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颗粒学报（英文版）
颗粒学报（英文版）

郭慕孙

双月刊

1674-2001

jcsp@home.ipe.ac.cn

010-82629146

100080

北京中关村北二条1号中科院过程所内

颗粒学报（英文版）/Journal China ParticuologyCSCDCSTPCD北大核心EISCI
查看更多>>本刊以创精品与国际化为办刊方针，旨在反映中国颗粒学研究的最新成果、及时追踪国际颗粒学领域的最新动态。学报主要刊登国内外颗粒学领域中的研究、工程和应用方面的优秀原始论文，包括颗粒测试与表征、颗粒制备与处理、流态化、气溶胶和超微颗粒等。本刊不仅设有论坛、研究论文、研究简报等内容，还有书评、会议信息与报道、测试仪器进展等栏目，便于相关人士进行学术交流，并为科技成果的展示提供平台，信息十分丰富。本刊已陆续被美国化学文摘（CA），俄罗斯文摘杂志（AJ），剑桥科学文摘（CSA）以及中国科技论文与引文数据库(CSTPCD)收录。China PARTICUOLOGY, a bimonthly interdisciplinary journal in English, purports to present the best papers in research, engineering and application in the overall field of PARTICUOLOGY, including particle characterization, particle preparation, aerosol, fluidization and ultra-fine particles. The word PARTICUOLOGY was coined to correspond to its Chinese terminology, which denotes both the science and technology of particles. Although the journal is China-based, it serves as a medium for all accepted papers of international origin, especially the best papers representing current advances in the world. Besides scientific and engineering papers, the journal includes the following sections: R & D notes, Current events, Editorials reviews, Forum for comments, opinions and qualified speculations, News on books, instruments and meetings.Now， China Particuology has been indexed by CA, AJ , CSA and CSTPCD.??读者对象（Audiences）： 中国颗粒学会会员、国内外从事颗粒学和颗粒技术研究和生产的大专院校师生、科研院所及企业的研究人员和技术人员。 Member of Chinese Society of Particuology, and researchers or experts who are engaged in the study of particle sciences and technology coming from colleges, institutes and corporations all over the world.
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    Impact of the spindle number on the material transport and mixing during planetary roller melt granulation

    Tom LangJens Bartsch
    260-267页
    查看更多>>摘要：In comparison to the established twin-screw machines,the application of a planetary roller granulator for continuous operation of melt granulation is a promising alternative based on the unique process concept.An initial study focused on the material transport during processing as a key driver for the overall performance.Hereby,the impact of direct process parameters on the residence time distribution was the main objective.These investigations are complemented in this study by considering the free processing volume,which is defined by the number of planetary spindles applied within a module.The impact on the processing conditions is evaluated with respect to the process setting in terms of feed rate and rotation speed.The results highlight the potential of altering the underlying transport function in planetary roller melt granulation(PRMG)via the investigated direct process and equipment parameters.The impact of the feed rate is lower in comparison,while a higher rotation speed as well as a higher free processing volume promote material mixing.Moreover,a normalization of the determined residence time distribution(RTD)model data was feasible with respect to the process settings and the number of applied planetary spindles in the processing zone.This demonstrates the key role of the free processing volume in the fundamental mechanisms of material transport and mixing during PRMG.
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    Residence time distribution of wood chips in a semi-industrial multiple hearth furnace using RFID tracers

    Elie LacombeMuriel MarchandCapucine DupontDenis Maréchal...
    268-279页
    查看更多>>摘要：In continuous biomass torrefaction plants,the products'yields,composition and homogeneity highly depend on the residence time of particles.A characterization of particle residence time distribution(RTD)was therefore carried out in an industrial-scale multiple hearth furnace on poplar wood chips using radio frequency identification tracers.The effects of operating conditions,namely,mass flow rate of biomass,shaft speed of the rabbling system and interdental length on the RTD were studied.The increase of shaft speed and mass flow rate reduces particles'mean residence time.Lowering the length between two successive teeth also increases the bed speed.Uncontrollable biomass accumulation(also called"bulldozing")was observed during several tests.This phenomenon is favored by a high mass flow rate of resources,a small interdental length between the teeth and a low shaft speed.RTD measurements were compared to the axial dispersion model.For all tests,the Peclet number is ranging between 20 and 62,indicating that the multiple hearth furnace cannot be modelled as an ideal plug flow reactor.
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    PEGylated graphene oxide-mediated stimulation of vascular endothelial cells and responsive release of PD-1/PD-L1 inhibitor for efficient chemo-immunotherapy against cancer

