首页期刊导航|中国化学工程学报（英文版）
期刊信息/Journal information
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

双月刊

1004-9541

64980783@126.com

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.
正式出版
收录年代

    Effect of carbon material and surfactant on ink property and resulting surface cracks of fuel-cell microporous layers

    Zhekun ChenWeitong PanLongfei TangXueli Chen...
    1-12页
    查看更多>>摘要：Ensuring the consistency of electrode structure in proton-exchange-membrane fuel cells is highly desired yet challenging because of wide-existing and unguided cracks in the microporous layer(MPL).The first thing is to evaluate the homogeneity of MPL with cracks quantitatively.This paper proposes the ho-mogeneity index of a full-scale MPL with an area of 50 cm2,which is yet to be reported in the literature to our knowledge.Besides,the effects of the carbon material and surfactant on the ink and resulting MPL structure have been studied.The ink with a high network development degree produces an MPL with low crack density,but the ink with high PDI produces an MPL with low crack homogeneity.The polarity of the surfactant and the non-polarity of polytetrafluoroethylene(PTFE)are not mutually soluble,resulting in the heterogeneous PTFE distribution.The findings of this study provide guidelines for MPL fabrication.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Hyperbranched polymer hollow-fiber-composite membranes for pervaporation separation of aromatic/aliphatic hydrocarbon mixtures

    Tong LiuHao SunXiangqiong WangJie Li...
    13-22页
    查看更多>>摘要：The separation of aromatic/aliphatic hydrocarbon mixtures is crucial in the petrochemical industry.Pervaporation is regarded as a promising approach for the separation of aromatic compounds from al-kanes.Developing membrane materials with efficient separation performance is still the main task since the membrane should provide chemical stability,high permeation flux,and selectivity.In this study,the hyperbranched polymer(HBP)was deposited on the outer surface of a polyvinylidene fluoride(PVDF)hollow-fiber ultrafiltration membrane by a facile dip-coating method.The dip-coating rate,HBP con-centration,and thermal cross-linking temperature were regulated to optimize the membrane structure.The obtained HBP/PVDF hollow-fiber-composite membrane had a good separation performance for ar-omatic/aliphatic hydrocarbon mixtures.For the 50％/50％(mass)toluene/n-heptane mixture,the permeation flux of optimized composite membranes could reach 1766 g·m-2·h-1,with a separation factor of 4.1 at 60 ℃.Therefore,the HBP/PVDF hollow-fiber-composite membrane has great application prospects in the pervaporation separation of aromatic/aliphatic hydrocarbon mixtures.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Enhancing capacitive deionization performance and cyclic stability of nitrogen-doped activated carbon by the electro-oxidation of anode materials

    Xiaona LiuBaohua ZhaoYanyun HuLuyue Huang...
    23-33页
    查看更多>>摘要：Electrode materials with high desalination capacity and long-term cyclic stability are the focus of capacitive deionization(CDI)community.Understanding the causes of performance decay in traditional carbons is crucial to design a high-performance material.Based on this,here,nitrogen-doped activated carbon(NAC)was prepared by pyrolyzing the blend of activated carbon powder(ACP)and melamine for the positive electrode of asymmetric CDI.By comparing the indicators changes such as conductivity,salt adsorption capacity,pH,and charge efficiency of the symmetrical ACP-ACP device to the asymmetric ACP-NAC device under different CDI cycles,as well as the changes of the electrochemical properties of anode and cathode materials after long-term operation,the reasons for the decline of the stability of the CDI performance were revealed.It was found that the carboxyl functional groups generated by the electro-oxidation of anode carbon materials make the anode zero-charge potential(Epzc)shift positively,which results in the uneven distribution of potential windows of CDI units and affects the adsorption capacity.Furthermore,by understanding the electron density on C atoms surrounding the N atoms,we attribute the increased cyclic stability to the enhanced negativity of the charge of carbon atoms adjacent to quaternary-N and pyridinic-oxide-N.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Synthesis of granulated Li1.33Mn1.67O4 via two antisolvent methods for lithium adsorption from gas-produced water

