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中国化学工程学报（英文版）
中国化学工程学报（英文版）

廖叶华

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1004-9541

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010-64980783

100011

北京东城区青年湖南街13号

中国化学工程学报（英文版）/Journal Chinese Journal of Chemical EngineeringCSCDCSTPCD北大核心EISCI
查看更多>>The Chinese Journal of Chemical Engineering (Bimonthly, started in 1982) is the official journal of the Chemical Industry and Engineering Society of China and published by the Chemical Industry Press. The aim of the journal is to develop the international exchange of scientific and technical information in the field of chemical engineering. It publishes original research papers that cover the major advancements and achievements in chemical engineering in China as well as some articles from overseas contributors. The topics of journal include chemical engineering, chemical technology, biochemical engineering, energy and environmental engineering and other relevant fields. Papers are published on the basis of their relevance to theoretical research, practical application or potential uses in the industry as Research Papers, Research Notes, Chemical Engineering Data and Reviews. Prominent domestic and overseas chemical experts and scholars have been invited to form an International Advisory Board and the Editorial Committee. It enjoys recognition among Chinese academia and industry as a reliable source of information of what is going on in chemical engineering research, both domestic and abroad.
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    Study on coal pyrolysis characteristics by combining different pyrolysis reactors

    Xiaoping SuZhao WangNing LiLongjian Li...
    1-9页
    查看更多>>摘要：The pyrolysis process of Shendong coal(SD)was first studied by combining the characteristics of thermal gravimetric(TG),pyrolysis-gas chromatography/mass spectrometry(Py-GC/MS)and Gray-King assay(G-K).The results show that the order of coke yields is G-K(76.35％(mass))＞TG(73.11％(mass))＞Py(70.03％(mass)).G-K coke yield caused by condensation reaction and secondary reaction accounts for 3.08％(mass)and 3.24％(mass),respectively.Compared with slow pyrolysis,fast pyrolysis has stronger fracture ability to coal molecules and can obtain more O-compounds,mono-ring aromatics and aliphatics.Especially,the content of phenolics increases significantly from 15.49％to 35.17％,but the content of multi-ring aromatics decreases from 23.13％to 2.36％.By comparing the compositions of Py primary tar and G-K final tar,it is found that secondary reactions occurred during G-K pyrolysis process include the cleavage of alkane and esters,condensation of mono-ring aromatics with low carbon alkene,ring opening,isomerization of tri-ring aromatics,hydrogenation of aromatics and acids.
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    Facile preparation of Fe-Beta zeolite-supported transition metal oxide catalysts and their catalytic performance for the simultaneous removal of NOx and soot

    Xinyu ChenShengran ZhouLanyi WangChunlei Zhang...
    10-20页
    查看更多>>摘要：Diesel engine exhaust comprises nitrogen oxides(NOx)and soot particles,which cause serious air pollution.However,owing to the contradictory nature of NOx reduction and soot oxidation,a trade-off exists in the simultaneous removal of NOx and soot.Consequently,catalytic technology has become a hot research topic.This study prepared MOδ/Fe-Beta(M=Fe,Co,Ni,Mn,Cu)catalysts through incipient wetness impregnation using Fe-Beta as the support and explored the catalytic performance of the above catalysts.The results exhibited the good performance of the prepared catalysts.The introduction of Mn resulted in a lower peak temperature of soot combustion for the catalyst,and slightly decreased deNOx performance of Fe-Beta.The soot combustion temperature was as low as 422℃,and the temperature window for 80％NO conversion was 164-423℃.The interaction between MnOδ and zeolite can regulate the acid sites and produce sufficient active oxygen species for the catalyst.The catalytic activity of the MnOδ/Fe-Beta catalyst is due to its strong redox property,the appropriate number of acid sites,and sufficient number of active oxygen species.In addition,the catalyst had good stability and water and sulfur resistance,therefore it had great potential for future application in the simultaneous removal of NOx and soot from diesel engine exhaust.
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    Center-concave nanosheets of core-shell WO3@Prussian blue based handheld microchip-devices for ultrasensitive lysine determination

