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Reduction kinetics of SrFeO/CaO∙MnO nanocomposite as effective oxygen carrier for chemical looping partial

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1726-1734 doi: 10.1007/s11705-022-2188-5

Abstract: Chemical looping reforming of methane is a novel and effective approach to convert methane to syngas,have been made to develop high-performance redox materials, a few studies have focused on the redox kineticsIn this work, the kinetics of SrFeO3−δ–CaO∙MnO nanocomposite reduction by methane wasThe proposed rate law could well predict the reduction kinetics; thus, it may be used to design and/oranalyze a chemical looping reforming reactor.

Keywords： chemical looping reforming     SrFeO3−δ/CaO·MnO nanocomposite     reduction kinetics     Avrami–Erofeyev    

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Performance and kinetics of iron-based oxygen carriers reduced by carbon monoxide for chemical looping

Xiuning HUA,Wei WANG,Feng WANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 1130-1138 doi: 10.1007/s11783-015-0821-y

Abstract: Chemical looping combustion is a promising technology for energy conversion due to its low-carbon, high-efficiencyThe mechanism and kinetics of CO reduction on iron-based oxygen carriers namely pure Fe O and Fe OThe boosting recital of iron-based oxygen carrier support toward efficient chemical looping combustion

Keywords： chemical looping combustion     iron-based oxygen carriers     reduction kinetics     carbon monoxide     statistics    

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chlorinated aromatics' structure on their adsorption characteristics on activated carbon to tackle chemical

Pengfei LIN,Yuan ZHANG,Xiaojian ZHANG,Chao CHEN,Yuefeng XIE,Irwin H SUFFET

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 1,   Pages 138-146 doi: 10.1007/s11783-014-0725-2

Abstract: The adsorption kinetics and PAC’s capacities for five chlorobenzenes and three chlorophenols at drinkingThe adsorption kinetics took 30 min to achieve nearly equilibrium and could be described by both pseudo

Keywords： chlorinated aromatics     adsorption     powdered activated carbon     kinetics     equilibrium    

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Theoretical insights into influence of additives on sulfamethoxazole crystal growth kinetics and mechanisms

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1503-1515 doi: 10.1007/s11705-022-2294-4

Abstract: In this work, the influence of the initial chemical potential gradient, stirring speed, and polymer typeon sulfamethoxazole (SMX) crystal growth kinetics was systematically investigated through density functionaltheory (DFT) calculations, experimental measurements and the two-step chemical potential gradient modeleffect of the polymer on the crystal growth mechanisms of SMX was further analyzed by the two-step chemical

Keywords： insoluble drugs     polymer     inhibition crystallization     crystal growth kinetics     DFT calculations    

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Combustion characteristics and kinetics of bio-oil

Ruixia ZHANG, Zhaoping ZHONG, Yaji HUANG

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 119-124 doi: 10.1007/s11705-009-0068-x

Abstract: characteristics of different kinds of bio-oils in different atmospheres and worked out the combustion kinetics

Keywords： bio-oil     combustion characteristics     combustion kinetics    

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Thermal degradation kinetics and lifetime estimation for polycarbonate/polymethylphenylsilsesquioxane

Jiangbo WANG, Zhong XIN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 167-171 doi: 10.1007/s11705-009-0006-y

Abstract: The isothermal kinetics equation was used to describe the thermal degradation process.

Keywords： polycarbonate     polymethylphenylsilsesquioxane     thermal degradation kinetics     activation energy     lifetime    

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Modeling the aqueous reaction kinetics of estriol with ferrate

Cong LI, Naiyun GAO

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1,   Pages 39-45 doi: 10.1007/s11705-009-0098-4

Abstract: In this study the aqueous oxidation kinetics of estriol (E3) by potassium ferrate (K FeO ), a chemicalThis paper describes a theoretical representation that closely models the reaction kinetics of E3 and

Keywords： ferrate     estriol     endocrine disruptor     kinetics     oxidation    

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Influence of extracellular polymeric substances from activated sludge on the aggregation kinetics of

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1450-2

Abstract:

• The NPs aggregation in the electrolyte solution is consistent with the DLVO theory.