    Yan WangFeng LiShuang WangJiaqi Meng...
    280-290页
    查看更多>>摘要：Immune checkpoint blockade(ICB)has emerged as a promising immunotherapeutic modality against cancer in the clinic.However,only 10-30％of patients respond to ICB,primarily due to poor immuno-genicity and insufficient T cell infiltration in solid tumors.Herein,we presented an approach for high-performance cancer treatment using the programmed cell death protein-1 and programmed cell death ligand-1(PD-1/PD-L1)inhibitor(BMS-202)-loaded PEGylated graphene oxide(GPi).On the one hand,GPi dissociated tight junctions of vascular endothelial cells(VECs)in tumor,thus promoting the extravasation and intratumoral accumulation of liposomal doxorubicin(LipDox),which then effectively induced immunogenic cell death of tumor cells.On the other hand,GPi also stimulated VECs to upre-gulate the expression of cell-cell interaction molecules,such as intercellular cell adhesion molecule-1 and vascular cell adhesion molecule-1,which facilitated the infiltration of T cells in tumor.Beyond acting as a stimulator of VECs,GPi could exert responsive release of BMS-202 under the acidic tumor microenvironment and blockade PD-1/PD-L1 axis in tumors.Finally,the alternating administration of GPi and LipDox effectively inhibited tumor growth in a 4T1 tumor model,providing a novel treatment mode for chemo-immunotherapy.
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    Effects of physical properties of supercritical water on heat transfer characteristics of single particle within a particle cluster

    Xiaoyu LiBowei ZhangHuibo WangHui Jin...
    291-302页
    查看更多>>摘要：The complex physical properties of supercritical water(SCW)make the heat transfer characteristics of particles within a particle cluster complicated.The heat transfer characteristics of single particle within a particle cluster in SCW,influenced by surrounding particles,have not been effectively explored.The numerical simulations were conducted to investigate the heat transfer characteristics of particle clusters in SCW under different conditions.The results were compared and analyzed with those from constant property flow.It was found that Reynolds number(Re)and the void fraction of particle cluster have no special effects on the variation trends of Nusselt number(Nu)for the focused particle.However,the particle temperature had a significant effect on the variation trends of Nu.The effect of Re on the heat transfer rate exponent(η)of the focused particle can be divided into two zones:a significant effect zone and a non-significant effect zone.The effect of void fraction on p in the non-significant effect zone was minimal.Within the non-significant effect zone,p decreased with the increasing particle temperature.In the significant effect zone,the variation trends of p became more complex.The fundamental reason for this series of phenomena is the changes in distribution of physical properties.A model for p was developed for the non-significant effect zone.This model can filter out the effects of Re and certain particle cluster spatial configurations,and it demonstrates good predictive performance.
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    A clean disposal method of carbide slag with carbon emission reduction:Used as a flux for iron ore sintering

    Hanxiao MengJiankang WangXiang LiuKelang Jin...
    303-314页
    查看更多>>摘要：Limestone or quicklime is a necessary flux in the iron ore sintering process.Its production and appli-cation process will cause CO2 emissions and various environmental pollution,but this has not attracted enough attention.Carbide slag(CS)is a calcium-rich solid waste produced in acetylene production,the harmless disposal of which is still incomplete,resulting in soil and groundwater pollution.This study investigated the granulation characteristics and sintering performance of the sintering mixture with different proportions of CS.The results show that replacing limestone with an appropriate proportion of CS is promising and beneficial to the formation of high-quality bonding phase.When CS accounts for 75％of the total mass of CS and limestone,the tumbler index increases by 8.10％and the comprehensive index decreases only from 100 to 96.16,which is within the acceptable range.The application of CS in iron ore sintering can achieve a clean disposal of it and a considerable carbon emission reduction,as the main component of which is Ca(OH)2.
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    Combustion characteristics of millimeter-sized aluminum particles in fluidized bed under various O2/CO2/H2O atmospheres

    Jialing ZhouRui ZhangDong Liu
    315-322页
    查看更多>>摘要：Aluminum is an attractive alternative fuel,but it burns very inefficiently due to the formation of a dense Al2O3 layer which prevents O2 from diffusion to the surface of Al particles.In previous experiments,the combustion of millimeter-sized Al(mAl)particles in the fluidized bed has achieved a substantial increase in the combustion efficiency,but further improvements are still needed.In this study,the effects of reaction atmosphere on the fluidized combustion of mAl particles were investigated.The experiments with different O2/H2O/CO2 concentrations were conducted.The experimental results indicate that the combustion efficiency of mAl particles in fluidized bed increases as the mole fraction of O2,H2O or CO2 increases,and the highest combustion efficiency can reach 38.7％.After the analysis of the oxide film on the surface of aluminum particles,it was found that it is easier to generate the unstable θ-Al2O3 under CO2 atmosphere,and it is easier to generate the unstable γ-Al2O3 and θ-Al2O3 under H2O atmosphere.The unstable Al2O3 film is more likely to be abraded in the fluidized bed,which leads to the effective improvement of the combustion efficiency.
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    Extract lithium from clay-type lithium ore by mixed acid and its mechanism

