperature minerals are still present under the elevated pressure.The different reaction atmospheres have different effects on the formation of coal ash minerals.And later, it transforms into sanidine at high pressure; thus, the melting temperature of coal ash may

Keywords： ash fusibility     XRD analysis     PTGA     low-temperature eutectic    

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Confining pressure effect on dynamic response of high rockfill dam

Xuexing CAO, Yunlong HE, Kun XIONG,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1,   Pages 116-126 doi: 10.1007/s11709-010-0014-5

Abstract: Studies show that the dynamic properties of rockfill are strongly dependent on the confining pressureTherefore, confining pressure effect has become a very important factor in the seismic analysis of highThen a new model that could consider confining pressure effect has been established.model, it can be seen that the result is conservative to some extent without considering confining pressure

Keywords： confining pressure effect     high rockfill dam     dynamic response     Hardin-Drnevich constitutive model    

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Terahertz time-domain spectroscopy of high-pressure flames

Jason BASSI, Mark STRINGER, Bob MILES, Yang ZHANG

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 123-133 doi: 10.1007/s11708-009-0033-x

Abstract: infrared is widely used as a diagnostic tool for combustion devices, but this approach is difficult at highHigh soot concentrations render flames opaque to visible light, but they remain transparent to far-infraredfirst far-infrared absorption spectra, to the best of our knowledge, of sooty, non-premixed, ethylene high-pressureA specially designed high-pressure burner which is optically accessible to THz radiation has been built

Keywords： terahertz time-domain spectroscopy     high-pressure flames     H2O absorption lines    

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vapor deposition of excellent a-Si:H passivation layers for a-Si:H/c-Si heterojunction solar cells at highpressure and high power

Lei ZHAO,Wenbin ZHANG,Jingwei CHEN,Hongwei DIAO,Qi WANG,Wenjing WANG

Frontiers in Energy 2017, Volume 11, Issue 1,   Pages 85-91 doi: 10.1007/s11708-016-0437-3

Abstract: However, at the low deposition pressure and low deposition power, such an a-Si:H layer can be only preparedthis paper, intrinsic a-Si:H layers were prepared on n-type Cz c-Si substrates by 27.12 MHz PECVD at a highdeposition pressure and high deposition power.It was found that an excellent a-Si:H passivation layer could be obtained in a very wide deposition pressure

Keywords： PECVD     high pressure and high power     a-Si:H microstructure     passivation     heterojunction solar cell    

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Erratum to: Polypyrrole@NiCo hybrid nanotube arrays as high performance electrocatalyst for hydrogenevolution reaction in alkaline solution

Shenghua Ye, Gaoren Li

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4,   Pages 845-845 doi: 10.1007/s11705-019-1879-z

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Spray characteristics of high-pressure swirl injector fueled with alcohol

WANG Xibin, CHEN Wansheng, GAO Jian, JIANG Deming, HUANG Zuohua

Frontiers in Energy 2007, Volume 1, Issue 1,   Pages 105-112 doi: 10.1007/s11708-007-0012-z

Abstract: The spray characteristics of methanol and ethanol with high-pressure swirl injector were explored experimentallyback-pressure.conditions while the vortexes formed in the middle part under high back-pressure ambient conditions., but displayed a slightly larger value under high back-pressure due to fuel evaporation.Numerical simulation could successfully demonstrate the spray characteristics of high-pressure swirl

Keywords： low back-pressure     diameter     initial spray     hollow     middle    

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Technology of strengthening soil and keeping pressure of large diameter slurry shield inside with highpressure

Meng Haifeng,Su Qinggui,Zhai Zhiguo

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 70-74

Abstract: Based on the engineering example of underground diameter project replacing the cutter teeth inside with highpressure, the application of grouting reinforcement and pile foundation reinforcement in soil strengtheningThe causes of gas leakage of inside with high pressure were analyzed, and the countermeasures were proposed

Keywords： shield     inside with high pressure     keep pressure     grouting    

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Wind tunnel test study on the wind pressure coefficient of claddings of high-rise buildings

Yong QUAN, Yi LIANG, Fei WANG, Ming GU

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 4,   Pages 518-524 doi: 10.1007/s11709-011-0128-4