Keywords： Silver nanoparticles     Silver sulfide nanoparticles     Extracellular polymeric substances     Aggregation kinetics    

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Preparation and crystallization kinetics of micron-sized Mg(OH)

Xingfu SONG, Kefeng TONG, Shuying SUN, Ze SUN, Jianguo YU

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 2,   Pages 130-138 doi: 10.1007/s11705-013-1332-7

Abstract: Magnesium hydroxide is an important chemical, and is usually obtained from seawater or brine via precipitationFurthermore, the crystallization kinetics based on the population balance theory was studied to provide

Keywords： magnesium hydroxide     precipitation     micron-sized     crystallization kinetics    

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Intrinsic kinetics and external diffusion of catalytic steam gasification of fine coal char particles

Xuantao Wu, Jie Wang

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 2,   Pages 415-426 doi: 10.1007/s11705-018-1725-8

Abstract: coal char particles was carried out using a self-made laboratory reactor to determine the intrinsic kineticsAn intrinsic kinetics/external diffusion integrating model could well describe the gasification rate

Keywords： coal char     catalytic steam gasification     pressure     kinetics     diffusion    

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Determination of growth kinetics of microorganisms linked with 1,4-dioxane degradation in a consortium

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 5, doi: 10.1007/s11783-022-1567-y

Abstract:

● Evaluated three methods for determining the consortia’s growth kinetics

Keywords： Biodegradation     1     4-Dioxane     Kinetics     Microbial consortium     16S rRNA    

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Removal of Rhodamine B from aqueous solutions and wastewater by walnut shells: kinetics, equilibrium

Jasmin Shah, M. Rasul Jan, Attaul Haq, Younas Khan

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 428-436 doi: 10.1007/s11705-013-1358-x

Abstract: An adsorption study of Rhodamine B (RB) dye from aqueous solutions was carried out using walnut shells pretreated by different methods. In addition to the effects of the pretreatment, the effects of various parameters like pH, adsorbent dose, contact time, initial dye concentration and temperature on the adsorption of RB was studied. The adsorption process was highly pH dependent and a maximum adsorption was achieved at pH 3.0. The best fit for the rates of dye adsorption was a pseudo-second-order kinetic model with good correlation coefficients ( >0.99). Langmuir isotherms were used to determine that the maximum loading capacity of the different walnut shells and the RB capacities ranged from 1.451–2.292 mg·g . The dye adsorption was also evaluated thermodynamically. Positive standard enthalpy (? °) values were obtained indicating that the RB adsorption process is endothermic as well as ? ° and ? ° values showed that adsorption process is spontaneous with an increased randomness at the solid-liquid interface. Desorption studies were carried out to explore the feasibility of regenerating the used walnut shells and it was found that 97.71%–99.17% of the retained RB was recovered with 0.1 mol?L NaOH solution. The walnut shells were also successfully used to remove RB from industrial effluents.

Keywords： Rhodamine B     walnut shell adsorption     kinetics     isotherms     regeneration    

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Ozone kinetics of dimethyl sulfide in the presence of water vapor

Haitao WANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 6,   Pages 833-835 doi: 10.1007/s11783-013-0570-8

Abstract: The outdoor smog chamber was used to thorough investigate the rate constants of gas-phase reaction between dimethyl sulfide (DMS) and ozone (O ) under conditions of relative humidity 55.0%–67.8% at (296±2)K for the first time. The rate constants were measured, at a total pressure of 1 atm, to be (10.4±0.2) × 10 cm ·molecule ·s at relative humidity of 67.5%±0.3% at 298K, (10.1±0.1) × 10 cm ·molecule ·s at relative humidity of 66.5%±0.5% at 296K, (7.75±0.39) × 10 cm ·molecule ·s at relative humidity of 64.8%±0.1% at 294K and (3.42±0.21) × 10 cm ·molecule ·s at relative humidity of 55.8%±0.8% at 295K. Base on these results, it is possible to see the reaction of O /DMS in the presence of water vapor as an important sink for DMS in the earth atmosphere.

