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2-ethyl hexyl phosphonic acid-mono-2-ethyl hexyl ester 1

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Micro-sized hydrothermal carbon supporting metal oxide nanoparticles as efficient catalyst for mono-dehydration

Cheng PAN, Chao FAN, Wanqin WANG, Teng LONG, Benhua HUANG, Donghua ZHANG, Peigen SU, Aqun ZHENG, Yang SUN

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 822-839 doi: 10.1007/s11708-020-0677-0

Abstract: Moreover, both di- and mono-dehydration demand a high temperature (150°C or higher), which deserves furtherTo improve the mono-dehydration efficiency, a series of metal-containing hydrothermal carbonaceous materialsOn the other hand, high mono-dehydration selectivity is obtained for both sugar alcohols by using allThe origin of mono-dehydration selectivity and role of carbon component in catalysis are discussed inThis study provides an efficient, mild, eco-friendly, and cost-effective system for mono-dehydration

Keywords： hydrothermal carbon     morphology     catalyst     mono-dehydration     sugar alcohol    

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The dehydration behavior and non-isothermal dehydration kinetics of donepezil hydrochloride monohydrate

Tiantian LIU, Yuanyuan RAN, Bochao WANG, Weibing DONG, Songgu WU, Junbo GONG

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 1,   Pages 55-63 doi: 10.1007/s11705-013-1352-3

Abstract: Powders of donepezil hydrochloride monohydrate (Form I) underwent isomorphic dehydration, losing 3% wBelow 10% RH, additional dehydration occurred in conjunction with a reversible phase transition betweenForm I showed the characteristics of the channel hydrate, whose non-isothermal dehydration behavior proceedsThe dehydration kinetics was achieved from the TG-DTG curves by both the Achar method and the Coats-RedfernThe dynamic dehydration processes for steps 1 and 2 were best expressed by the Zhuralev-Lesokin-Tempelman

Keywords： dehydration     thermal analysis     transformation     dehydration kinetics    

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Investigations on dehydration processes of trisodium citrate hydrates

Junyan GAO, Yanlei WANG, Hongxun HAO

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 3,   Pages 276-281 doi: 10.1007/s11705-012-1206-4

Abstract: The dehydration processes of trisodium citrate (Na C H O ) hydrates were investigated using thermogravimetryIt was found that the temperature of dehydration of trisodium citrate dihydrate was at 430.99 K.For trisodium citrate pentahydrate, there is a two-step dehydration process and the endothermal peaksDuring the first step of dehydration process, the structure of trisodium citrate pentahydrate changeddehydration mechanisms of the two hydrates were different.

Keywords： trisodium citrate     dehydration     TG/DSC     PXRD    

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Effects of the SAPO-11 synthetic process on dehydration of ethanol to ethylene

Lina WU, Xiaoxing SHI, Qun CUI, Haiyan WANG, He HUANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 60-66 doi: 10.1007/s11705-010-0540-7

Abstract: The effects of the synthetic condition of SAPO-11 molecular sieves on ethanol dehydration to ethylene

Keywords： SAPO-11 molecular sieves     synthesis     ethanol     ethylene     dehydration    

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Dehydration of natural gas and biogas streams using solid desiccants: a review

Soheil Bahraminia, Mansoor Anbia, Esmat Koohsaryan

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1050-1074 doi: 10.1007/s11705-020-2025-7

Abstract: In this review paper, the main dehydration methods have been overviewed, and scrutiny of the adsorptiondehydration has been carried out.

Keywords： natural gas     biogas     dehydration     adsorption     solid desiccant    

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Study of zeolite membranes for pervaporation dehydration and their applications

Gu Xuehong,Xu Nanping

Strategic Study of CAE 2014, Volume 16, Issue 12,   Pages 52-58

Abstract:

A seeding method by rubbing-dipcoating and induction with ball-milled seeds was developed to synthesize NaA zeolite membrane. The synthesis approach could improve the rate of qualified membranes and reduce the synthesis time efficiently，which is suitable for large-scale production of zeolite membranes. Mass transfer mechanism of organic solvent and water in a zeolite membrane was investigated with molecular simulation method. The stability of NaA zeolite membranes in hydrothermal，acid-base and salty environments was systematically studied. A pretreatment method was then proposed and industrial pervaporation plants were built up，which have been operated steadily for long term.