    Wuchang ZhouRuiqi XieXiong TongXian Xie...
    323-332页
    查看更多>>摘要：A roasting-leaching test was carried out for the efficient utilization of clay-type lithium ore in the central region of Yunnan province.The test used the mixed acid of sulfuric acid and phosphoric acid as the leaching agent.Under the conditions of roasting temperature of 600 ℃,roasting time of 1 h,liquid-solid ratio of 5:1,volume ratio of H2SO4 solution to H3PO4 solution of 45:5,leaching time of 2 h and leaching temperature of 80 ℃,the leaching rate of lithium was as high as 97.83％.The leaching mechanism was studied by SEM,pore property analysis,XRD and XPS.It was found that the morphology of the ore changed obviously after roasting and leaching,and a certain degree of collapse and fragmentation occurred,which provided favorable spatial conditions for the leaching of lithium.The porosity,total intrusion volume and total pore area also increased after roasting and leaching,thus promoting the leaching of Li+.The results showed that chemical reaction taken placed during the roasting and leaching.The phase of the sample changed from chlorite,kaolinite and diaspore(boehmite)mainly to corundum,hematite,periclase and quartz after roasting.However,after leaching,no new phase was produced in the ore sample,and no S and P elements were found on the surface of the ore sample,indicating that the leaching mechanism of lithium might be the ion exchange between H+and Li+.
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    Facile interfacial synthesis of gold micronails with adjustable length and roughness and their superior SERS properties for the detection of p-aminothiophenol

    Hang LiKaisheng YaoTianhang LiuWeiwei Lu...
    333-340页
    查看更多>>摘要：Au hierarchical architectures with special morphology and structures are strongly desired in varied applications.Herein,a simple synthesis method was developed for the one-step preparation of Au micronails(MNs)at the planar liquid-liquid interface under mild conditions.The well-defined Au MNs were grown and constructed at CHCl3-H2O interface at room temperature using aniline in CHCl3 as reducing agent and HAuCl4 in H2O as precursor and no surfactant or seed is required.The intriguing Au MNs with rough surface consist of big heads and thin rods,just like iron nails in outline.Furthermore,through simple changing the reagent concentrations,the length and surface roughness of Au MNs can be adjusted conveniently.The effects of a series of factors on the morphology and structure of the products are studied in detail.With p-aminothiophenol as a molecular probe,the as-obtained Au MNs all exhibit dramatically improved surface enhanced Raman scattering sensitivity and high reproducibility,the enhancement factor and limit of detection of Au MNs are 5.4 × 105 and 1.0 × 10-10,respectively.
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    Study on viscosity mechanism of caffeine crystallization solutions

    Linjing YuMin Su
    341-350页
    查看更多>>摘要：The solid-liquid viscous system formed by high viscosity crystallization solution impacts the flow and separation performance.Therefore,it is very important to study the viscosity mechanism to improve viscosity and regulate crystallization,ensuring a seamless production process.Herein,the viscosity of crystallization solution was taken as the measurement parameter of caffeine as a model drug.We investigated the viscosity mechanism of caffeine crystallization solutions by combining experiment and simulation.The results indicated that the weak interactions between caffeine and water result in increased viscosity of the caffeine crystallization solutions.Moreover,caffeine crystals possess elongated needle-like shapes,featuring a substantial specific surface area.Additionally,there is π-π stacking occurring between the(2 0 0)crystal face and(110)crystal face,effectively fostering coalescence of the crystals towards the radial side of the crystal along its elongated axis,resulting in a more viscous crystallization system.The results contribute to comprehending the viscosity mechanism of crystal systems and provide theoretical foundation to enhance engineering efficiency in crystallization.
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    A review on numerical studies of airflow dynamics and particle deposition in human respiratory system

    Hao JingXinguang Cui
    351-377页
    查看更多>>摘要：Accurate assessment and prediction of airflow dynamics and particle deposition in the human respira-tory tract are essential for human health,involving inhaled drugs for treating various diseases and toxic particles that can cause illnesses.This intricate process involves complex multiphase flow with distinct respiratory characteristics.Computational fluid dynamics(CFD)acts as a bridge,overcoming the limi-tations of in vivo and in vitro experiments and providing a means to fully comprehend and reveal the fundamental mechanisms of respiratory flow and particle behavior on a microscopic scale.This paper provides a comprehensive overview and concise summary of recent advancements in the numerical simulation of airflow and particle deposition in the human respiratory tract.Particularly,it summarizes the transition of respiratory tract models from segmented models to emerging physiological charac-teristic models and whole-lung airway models,and the latest developments on the effects of key factors such as geometric variations,respiratory patterns,and particle physical/chemical properties on respi-ratory flow and particle deposition.A notable focus of this review is on emerging physiological char-acteristics models and their associated complex airflow and particle dynamics inside it.The paper concludes with recommendations for future research to further advance the development of this field.
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