    Jun QiuLu-Ri BaoWei GuoYing Yang...
    34-46页
    查看更多>>摘要：Gas-produced water is an accompanying wastewater in the natural gas extraction process,and it is a potential liquid lithium resource that contains a considerable amount of lithium.This study investigated the feasibility of using manganese-based ion sieves to adsorb and extract lithium from gas-produced water.And we focused on the applicability of two different granulation methods,extrusion and droplet,in gas-produced water systems.Two types of H1.33Mn1.67O4 particles were prepared by the extrusion method(EHMO)and the droplet method(DHMO).The porosity of DHMO was much higher than that of EHMO,and the adsorption performance of DHMO increased with the decrease of binder concentration.DHMO prepared with a binder concentration of 0.14 g·ml-1 exhibited the best adsorption performance in gas-produced water,and the Li+adsorption capacity could reach 25.14 mg·g-1.In gas-produced water,the adsorption equilibrium of DHMO only took 9 h,and the adsorption process conformed to the Langmuir model and pseudo-second-order kinetic model.The pore diffusion model(PDM)could well describe its adsorption process.Besides,DHMO showed a great selectivity to Li+,and the selectivity order of DHMO in gas-produced water was Li+＞Ba2+(＞＞)Mg2+,Ca2+,Sr2+(＞＞)Na+(＞＞)K+.After 20 cycles,the Li+adsorption capacity was still higher than 17.30 mg·g-1,and the rate of manganese dissolution was less than 1％.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    A gel polymer electrolyte based on IL@NH2-MIL-53(Al)for high-performance all-solid-state lithium metal batteries

    Sijia WangYe LiuLiang HeYu Sun...
    47-55页
    查看更多>>摘要：Solid polymer composite electrolytes possess the benefits of superior compatibility with electrodes and good thermal characteristics for more secure energy storage equipment.Herein,a new gel polymer electrolyte(GPE)containing NH2-MIL-53(Al),[PP13][TFSI],LiTFSI,and PVDF-HFP was prepared using a simple method of solution casting.The effects of encapsulating different ratios of ionic liquid([PP13][TFSI])into the micropores of functionalized metal-organic frameworks(NH2-MIL-53(Al))on the electrochemical properties were compared.XRD,SEM,nitrogen adsorption-desorption isotherms,and electroche-mical measurements were conducted.This GPE demonstrates a superior ionic conductivity of 8.08 × 10-4 S·cm-1 at 60 ℃ and can sustain a discharge specific capacity of 156.6 mA·h·g-1 at 0.2 C for over 100 cycles.This work might offer a potential approach to alleviate the solid-solid contact with the solid-state electrolyte and electrodes and broaden a new window for the creation of all-solid-state batteries.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Aggregation-regulated bioreduction process of graphene oxide by Shewanella bacteria

    Kaixin HanYibo ZengYinghua LuPing Zeng...
    56-62页
    查看更多>>摘要：The bioreduction of graphene oxide(GO)using environmentally functional bacteria such as Shewanella represents a green approach to produce reduced graphene oxide(rGO).This process differs from the chemical reduction that involves instantaneous molecular reactions.In bioreduction,the contact of bacterial cells and GO is considered the rate-limiting step.To reveal how the bacteria-GO integration regulates rGO production,the comparative experiments of GO and three Shewanella strains were carried out.Fourier-transform infrared spectroscopy,X-ray photoelectron spectroscopy,Raman spectroscopy,and atomic force microscopy were used to characterize the reduction degree and the aggregation degree.The results showed that a spontaneous aggregation of GO and Shewanella into the condensed entity occurred within 36 h.A positive linear correlation was established,linking three indexes of the aggre-gation potential,the bacterial reduction ability,and the reduction degree(ID/IG)comprehensively.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Combining reinforcement learning with mathematical programming:An approach for optimal design of heat exchanger networks

    Hui TanXiaodong HongZuwei LiaoJingyuan Sun...
    63-71页
    查看更多>>摘要：Heat integration is important for energy-saving in the process industry.It is linked to the persistently challenging task of optimal design of heat exchanger networks(HEN).Due to the inherent highly non-convex nonlinear and combinatorial nature of the HEN problem,it is not easy to find solutions of high quality for large-scale problems.The reinforcement learning(RL)method,which learns strategies through ongoing exploration and exploitation,reveals advantages in such area.However,due to the complexity of the HEN design problem,the RL method for HEN should be dedicated and designed.A hybrid strategy combining RL with mathematical programming is proposed to take better advantage of both methods.An insightful state representation of the HEN structure as well as a customized reward function is introduced.A Q-learning algorithm is applied to update the HEN structure using the ε-greedy strategy.Better results are obtained from three literature cases of different scales.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Facile molybdenum and aluminum recovery from spent hydrogenation catalyst