Keywords： pervaporation     zeolite membrane     organic dehydration     industrial application    

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Defect passivation on cast-mono crystalline screen-printed cells

Alison WENHAM,Lihui SONG,Malcolm ABBOTT,Iskra ZAFIROVSKA,Sisi WANG,Brett HALLAM,Catherine CHAN,Allen BARNETT,Stuart WENHAM

Frontiers in Energy 2017, Volume 11, Issue 1,   Pages 60-66 doi: 10.1007/s11708-016-0443-5

Abstract: Cast-mono crystalline silicon wafers contain crystallographic defects, which can severely impact themoderate temperatures to finished screen print cells can passivate dislocation clusters within the cast-mono

Keywords： silicon solar cell     dislocation     cast-mono     laser     hydrogen passivation    

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Influencing mechanism of high solid concentration on anaerobic mono-digestion of sewage sludge without

Yuyao ZHANG,Huan LI,Can LIU,Yingchao CHENG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 1108-1116 doi: 10.1007/s11783-015-0806-x

Abstract: High-solids anaerobic digestion of sewage sludge was a promising process, but high solid concentration negatively influenced methane production. The influencing mechanism was systematically analyzed in this study through a series of static anaerobic digestion experiments at total solids (TS) contents of 3%–15%. The results showed that TS 6% was the boundary between low-solids and high-solids anaerobic digestion, and the accumulative methane yield decreased exponentially when TS increased from 6% to 15%. The performance of anaerobic digestion was directly determined by the efficiency of mass transfer, and the relation between methane yield and sludge diffusive coefficients was well described by a power function. Thus, the increasing TS resulted in an exponential increase in sludge viscosity but an exponential decrease in diffusive coefficient. The blocked mass transfer led to the accumulation of volatile fatty acids (VFAs) and free ammonia. Acetic metabolism was the main process, whereas butyric and propionic metabolisms occurred at the initial stage of high-solids anaerobic digestion. The concentration of VFAs reached the maximum at the initial stage, which were still lower than the threshold influencing methanogens. The concentration of free ammonia increased gradually, and the methanogenesis was inhibited when free ammonia nitrogen exceeded 50 mg·L . Consequently, the deterioration of high-solids anaerobic digestion was related to the blocked mass transfer and the resulting ammonia accumulation.

Keywords： anaerobic digestion     methane     sewage sludge     volatile fatty acids     free ammonia    

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Polymerization of methyl methacrylate catalyzed by mono-/bis-salicylaldiminato nickel(II) complexes and

Jihong LU, Danfeng ZHANG, Qian CHEN, Buwei YU

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 19-25 doi: 10.1007/s11705-010-0546-1

Abstract: Two types of salicylaldiminato-based nickel complexes, mono-ligated Ni(II) complexes ([O-C H - - C(H)salicylaldiminato framework possessed higher activities, while with the same salicylaldiminato, the mono-ligated

Keywords： late transition metal catalyst     methyl methacrylate     polymerization     salicylaldiminato nickel complexes     methylaluminoxane     syndiotactic structure    

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Synthesis of mono and bis-4-methylpiperidiniummethyl-urea as corrosion inhibitors for steel in acidic

Abbas TEIMOURI, Nasrin SOLTANI, Alireza Najafi CHERMAHINI

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 43-50 doi: 10.1007/s11705-010-0532-7

Abstract: Mono and bis-4-methylpiperidiniummethyl urea were synthesized, characterized and used as new corrosion

Keywords： corrosion inhibitors     mild steel     acidic medium     theoretical studies     DFT    

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nanoflower through protein-inorganic self-assembly, and its application in glycyrrhetinic acid 3-O-mono-β-D-glucuronide

Tian Jiang, Yuhui Hou, Tengjiang Zhang, Xudong Feng, Chun Li

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 554-562 doi: 10.1007/s11705-019-1834-z

