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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

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.
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    Phase equilibrium data prediction and process optimization in butadiene extraction process

    Baowei NiuYanjie YiYuwen WeiFuzhen Zhang...
    1-12页
    查看更多>>摘要：In response to the lack of reliable physical parameters in the process simulation of the butadiene extraction,a large amount of phase equilibrium data were collected in the context of the actual process of butadiene production by acetonitrile. The accuracy of five prediction methods,UNIFAC (UNIQUAC Functional-group Activity Coefficients),UNIFAC-LL,UNIFAC-LBY,UNIFAC-DMD and COSMO-RS,applied to the butadiene extraction process was verified using partial phase equilibrium data. The results showed that the UNIFAC-DMD method had the highest accuracy in predicting phase equilibrium data for the missing system. COSMO-RS-predicted multiple systems showed good accuracy,and a large number of missing phase equilibrium data were estimated using the UNIFAC-DMD method and COSMO-RS method. The predicted phase equilibrium data were checked for consistency. The NRTL-RK (non-Random Two Liquid-Redlich-Kwong Equation of State) and UNIQUAC thermodynamic models were used to correlate the phase equilibrium data. Industrial device simulations were used to verify the accuracy of the ther-modynamic model applied to the butadiene extraction process. The simulation results showed that the average deviations of the simulated results using the correlated thermodynamic model from the actual values were less than 2％ compared to that using the commercial simulation software,Aspen Plus and its database. The average deviation was much smaller than that of the simulations using the Aspen Plus database (>10％),indicating that the obtained phase equilibrium data are highly accurate and reliable. The best phase equilibrium data and thermodynamic model parameters for butadiene extraction are provided. This improves the accuracy and reliability of the design,optimization and control of the process,and provides a basis and guarantee for developing a more environmentally friendly and economical butadiene extraction process.
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    V-MOF-derived V2O5 nanoparticles-modified carbon fiber cloth-based dendrite-free anode for high-performance lithium metal batteries

    Tao WeiMengting WangYanyan ZhouXingtong Guo...
    13-23页
    查看更多>>摘要：At present,commercial Li-ion batteries are hardly to satisfy the growing demand for high energy density,for this purpose,lithium metal batteries have attracted worldwide attention in recent years. However,its practical applications are hindered by the formation of Li dendrites and volume effect during Li plating/stripping process,which leads to a lot of safety hazards. Herein,we first employed MOF-derived V2O5 nanoparticles to decorate the carbon fiber cloth (CFC) backbone to acquire a lithiophilic 3D porous conductive framework (CFC@V2O5). Subsequently,the CFC@V2O5 skeleton was permeated with molten Li to prepare CFC@V2O5@Li composite anode. The CFC@V2O5@Li composite anode can be stably cycled for more than 1650 h at high current density (5 mA·cm-2) and areal capacity (5 mA·h·cm-2). The prepared full cell can initially maintain a high capacity of about 143 mA·h·g-1 even at a high current density of 5 C,and can still maintain 114 mA·h·g-1 after 1000 cycles.
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    Process design and intensification of multicomponent azeotropes special distillation separation via molecular simulation and system optimization

    Chunliang LiuJianhui ZhongRanran WeiJiuxu Ruan...
    24-44页
    查看更多>>摘要：This work provides an overview of distillation processes,including process design for different distil-lation processes,selection of entrainers for special distillation processes,system integration and inten-sification of distillation processes,optimization of process parameters for distillation processes and recent research progress in dynamic control strategies. Firstly,the feasibility of using thermodynamic topological theories such as residual curve,phase equilibrium line and distillation boundary line to analyze different separation regions is discussed,and the rationality of distillation process design is discussed by using its feasibility. Secondly,the application of molecular simulation methods such as molecular dynamics simulation and quantum chemical calculation in the screening of entrainer is dis-cussed for the extractive distillation process. The thermal coupling mechanism of different distillation processes is used to explore the process of different process intensifications. Next,a mixed integer nonlinear optimization strategy for the distillation process based on different algorithms is introduced. Finally,the improvement of dynamic control strategies for different distillation processes in recent years is summarized. This work focuses on the application of process intensification and system optimization in the design of distillation process,and analyzes the challenges,prospects,and development trends of distillation technology in the separation of multicomponent azeotropes.
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    Waste acid recovery utilizing monovalent cation permselective membranes through selective electrodialysis