Abstract: The area-averaged most unfavorable wind pressure coefficients (MUWPCs) on various regions of buildingratio and the terrain category were studied based on wind tunnel test data of scale models of typical high-rise

Keywords： side ratio     area-averaged pressure coefficients     cladding     terrain category    

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Polypyrrole@NiCo hybrid nanotube arrays as high performance electrocatalyst for hydrogen evolution reaction

Shenghua Ye, Gaoren Li

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3,   Pages 473-480 doi: 10.1007/s11705-018-1724-9

Abstract:

The polypyrrole(PPy)@NiCo hybrid nanotube arrays have been successfully fabricated as a high performanceelectrocatalyst for hydrogen evolution reaction (HER) in alkaline solution.The PPy@NiCo hybrid nanotubes also exhibit high catalytic activity and high stability for HER.

Keywords： NiCo alloy     polypyrrole     hybrid nanotube     electrocatalyst     hydrogen evolution reaction    

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Numerical simulation of air flow field in high-pressure fan with splitter blades

LI Jianfeng, LU Junfu, ZHANG Hai, LIU Qing, YUE Guangxi

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 438-442 doi: 10.1007/s11708-008-0085-3

Abstract: For a deeper understanding of the flow characteristics in the high-pressure centrifugal blower of a fanwith the presence of splitter blades, the air flow rate of the fan increased about 5% and the total pressureIt was also found that the length of the splitter blades affected the air flow and pressure drop.

Keywords： splitter     numerical simulation     presence     unstructured     operational    

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Title Author Date Type Operation

Continuous deacylation of amides in a high-temperature and high-pressure microreactor

Journal Article

Surface-Driven High-Pressure Processing

Keith E. Gubbins, Kai Gu, Liangliang Huang, Yun Long, J. Matthew Mansell, Erik E. Santiso, Kaihang Shi, Małgorzata Ś liwińska-Bartkowiak, Deepti Srivastava

Journal Article

A novel high-temperature and high-pressure hydraulic pump based on mononeuron control

Linhui ZHAO, Xin FANG

Journal Article

Assessment and validation of liquid breakup models for high-pressure dense diesel sprays

Yi REN,Xianguo LI

Journal Article

Effect of pressure on gasification reactivity of three Chinese coals with different ranks

Chunyu LI, Jiantao ZHAO, Yitian FANG, Yang WANG

Journal Article

Experiments on the effect of the pressure on the mineral transformation of coal ash under the differentreaction atmosphere

Nijie JING, Qinhui WANG, Zhongyang LUO, Tao JIE, Xiaomin LI, Kefa CEN

Journal Article

Confining pressure effect on dynamic response of high rockfill dam

Xuexing CAO, Yunlong HE, Kun XIONG,

Journal Article

Terahertz time-domain spectroscopy of high-pressure flames

Jason BASSI, Mark STRINGER, Bob MILES, Yang ZHANG

Journal Article

vapor deposition of excellent a-Si:H passivation layers for a-Si:H/c-Si heterojunction solar cells at highpressure and high power

Lei ZHAO,Wenbin ZHANG,Jingwei CHEN,Hongwei DIAO,Qi WANG,Wenjing WANG

Journal Article

Erratum to: Polypyrrole@NiCo hybrid nanotube arrays as high performance electrocatalyst for hydrogenevolution reaction in alkaline solution

Shenghua Ye, Gaoren Li

Journal Article

Spray characteristics of high-pressure swirl injector fueled with alcohol

WANG Xibin, CHEN Wansheng, GAO Jian, JIANG Deming, HUANG Zuohua

Journal Article

Technology of strengthening soil and keeping pressure of large diameter slurry shield inside with highpressure

Meng Haifeng,Su Qinggui,Zhai Zhiguo

Journal Article

Wind tunnel test study on the wind pressure coefficient of claddings of high-rise buildings

Yong QUAN, Yi LIANG, Fei WANG, Ming GU

Journal Article

Polypyrrole@NiCo hybrid nanotube arrays as high performance electrocatalyst for hydrogen evolution reaction

Shenghua Ye, Gaoren Li

Journal Article

Numerical simulation of air flow field in high-pressure fan with splitter blades

LI Jianfeng, LU Junfu, ZHANG Hai, LIU Qing, YUE Guangxi

Journal Article