    Zhenhui LvJianan LiDong XueTao Yang...
    72-78页
    查看更多>>摘要：Industrial catalyst waste has emerged as a hazardous pollutant that requires safe and proper disposal after the unloading process.Finding a valuable and sustainable strategy for its treatment is a significant challenge compared to traditional methods.In this study,we present a facile method for the recovery of molybdenum and aluminum contents from spent Mo-Ni/Al2O3 hydrogenation catalysts through crys-tallization separation and coprecipitation.Furthermore,the recovered molybdenum and aluminum are utilized as active metals and carriers for the preparation of new catalysts.Their properties were thor-oughly analyzed and investigated using various characterization techniques.The hydrogenation activity of these newly prepared catalysts was evaluated on a fixed-bed small-scale device and compared with a reference catalyst synthesized from commercial raw reagents.Finally,the hydrogenation activity of the catalysts was further assessed by using the entire distillate oil of coal liquefaction as the raw oil,spe-cifically focusing on denitrogenation and aromatic saturation.This work not only offers an effective solution for recycling catalysts but also promotes sustainable development.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Molecular simulation study on the evolution process of hydrate residual structures into hydrate

    Liwei ChengYunfei LiJinlong CuiHuibo Qin...
    79-91页
    查看更多>>摘要：The clathrate hydrate memory effect is a fascinating phenomenon with potential applications in carbon capture,utilization and storage(CCUS),gas separation,and gas storage as it can accelerate the secondary formation of clathrate hydrate.However,the underlying mechanism of this effect remains unclear.To gain a better understanding of the mechanism,we conducted molecular dynamic simulations to simulate the initial formation and reformation processes of methane hydrate.In this work,we showed the evo-lution process of hydrate residual structures into hydrate cages.The simulation results indicate that the residual structures are closely related to the existence of hydrate memory effect,and the higher the contribution of hydrate dissociated water to the hydrate nucleation process,the faster the hydrate nucleation.After hydrate dissociation,the locally ordered structures still exist after hydrate dissociation and can promote the formation of cluster structures,thus accelerating hydrate nucleation.Additionally,the nucleation process of hydrate and the formation process of clusters are inseparable.The size of clusters composed of cup-cage structures is critical for hydrate nucleation.The residence time at high temperature after hydrate decomposition will affect the strength of the hydrate memory effect.Our simulation results provide microscopic insights into the occurrence of the hydrate memory effect and shed light on the hydrate reformation process at the molecular scale.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Enhanced photocatalytic nitrogen fixation performance via in situ constructing BiO2-x/NaNbO3 heterojunction

    Jiayu ZhangZhihao ZengLin YueChunran Zhao...
    92-100页
    查看更多>>摘要：The fabrication of heterojunction catalysts is an effective strategy to enhance charge separation effi-ciency,thereby boosting the performance of photocatalysts.In this study,BiO2-x nanosheets were synthesized through a hydrothermal process and loaded onto NaNbO3 microcube to construct a series of BiO2-x/NaNbO3 heterojunctions for photocatalytic N2 fixation.Results indicated that 2.5％BiO2-x/NaNbO3 had the highest photocatalytic performance.The NH3 production rate under simulated solar light reached 406.4 μmol·L-1·g-1·h-1,which reaches 2.6 and 3.8 times that of NaNbO3 and BiO2-x,respec-tively.BiO2-x nanosheets primarily act as electron trappers to enhance the separation efficiency of charge carriers.The strong interaction between BiO2-x and NaNbO3 facilitates the electron migration between them.Meanwhile,the abundant oxygen vacancies in BiO2-x nanosheets may facilitate the adsorption and activation of N2,which may be another possible reason of the high photocatalytic activity of the BiO2-x/NaNbO3.This study may offer new insights for the development of semiconductor materials in photo-catalytic nitrogen fixation.
      原文链接:
    • NETL
    • NSTL
    • 万方数据