Abstract: Glycyrrhetinic acid 3- -mono- -D-glucuronide (GAMG), an important pharmaceutical intermediate and functional

Keywords： glucuronidase     enzyme-inorganic hybrid nanoflower     biotransformation     glycyrrhizin     glycyrrtinic acid 3-O-mono    

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Control on self-assembly structures of rod-coil-rod (PANI)-(PEG)-(PANI) triblock copolymer

YANG Zhifang, WU Jingao, YANG Yingkui, ZHOU Xingping, XIE Xiaolin

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 85-88 doi: 10.1007/s11705-008-0003-6

Abstract: copolymer can form a multi-layer, tri-dimensional fibrous network and a petaline structure from the mono-layer

Keywords： different     multi-layer     mono-layer     dimethyl formamide     concentration    

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Modeling of Ce(IV) transport through a dispersion flat combined liquid membrane with carrier P507

Liang PEI,Liming WANG,Zhanying MA

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 503-509 doi: 10.1007/s11783-013-0540-1

Abstract: through dispersion flat combined liquid membrane (DFCLM) with contain 2-ethyl hexyl phosphonic acid-mono

Keywords： Dispersion flat combined liquid membrane (DFCLM)     dispersion phase     feed phase     2-ethyl hexyl phosphonic acid-mono    

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Title Author Date Type Operation

Micro-sized hydrothermal carbon supporting metal oxide nanoparticles as efficient catalyst for mono-dehydration

Cheng PAN, Chao FAN, Wanqin WANG, Teng LONG, Benhua HUANG, Donghua ZHANG, Peigen SU, Aqun ZHENG, Yang SUN

Journal Article

The dehydration behavior and non-isothermal dehydration kinetics of donepezil hydrochloride monohydrate

Tiantian LIU, Yuanyuan RAN, Bochao WANG, Weibing DONG, Songgu WU, Junbo GONG

Journal Article

Investigations on dehydration processes of trisodium citrate hydrates

Junyan GAO, Yanlei WANG, Hongxun HAO

Journal Article

Effects of the SAPO-11 synthetic process on dehydration of ethanol to ethylene

Lina WU, Xiaoxing SHI, Qun CUI, Haiyan WANG, He HUANG

Journal Article

Dehydration of natural gas and biogas streams using solid desiccants: a review

Soheil Bahraminia, Mansoor Anbia, Esmat Koohsaryan

Journal Article

Study of zeolite membranes for pervaporation dehydration and their applications

Gu Xuehong,Xu Nanping

Journal Article

Defect passivation on cast-mono crystalline screen-printed cells

Alison WENHAM,Lihui SONG,Malcolm ABBOTT,Iskra ZAFIROVSKA,Sisi WANG,Brett HALLAM,Catherine CHAN,Allen BARNETT,Stuart WENHAM

Journal Article

Influencing mechanism of high solid concentration on anaerobic mono-digestion of sewage sludge without

Yuyao ZHANG,Huan LI,Can LIU,Yingchao CHENG

Journal Article

Polymerization of methyl methacrylate catalyzed by mono-/bis-salicylaldiminato nickel(II) complexes and

Jihong LU, Danfeng ZHANG, Qian CHEN, Buwei YU

Journal Article

Synthesis of mono and bis-4-methylpiperidiniummethyl-urea as corrosion inhibitors for steel in acidic

Abbas TEIMOURI, Nasrin SOLTANI, Alireza Najafi CHERMAHINI

Journal Article

nanoflower through protein-inorganic self-assembly, and its application in glycyrrhetinic acid 3-O-mono-β-D-glucuronide

Tian Jiang, Yuhui Hou, Tengjiang Zhang, Xudong Feng, Chun Li

Journal Article

Control on self-assembly structures of rod-coil-rod (PANI)-(PEG)-(PANI) triblock copolymer

YANG Zhifang, WU Jingao, YANG Yingkui, ZHOU Xingping, XIE Xiaolin

Journal Article

Modeling of Ce(IV) transport through a dispersion flat combined liquid membrane with carrier P507

Liang PEI,Liming WANG,Zhanying MA

Journal Article