    Huaiyu SongMeiyue WangTao LiuZhengkun Liu...
    21-29页
    查看更多>>摘要：Lysine is one of the essential amino acids for human body,and its imbalance is a major cause to anemia,aging process,leukemia cell proliferation and tumor growth.Therefore,its monitoring is dominative to the prevention the disease progress and guidance to the clinical treatment.However,traditional in-hospital detection methods,such as colorimetry and fluorometric,often suffer the disadvantages of high cost and long time-consuming.These drawbacks show a difficulty in the home-in and dairy monitoring for the lysine regulation in body.In this study,we have proposed an ultrasensitive microchip-based portable device to achieve the onsite and precise determination of lysine within only 10 s.This microchip was functionalized through constructing a center-concave nanosheet of core-shell WO3@Prussian blue(WO3@PB)to remarkably strengthen the generation and transfer of the detection signal.In this special architecture,the core WO3 nanosheet can be exposed at the center region of this nanocomposite to effectively promote the enzymatic oxidation,while the PB shell enables to strongly reduce the H2O2 produced by the enzymatic reaction.Under above synergetic effects,a handheld device was designed to support the plug-and-play microchip,which performed an outstanding accuracy for the lysine detection in blood.
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    A covalently integrated ZIF-8/polyamide acid mixed matrix membrane with superior gas separation performance

    Guozhen LiShiqi LingYuhui CuiShilong Dong...
    30-41页
    查看更多>>摘要：Zeolitic imidazolate framework-8(ZIF-8)is a typical filler used to fabricate mixed matrix membranes(MMMs)on account of its attractive advantage of high selective permeability for gas separation.How-ever,the performance is usually affected by filler aggregation due to strong interactions among fillers and weak interactions between the polymer and fillers,However,the performance is usually affected by filler aggregation due to strong interactions among fillers and weak interactions between the polymer and fillers,which will lead to a decrease of selectivity and the performance of gas separation will be strongly influenced.Herein,we modified ZIF-8 with 3-amino-1,2,4-triazole to obtain ZIF-8-NH2,Kapton poly-amide acid was selected as the polymer matrix.Results showed that the ZIF-8-NH2/Kapton MMMs has a good compatibility interface between ZIF-8 and Kapton because of the covalent bridging,even the filler loading up to 45％(mass).The 45％(mass)of ZIF-8-NH2/Kapton membrane showed 297 barrer(1 barrer=10-10 cm3·cm·cm-2 s-1 cmHg-1,1 cmHg=1333.22 Pa,standard temperature and pressure)of the permeability of H2 and 43.9 and 62.2 of selectivities for H2/N2 and for H2/CH4,respectively,which are beyond the upper limit of Robeson 2008.
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    Highly-efficient separation of pyromellitic acid and trimellitic acid mixtures via forming deep eutectic solvents:Experiment and calculation

    Wanxiang ZhangLixia JiYucui HouShuhang Ren...
    42-48页
    查看更多>>摘要：Pyromellitic acid(PMA)and trimellitic acid(TMA)are significant chemical raw materials and in-termediates.They simultaneously exist in the industry processes of synthesis and are difficult to be separated.In this work,several kinds of biodegradable compounds were chosen as hydrogen bond ac-ceptors(HBAs)to separate PMA and TMA mixtures from acetone solutions via forming deep eutectic solvent(DES).It has been found that all these compounds can separate PMA and TMA mixtures to obtain pure PMA or TMA.However,the interaction between HBAs and PMA or TMA is quite different.Choline chloride cannot extract TMA but can form a DES with PMA in acetone.Hexamethylenetetramine(HA)and L-carnitine(L-car)can form DESs with both PMA and TMA in acetone solution.But when L-car or HA is added,the extraction rate of PMA is larger than that of TMA until the extraction rate of PMA reach 100％,and pure TMA is left in the acetone solution.The selective separation mechanism was explored by infrared spectroscopy combined with quantum chemistry calculation,and the strength and site of the interaction between extractants with PMA and TMA were calculated.
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    Preparation of an adsorptive membrane of polyvinylidene fluoride incorporated functionalized boron nitride nanosheets for arsenic removal