    Yanran ZhuYue ZhouQian ChenRongqiang Fu...
    45-57页
    查看更多>>摘要：Selective electrodialysis (SED) has surfaced as a highly promising membrane separation technique in the realm of acid recovery owing to its ability to effectively separate monovalent ions through the utilization of a potential difference. However,the current SED process is limited by conventional commercial monovalent cation permselective membranes (MCPMs). This study systematically investigates the use of an independently developed MCPM in the SED process for acid recovery. Various factors such as current density,volume ratio,initial ion concentration,and waste acid systems are considered. The indepen-dently developed MCPM offers several advantages over the commercial monovalent selective cation-exchange membrane (CIMS),including higher recovered acid concentration,better ion flux ratio,improved acid recovery efficiency,increased recovered acid purity,and higher current efficiency. The SED process with the MCPM achieves a recovered acid of 95.9％ and a concentration of 2.3 mol·L-1 in the HCl/FeCl2 system,when a current density of 20 mA·cm-2 and a volume ratio of 1∶2 are applied. Similarly,in the H2SO4/FeSO4 system,a purity of over 99％ and a concentration of 2.1 mol·L-1 can be achieved in the recovered acid. This study thoroughly examines the impact of operation conditions on acid recovery performance in the SED process. The independently developed MCPM demonstrates outstanding acid recovery performance,highlighting its potential for future commercial utilization.
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    The nitrogen transformation behavior based on the pyrolysis products of wheat straw

    Shun GuoYunfei LiShengwei TangTao Zhang...
    58-65页
    查看更多>>摘要：In order to provide basic design parameters for the industrial pyrolysis process,the transformation behavior of nitrogen was investigated using wheat straw as raw material. The distributions of nitrogen in pyrolysis char,oil,and gas were obtained and the nitrogenous components in the products were analyzed systematically by X-ray photoelectron spectroscopy (XPS),pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) and thermogravimetric-Fourier transform infrared spectrometry (TG-FTIR). The nitrogen distribution ranges of the pyrolysis char,oil,and gas were 37.34％-54.82％,32.87％-40.94％ and 10.20％-28.83％,respectively. More nitrogen was retained in char at lower pyrolysis temperature and the nitrogen distribution of oil was from rise to decline with increasing temperature. The most abundant N-containing compounds in three-phase products were pyrrole-N,amines,and HCN,respectively. In addition,the transformation mechanism of nitrogen from wheat straw to pyrolysis products was concluded.
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    Making waste profitable:Efficient recovery of metallic iron from jarosite residues

    Songshan ZhouYunhui HanRong HuangYin Huang...
    66-76页
    查看更多>>摘要：To address the hazardous by-product of zinc smelting and resource utilization of jarosite residue,this study applies an electric field-assisted hot acid treatment to completely recycle iron (Fe). This innovative approach aims to enhance the leaching efficiency of Fe from jarosite residue. The introduction of an electric field changes the charge distribution on the surface of the particles to enhance ions and electrons exchange and promotes the collision between particles to strengthen reaction kinetics. Based on the above,the leaching efficiency of Fe in jarosite under sulfuric acid attack has improved observably. The result shows that Fe leaching efficiency reaches 98.83％,which is increased by 28％ under the optimal experimental conditions:current density of 30 mA·cm-2,H2SO4 concentration of 1.5 mol·L-1,solid-liquid ratio of 70 g·L-1,temperature of 80 ℃ and time of 12 h. Leaching kinetics calculations show that the apparent activation energy is 16.97 kJ·mol-1 and the leaching of jarosite residue is controlled by a mixture of chemical reaction and diffusion,as well as the temperature and concentration of the leaching solution have an influence on leaching. This work provides a feasible idea for the efficient leaching of Fe from jarosite residue.
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    Design and optimization of a greener sinomenine hydrochloride preparation process considering variations among different batches of the medicinal herb

