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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

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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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    Energy-saving design and optimization of pressure-swing-assisted ternary heterogenous azeotropic distillations

    Lianjie WuKun LuQirui LiLianghua Xu...
    1-7页
    查看更多>>摘要：A huge amount of energy is always consumed to separate the ternary azeotropic mixtures by distilla-tions.The heterogeneous azeotropic distillation and the pressure-swing distillation are two kinds of effective technologies to separate heterogeneous azeotropes without entrainer addition.To give better play to the synergistic energy-saving effect of these two processes,a novel pressure-swing-assisted ternary heterogeneous azeotropic distillation(THAD)process is proposed firstly.In this process,the ternary heterogeneous azeotrope is decanted into two liquid phases before being refluxed into the azeotropic distillation column to avoid the aqueous phase remixing,and three columns'pressures are modified to decrease the flowrates of the recycle streams.Then the dividing wall column and heat integration technologies are introduced to further reduce its energy consumption,and the pressure-swing-assisted ternary heterogeneous azeotropic dividing-wall column and its heat integration structure are achieved.A genetic algorithm procedure is used to optimize the proposed processes.The design results show that the proposed processes have higher energy efficiencies and lower CO2 emissions than the published THAD process.
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    Thermogravimetric characteristics of corn straw and bituminous coal copyrolysis based the ilmenite oxygen carriers

    Pengxing YuanXiude HuJingjing MaTuo Guo...
    8-15页
    查看更多>>摘要：Herein,the co-pyrolysis reaction characteristics of corn straw(CS)and bituminous coal in the presence of ilmenite oxygen carriers(OCs)are investigated via thermogravimetry coupled with mass spectrometry.The results reveal that the participation of OCs weakens the devolatilization intensity of co-pyrolysis.When the CS blending ratio is＜50％,the mixed fuel exhibits positive synergistic effects.The fitting re-sults according to the Coats-Redfern integral method show that the solid-solid interaction between OCs and coke changes the reaction kinetics,enhancing the co-pyrolysis reactivity at the high-temperature zone(750-950 ℃).The synergistic effect is most prominent at a 30％CS blending ratio,with copy-rolysis activation energy in the range of 26.35-40.57 kJ·mol-1.
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    Tetraethylenepentamine-functionalized magnetic mesoporous composites as a novel adsorbent for the removal Cr(Ⅲ)-ethylenediaminetetraacetic acid in complex solution

    Zhi HuJiahong WangTongtong Sun
    16-26页
    查看更多>>摘要：A novel tetraethylenepentamine(TEPA)functionalized magnetic mesoporous silica adsorbent(FNMs/TEPA)was prepared for the adsorption of Cr(Ⅲ)-ethylenediaminetetraacetic acid(EDTA)from wastewater.The characterization of the prepared adsorbent certified that TEPA was modified onto the magnetic mesoporous silicon(FNMs),while FNMs/TEPA maintained the ordered mesoporous and pristine magnetic properties.The batch adsorption experiments demonstrated that TEPA significantly enhanced the removal capacity of the adsorbent for Cr(Ⅲ)-EDTA.FNMs/TEPA exhibited an excellent adsorption property(13.84 mg·g-1)at pH 4.0.Even in the presence of high concentrations of coexisting ions and organic acids,the adsorption performance of FNMs/TEPA was stable.Experimental character-ization and DFT demonstrated that the adsorption of Cr(Ⅲ)-EDTA was ascribed to the electrostatic interaction,hydrogen bonding,and complexation between Cr(Ⅲ)-EDTA and amino groups on the adsorbent surface.The analysis of the independent gradient model(IGM)shows that electrostatic interaction is the main mode of action in the adsorption process.Moreover,FNMs/TEPA demonstrated remarkable reusability in three regeneration cycles.These findings indicated that FNMs/TEPA possessed excellent application prospects in the disposal of wastewater containing Cr(Ⅲ)-EDTA.
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    Selective adsorption of tetracycline by β-CD-immobilized sodium alginate aerogel coupled with ultrafiltration for reclaimed water