    S.SelambakkannuN.L.IshakN.M.FauziN.Ismail...
    49-63页
    查看更多>>摘要：Incorporating nanomaterials into membranes will enhance wastewater treatment efficiency with their unique characteristics,such as higher permeability,thermal stability,surface roughness,hydrophilicity,and fouling control.In this study,the surface-modified boron nitride with phosphoric acid 2-hydroxyethyl methacrylate ester(PA/BN)was grafted with polyethylene glycol(PEG)via conventional grafting.The PEG grafted PA/BN(PEG-g-PA/BN)melt blended with polyvinylidene fluoride(PVDF)resin by using an internal mixer at different mass percentages(100％PVDF(PVDF),3％PEG-g-PA/BN+97％PVDF(97:3 BN),5％PEG-g-PA/BN+95％PVDF(95:5 BN),7％PEG-g-PA/BN+93％PVDF(93:7 BN),and 7％PEG-g-PA/BNNS+93％PVDF(93:7 BNNS).Phase inversion technique was used to cast the blended mixture into a thin membrane.The prepared membranes were analyzed with different characterization techniques to determine chemical composition,crystallinity,morphology,and thermal properties.The prepared composite membrane was evaluated in terms of water permeability,anti-fouling resistance,and solute rejection efficiency with deionized water,bovine serum albumin,and arsenic solution as well.PVDF membranes show high water flux and porosity.The water flux and porosity of the blends decrease as the percentage of PEG-g-PA/BN increases.However,the highest removal capacity for arsenic was observed at 93:7 BN.The adsorption of arsenic ions takes place via complexation with PA/BN in the PVDF matrix.This was confirmed with field emission scanning electron microscopy-energy-dispersive X-ray analysis and X-ray photoelectron spectroscopy analyses.
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    Numerical investigation of turbulent mass transfer processes in turbulent fluidized bed by computational mass transfer

    Hailun RenLiang ZengWenbin LiShuyong Chen...
    64-74页
    查看更多>>摘要：Turbulent fluidized bed possesses a distinct advantage over bubbling fluidized bed in high solids contact efficiency and thus exerts great potential in applications to many industrial processes.Simulation for fluidization of fluid catalytic cracking(FCC)particles and the catalytic reaction of ozone decomposition in turbulent fluidized bed is conducted using the Eulerian-Eulerian approach,where the recently developed two-equation turbulent(TET)model is introduced to describe the turbulent mass diffusion.The energy minimization multi-scale(EMMS)drag model and the kinetic theory of granular flow(KTGF)are adopted to describe gas-particles interaction and particle-particle interaction respectively.The TET model features the rigorous closure for the turbulent mass transfer equations and thus enables more reliable simulation.With this model,distributions of ozone concentration and gas-particles two-phase velocity as well as volume fraction are obtained and compared against experimental data.The average absolute relative de-viation for the simulated ozone concentration is 9.67％which confirms the validity of the proposed model.Moreover,it is found that the transition velocity from bubbling fluidization to turbulent fluidization for FCC particles is about 0.5 m·s-1 which is consistent with experimental observation.
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    The preparation of SnS2@NxC electrodes and its exceptional performance in energy storage usages