    Dandan RenJiale XieTianle ChenHaibin Qu...
    77-90页
    查看更多>>摘要：The current methods used to industrially produce sinomenine hydrochloride involve several issues,including high solvent toxicity,long process flow,and low atomic utilization efficiency,and the green-ness scores of the processes are below 65 points. To solve these problems,a new process using anisole as the extractant was proposed. Anisole exhibits high selectivity for sinomenine and can be connected to the subsequent water-washing steps. After alkalization of the medicinal material,heating extraction,water washing,and acidification crystallization were carried out. The process was modeled and opti-mized. The design space was constructed. The recommended operating ranges for the critical process parameters were 3.0-4.0 h for alkalization time,60.0-80.0 ℃ for extraction temperature,2.0-3.0 (volume ratio) for washing solution amount,and 2.0-2.4 mol·L-1 for hydrochloric acid concentration. The new process shows good robustness because different batches of medicinal materials did not greatly impact crystal purity or sinomenine transfer rate. The sinomenine transfer rate was about 20％ higher than that of industrial processes. The greenness score increased to 90 points since the novel process proposed in this research solves the problems of long process flow,high solvent toxicity,and poor atomic economy,better aligning with the concept of green chemistry.
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    Green-synthesized,biochar-supported nZVI from mango kernel residue for aqueous hexavalent chromium removal:Performance,mechanism and regeneration

    Yuting ZhangYuwei TangRuiping YanShuang Liang...
    91-101页
    查看更多>>摘要：A biochar-supported green nZVI (G-nZVI@MKB) composite was synthesized using mango kernel waste with"dual identity"as reductant and biomass of biochar. The G-nZVI@MKB with a Fe/C mass ratio of 2.0 (G-nZVI@MKB2) was determined as the most favorable composite for hexavalent chromium (Cr(Ⅵ)) removal. Distinct influencing parameters were discussed,and 99.0％ of Cr(Ⅵ) removal occurred within 360 min under these optimized parameters. Pseudo-second order kinetic model and intra-particle diffusion model well depicted Cr(Ⅵ) removal process. The XRD,FTIR,SEM,and XPS analyses verified the key roles of G-nZVI and functional groups,as well as the primary removal mechanisms involving elec-trostatic attraction,reduction,and complexation. G-nZVI@MKB2 exhibited good stability and reusability with only a 16.4％ decline in Cr(Ⅵ) removal after five cycles. This study offered evidence that mango kernel could be recycled as a beneficial resource to synthesize green nZVI-loaded biochar composite for efficient Cr(Ⅵ) elimination from water.
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    Improved length of calcium sulfate crystal seeds and whiskers via ball milling and hydration treatment

    Yuke LiYuxin LiuJizhen HuangYi Mei...
    102-109页
    查看更多>>摘要：Elucidating the effect of growth periods on the quality of calcium sulfate whiskers (CSWs) prepared from calcium sulfate dihydrate (DH) is imperative. Herein,crystal seeds and whiskers were prepared from DH in a water-glycerol system. Longer whiskers were obtained from crystal seeds prepared via hydration of DH for 30 s than via ball milling for 5 min followed by hydration for 20 s. The attachment of cetyl-trimethyl ammonium bromide and glycerol additives to the whisker tops promoted whisker growth. The whisker sponges exhibited good thermal barrier properties and compression cycle stability.
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    Preparation of K-doped g-C3N4 composite loaded on magnetic attapulgite and its degradation performance for malachite green

    Aishun MaHanlin QianHongxia LiuSili Ren...
    110-121页
    查看更多>>摘要：Visible-light-driven photocatalysis is a promising technology for the treatment of dye wastewater. In this work,a novel photocatalyst of K-doped g-C3N4 loaded on magnetic attapulgite (ATP) (Kω-g-C3N4@ATP-Fe3O4) with excellent visible light photocatalytic properties and stability were successfully prepared and characterized. The removal efficiency of Kω-g-C3N4@ATP-Fe3O4 for malachite green (MG) was studied,and the degradation mechanism was analyzed and proposed. It was found that the K5-g-C3N4@ATP-Fe3O4 photocatalyst possessed excellent degradation efficiency of over 98.0％ for the MG dye wastewater under optimal conditions. Moreover,the K5-g-C3N4@ATP-Fe3O4 materials possessed good recyclability with a removal rate over 82％ after 4 cycles. Under visible light condition,the K5-g-C3N4@ATP-Fe3O4 photo-catalyst produce radicals of·OH and·O2-to degrade the MG dyes,which was supported by electron paramagnetic resonance (EPR) and radical trapping experiments. In addition,the LC-MS analysis inter-preted the degradation pathways and intermediates of MG in the solution. The findings in this work indicate that the prepared photocatalytic material has excellent degradation efficiency for MG and can be applied in dye wastewater treatment.
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