Keywords： rate constants     ozone (O3)     dimethyl sulfide (DMS)     water vapor    

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Numerical investigation of the influence of kinetics and shape factor on barium sulfate precipitation

Zheng WANG, Zai-Sha MAO, Chao YANG, Qinghua ZHANG, Jingcai CHENG

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 3,   Pages 272-281 doi: 10.1007/s11705-009-0023-x

Abstract: The effect of kinetics and shape factor on barium sulfate precipitation in a continuous stirred tank

Keywords： stirred tank     numerical simulation     precipitation     shape factor     crystal kinetics    

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Microalgal bioremediation of food-processing industrial wastewater under mixotrophic conditions: Kinetics

Suvidha Gupta,R. A. Pandey,Sanjay B. Pawar

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 4,   Pages 499-508 doi: 10.1007/s11705-016-1602-2

Abstract: The aim of the study is to find out the utilization rates of total organic carbon (TOC) and chemicalThe degradation kinetics also suggests that the microalgae cultivation on a high COD wastewater is feasible

Keywords： total organic carbon     wastewater bioremediation     kinetics     mixotrophic cultivation    

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Title Author Date Type Operation

Reduction kinetics of SrFeO/CaO∙MnO nanocomposite as effective oxygen carrier for chemical looping partial

Journal Article

Performance and kinetics of iron-based oxygen carriers reduced by carbon monoxide for chemical looping

Xiuning HUA,Wei WANG,Feng WANG

Journal Article

chlorinated aromatics' structure on their adsorption characteristics on activated carbon to tackle chemical

Pengfei LIN,Yuan ZHANG,Xiaojian ZHANG,Chao CHEN,Yuefeng XIE,Irwin H SUFFET

Journal Article

Theoretical insights into influence of additives on sulfamethoxazole crystal growth kinetics and mechanisms

Journal Article

Combustion characteristics and kinetics of bio-oil

Ruixia ZHANG, Zhaoping ZHONG, Yaji HUANG

Journal Article

Thermal degradation kinetics and lifetime estimation for polycarbonate/polymethylphenylsilsesquioxane

Jiangbo WANG, Zhong XIN

Journal Article

Modeling the aqueous reaction kinetics of estriol with ferrate

Cong LI, Naiyun GAO

Journal Article

Influence of extracellular polymeric substances from activated sludge on the aggregation kinetics of

Journal Article

Preparation and crystallization kinetics of micron-sized Mg(OH)

Xingfu SONG, Kefeng TONG, Shuying SUN, Ze SUN, Jianguo YU

Journal Article

Intrinsic kinetics and external diffusion of catalytic steam gasification of fine coal char particles

Xuantao Wu, Jie Wang

Journal Article

Determination of growth kinetics of microorganisms linked with 1,4-dioxane degradation in a consortium

Journal Article

Removal of Rhodamine B from aqueous solutions and wastewater by walnut shells: kinetics, equilibrium

Jasmin Shah, M. Rasul Jan, Attaul Haq, Younas Khan

Journal Article

Ozone kinetics of dimethyl sulfide in the presence of water vapor

Haitao WANG

Journal Article

Numerical investigation of the influence of kinetics and shape factor on barium sulfate precipitation

Zheng WANG, Zai-Sha MAO, Chao YANG, Qinghua ZHANG, Jingcai CHENG

Journal Article

Microalgal bioremediation of food-processing industrial wastewater under mixotrophic conditions: Kinetics

Suvidha Gupta,R. A. Pandey,Sanjay B. Pawar

Journal Article