    Zhen HeYuqian WeiYunfei SongJiaming Liu...
    75-82页
    查看更多>>摘要：Tin sulfide(SnS2)anodes have garnered significant attention within emerging energy storage technol-ogies.However,the application of SnS2 is curtailed due to its inherent limitations,including poor cyclic stability and inevitable volumetric expansion upon cycling.This study reports the successful fabrication of an innovative SnS2-based composite,featuring an eggshell-like structured nitrogen-doped carbon coating,referred to as SnS2@NxC.This novel architecture,wherein SnS2 acts as the core encapsulated by a nitrogen-doped carbon shell,characterized by a void space between the shell and core,is crucial in mitigating volumetric expansion.This configuration contributes to maintaining the structural integrity of the composite materials,even under the stresses of continuous cycling.Nitrogen within the carbon matrix enhances conductivity and promotes the formation of a more robust and stable solid electrolyte interphase(SEI)layer.Experimental investigations have substantiated the electrochemical superiority of the SnS2@NxC electrode,demonstrating a specific capacity of 701.8 mA·h·g-1 after 1000 cycles at 0.5 A·g-1 and maintaining a capacity of 597.2 mA·h·g-1 after 400 cycles at a heightened current density of 2 A·g-1.These findings underscore the exceptional cyclic performance and durability of the SnS2@NxC electrode.
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    Solid-liquid phase equilibria in the aqueous system containing the chlorides of potassium,ammonium,and calcium at 298.2,323.2,and 348.2 K

    Fuyu ZhugeNan ZhangHaiying TangQi Li...
    83-94页
    查看更多>>摘要：In order to obtain the crystalline forms of the salts of the potassium,ammonium,calcium coexisting chloride system,the phase equilibria relationship of quaternary system K+,NH4,Ca2+//Cl--H2O at 298.2,323.2,and 348.2 K was studied by isothermal dissolution equilibrium method.The solubility and density of equilibrium liquid phases of the system were experimentally determined;X-ray powder diffractom-eter was used to determine the compositions of the equilibrium solid phase at the quaternary invariant point.It is found that the quaternary system is a complex system at these three temperatures.The phase diagram at 298.2 K consists of three invariant points,seven univariate curves and five crystalline phase regions,forming the solid solutions(NH4Cl)x(KCl)1-x and(KCl)x(NH4Cl)1-x;while at 323.2 and 348.2 K the phase diagram consists of five invariant points,eleven univariate curves and seven crystalline phase regions,the double salts(KCl·CaCl2)and(2NH4Cl·CaCl2·3H2O),solid solutions(KCl)x(NH4Cl)1-x and(NH4Cl)x(KCl)1-x were formed.Among them,the crystalline phase region of solid solution(KCl)x(NH4Cl)1-x is the largest at three temperatures,indicating that it is the easiest to crystallize in this system.Comparing the phase diagrams of the quaternary system at 298.2,323.2,and 348.2 K,it can be seen that the crystalline form of CaCl2 changes with the increase of temperature:CaCl2·6H2O at 298.2 K,CaCl2·2H2O at 323.2 and 348.2 K.From 323.2 to 348.2 K,the crystalline phase regions of(KCl·CaCl2)and(2NH4Cl·CaCl2·3H2O)increased gradually.
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    Insights into constructing a stable and efficient microbial consortium system

    Yinshan LinHaohong LinJingyuan LiuFengxue Xin...
    95-104页
    查看更多>>摘要：The concept of labor division and multi-module cooperation of microbial consortia offers it promising potentials in various areas,such as the utilization of complex substrates,synthesis of natural compounds with long metabolic pathways and remediation of environmental pollutants within a hostile environ-ment.Consequently,synthetic microbial consortia represent a new frontier for synthetic biology because they can solve more complex problems than monocultures.However,current research on microbial consortia often involves the simple mixing of multiphase systems,where strains are co-cultured sequentially or individually cultured and then mixed-cultured.The instability and low efficiency of microbial consortia systems hindered their practical application.To construct a stable and efficient microbial consortium,it is essential to consider the different growth and metabolic characteristics of strains,the competition for various nutrients as well as the complex carbon,energy and signaling dy-namics within the system.In this review,we provide a progressive strategy for constructing a stable and efficient microbial consortium system across three stages:compromised stage(work together),microenvironment-oriented stage(work better),and metabolite delivery-enhanced stage(work best).The detailed methods and points for attention of each stage are summarized,with a highlight on the technical bottleneck and application limitations.Through the integration of interdisciplinary strategies,such as materials science and mathematical models,the goal of building a stable and efficient microbial consortium is constantly advanced.
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