    Xi QuanJun ZhangLinlin YinWei Zuo...
    27-34页
    查看更多>>摘要：In this work,a novel composite material based on β-cyclodextrin-immobilized sodium alginate aerogel(β-CD/NaAlg)was developed utilizing cross-linker of epichlorohydrin and applied as an adsorbent to remove tetracycline antibiotics from reclaimed wastewater.A series of characterizations were utilized to confirm the successful synthesis of the adsorbent and this β-CD/NaAlg presented a three-dimensional network at the nanoscale or microscale.Under optimal conditions(pH=4,t=8 h,β-CD:NaAlg=9,adsorbent dosage=1.5 g·L-1),the maximum removal rate of β-CD/NaAlg to tetracycline was 70％.The adsorption behavior of tetracycline on β-CD/NaAlg conformed to the Freundlich isotherm model(R2=0.9977)and the pseudo-second-order kinetic model(R2=0.9993).Moreover,the adsorbent still removed 55.3％of tetracycline after five cycles.Specially,the adsorbent was integrated with ultrafiltra-tion to adsorb tetracycline antibiotics from simulated reclaimed wastewater,and the removal rate of tetracycline reached 78.9％within 2 h.The existence of Cr(Ⅵ)had a negligible impact on tetracycline removal,while the presence of humic acid exhibited a promoting effect.The possible adsorption mechanisms were also elucidated through X-ray photoelectron spectroscopy and density functional theory analysis.In summary,β-CD/NaAlg represents an environmentally friendly,efficient,and sus-tainable adsorbent for removing tetracycline antibiotics from reclaimed water.
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    Relationship between hydrogenation degree and pyrolysis performance of jet fuel

    Qing LiuTinghao JiaLun PanJijun Zou...
    35-42页
    查看更多>>摘要：Understanding the relationship between the chemical composition and pyrolysis performance of endothermic hydrocarbon fuel(EHF)is of great significance for the design and optimization of advanced EHFs.In this work,the effect of deep hydrogenation on the pyrolysis of commercial RP-3 is investigated.Fuels with different hydrogenation degrees were obtained by the partially and completely catalytic hydrogenation and their pyrolysis performances were investigated using an apparatus equipped with an electrically heated tubular reactor.The results show that with the increase of hydrogenation degree,fuel conversion almost remains constant during the pyrolysis process(500-650 ℃,4 MPa);however,the heat sink increases slightly,and the anti-coking performance significantly improves,which are highly related to their H/C ratios.Detailed characterisations reveal that the difference of the pyrolysis perfor-mance can be ascribed to the content of aromatics and cycloalkanes:the former are prone to initiate secondary reactions to form coking precursors,while the latter could act as the hydrogen donor and release hydrogen,which will terminate the radical propagation reactions and suppress the coke depo-sition.This work should provide the guidance for upgrading EHFs by modulating the composition of EHFs.
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    Optimizing extractants selection for efficient separation of phenols and nitrogen-containing heteroaromatics using hydrogen bond interaction strategies

    Pengzhi BeiRui ZhangJie FengAntony Rajendran...
    43-52页
    查看更多>>摘要：Focusing on the use of imidazolium ionic liquids and quaternary ammonium salts-based deep eutectic solvents for the separation of phenols and nitrogen-containing heteroaromatics,the role of hetero-aromatics as specific sites for hydrogen bond-based separation has been investigated.These environ-mentally friendly solvents are known for their ability to form hydrogen bonds with heteroatoms,a key aspect in separation processes.We quantified the hydrogen bond interaction energy to reach the threshold energy for efficient O-and N-heteroaromatics separation.This article provides an in-depth study of the structural nuances of different hydrogen bonding sites and their affinity properties while conducting a comparative evaluation of the separation efficiency of ionic liquids and deep eutectic solvents from a thermodynamic perspective.Results showed that phenols with dual hydrogen bonding recognition sites were easier to separate than nitrogen-containing heteroaromatics.Imidazolium ionic liquids were more suitable for the extraction of nonbasic nitrogen-containing heteroaromatics,and quaternary ammonium salts-based deep eutectic solvents are more effective for phenols and basic nitrogen-containing heteroaromatics,which was confirmed by Fourier transform infrared spectroscopy and empirical tests.Therefore,this study provides a theoretical basis for the strategy design and selection of extractants for the efficient separation of O-and N-containing aromatic compounds.
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    Ca2MnO4-layered perovskite modified by NaNO3 for chemical-looping oxidative dehydrogenation of ethane to ethylene

    Weixiao DingKun ZhaoShican JiangZhen Huang...
    53-64页
    查看更多>>摘要：Chemical-looping oxidative dehydrogenation(CL-ODH)is a process designed for the conversion of al-kanes into olefins through cyclic redox reactions,eliminating the need for gaseous O2.In this work,we investigated the use of Ca2MnO4-layered perovskites modified with NaNO3 dopants,serving as redox catalysts(also known as oxygen carriers),for the CL-ODH of ethane within a temperature range of 700-780 ℃.Our findings revealed that the incorporation of NaNO3 as a modifier significantly enhanced the selectivity for ethylene generation from Ca2MnO4.At 750 ℃ and a gas hourly space velocity of 1300 h-1,we achieved an ethane conversion up to 68.17％,accompanied by a corresponding ethylene yield of 57.39％.X-ray photoelectron spectroscopy analysis unveiled that the doping NaNO3 onto Ca2MnO4i not only played a role in reducing the oxidation state of Mn ions but also increased the lattice oxygen content of the redox catalyst.Furthermore,formation of NaNO3 shell on the surface of Ca2MnO4 led to a reduction in the concentration of manganese sites and modulated the oxygen-releasing behavior in a step-wise manner.This modulation contributed significantly to the enhanced selectivity for ethylene of the NaNO3-doped Ca2MnO4 catalyst.These findings provide compelling evidence for the potential of Ca2MnO4-layered perovskites as promising redox catalysts in the context of CL-ODH reactions.
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    Pickering emulsion transport in skeletal muscle tissue:A dissipative particle dynamics simulation approach

    Xuwei LiuWei ChenYufei XiaGuanghui Ma...
    65-75页
    查看更多>>摘要：Lymph node targeting is a commonly used strategy for particulate vaccines,particularly for Pickering emulsions.However,extensive research on the internal delivery mechanisms of these emulsions,especially the complex intercellular interactions of deformable Pickering emulsions,has been surpris-ingly sparse.This gap in knowledge holds significant potential for enhancing vaccine efficacy.This study aims to address this by summarizing the process of lymph-node-targeting transport and introducing a dissipative particle dynamics simulation method to evaluate the dynamic processes within cell tissue.The transport of Pickering emulsions in skeletal muscle tissue is specifically investigated as a case study.Various factors impacting the transport process are explored,including local cellular tissue environ-mental factors and the properties of the Pickering emulsion itself.The simulation results primarily demonstrate that an increase in radial repulsive interaction between emulsion particles can decrease the transport efficiency.Additionally,larger intercellular gaps also diminish the transport efficiency of emulsion droplet particles due to the increased motion complexity within the intricate transport space compared to a single channel.This study sheds light on the nuanced interplay between engineered and biological systems influencing the transport dynamics of Pickering emulsions.Such insights hold valu-able potential for optimizing transport processes in practical biomedical applications such as drug de-livery.Importantly,the desired transport efficiency varies depending on the specific application.For instance,while a more rapid transport might be crucial for lymph-node-targeted drug delivery,certain applications requiring a slower release of active components could benefit from the reduced transport efficiency observed with increased particle repulsion or larger intercellular gaps.
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    Enhancement of liquid-liquid micromixing performance in curved capillary microreactor by generation of Dean vortices

    Shaoyun WuZhuang MaZichi YangSuying Zhao...
    76-82页
    查看更多>>摘要：Micromixing efficiency is an important parameter for evaluating the multiphase mass transfer perfor-mance and reaction efficiency of microreactors.In this work,the novel curved capillary reactor with different shapes was designed to generate Dean flow,which was used to enhance the liquid-liquid micromixing performance.The Villermaux-Dushman probe reaction was employed to characterize the micromixing performance in different curved capillary microreactors.The effects of experiment param-eters such as liquid flow rate,inner diameter,tube length,and curve diameter on micromixing perfor-mance were systematically investigated.Under the optimal conditions,the minimum value of the segmentation factor Xs was 0.008.It was worth noting that at the low Reynolds number(Re＜30),the change of curved shape on the capillary microreactor can significantly improve the micromixing perfor-mance with Xs reduced by 37.5％.Further,the correlations of segment index Xs with dimensionless factor such as Reynolds number or Dean number were developed,which can be used to predict the liquid-liquid micromixing performance in capillary microreactors.
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    Nano-alumina@cellulose-coated separators with the reinforced-concrete-like structure for high-safety lithium-ion batteries

    Zhihao YangLi ChenJian XueMiaomiao Su...
    83-93页
    查看更多>>摘要：Separators play a critical role in the safety and performance of lithium-ion batteries.However,com-mercial polyolefin separators are limited by their poor affinity with electrolytes and low melting points.In this work,we constructed a reinforced-concrete-like structure by homogeneously dispersing nano-Al2O3 and cellulose on the separators to improve their stability and performance.In this reinforced-concrete-like structure,the cellulose is a reinforcing mesh,and the nano-Al2O3 acts as concrete to support the separator.After constructing the reinforced-concrete-like structure,the separators exhibit good stability even at 200 ℃(thermal shrinkage of 0.3％),enhanced tensile strain(tensile stress of 133.4 MPa and tensile strains of 62％),and better electrolyte wettability(a contact angle of 6.5°).Combining these advantages,the cells with nano-Al2O3@cellulose-coated separators exhibit stable cycling performance and good rate performance.Therefore,the construction of the reinforced-concrete-like structure is a promising technology to promote the application of lithium-ion batteries in extreme environments.
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