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

    Flower-like tin oxide membranes with robust three-dimensional channels for efficient removal of iron ions from hydrogen peroxide

    Risheng ShenShilong LiYuqing SunYuan Bai...
    1-7页
    查看更多>>摘要：Membrane technology has become the mainstream process for the production of electronic grade hydro-gen peroxide(H2O2).But due to the oxidation degradation of the organic membranes(e.g.polyamide)by the strong oxidative radicals(e.g.·OH)generated via the activation of H2O2 by iron ions(Fe3+),the short effective lifetime of membranes remains a challenge.Inorganic nano tin oxide(SnO2)has great potential for the removal of Fe3+in strongly oxidative H2O2 because of its ability to stabilize H2O2 and preferentially adsorb Fe3+.Herein,we have designed for the first time a flower-like robust SnO2 membrane on the cera-mic support by in situ template-free one-step hydrothermal method.The three-dimensional loose pore structure in the membrane built by interlacing SnO2 nanosheets endows the SnO2 membrane with a high specific surface area and abundant adsorption sites(—OH).Based on the coordination complexation and electrostatic attraction between the SnO2 surface and Fe3+,the membrane shows a high Fe3+removal effi-ciency(83％)and permeability(24 L·m-2·h-1·MPa-1)in H2O2.This study provides an innovative and sim-ple approach to designing robust SnO2 membranes for highly efficient removal of Fe3+in harsh environments,such as strong oxidation conditions.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Experimental study on the activation of coal gasification fly ash from industrial CFB gasifiers

    Qiyao YangXiaobin QiQinggang LyuZhiping Zhu...
    8-18页
    查看更多>>摘要：Coal gasification fly ash(CGFA)is an industrial solid waste from the coal circulating fluidized bed(CFB)gasification process,and it needs to be effectively disposed to achieve sustainable development of the environment.To realize the application of CGFA as a precursor of porous carbon materials,the physico-chemical properties of three kinds of CGFA from industrial CFB gasifiers are analyzed.Then,the activation potential of CGFA is acquired via steam activation experiments in a tube furnace reactor.Finally,the flu-idization activation technology of CGFA is practiced in a bench-scale CFB test rig,and its advantages are highlighted.The results show that CGFA is characterized by a high carbon content in the range of 54.06％-74.09％,an ultrafine particle size(d50:16.3-26.1 μm),and a relatively developed pore structure(specific surface area SSA:139.29-551.97 m2·g-1).The proportion of micropores in CGFA increases gradually with the coal rank.Steam activation experiments show that the pore development of CGFA mainly includes three stages:initial pore development,dynamic equilibrium between micropores and mesopores and pore collapse.The SSA of lignite fly ash(LFA),subbituminous fly ash(SBFA)and anthracite fly ash(AFA)is maximally increased by 105％,13％and 72％after steam activation;the order of the largest carbon reaction rate and decomposition ratio of steam among the three kinds of CGFA is SBFA＞LFA＞AFA.As the ratio of oxygen to carbon during the fluidization activation of LFA is from 0.09 to 0.19,the carbon con-version ratio increases from 14.4％to 26.8％and the cold gas efficiency increases from 6.8％to 10.2％.The SSA of LFA increases by up to 53.9％during the fluidization activation process,which is mainly due to the mesoporous development.Relative to steam activation in a tube furnace reactor,fluidization acti-vation takes an extremely short time(seconds)to achieve the same activation effect.It is expected to fur-ther improve the activation effect of LFA by regulating the carbon conversion ratio range of 27％-35％to create pores in the initial development stage.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Enhanced stability of nitrogen-doped carbon-supported palladium catalyst for oxidative carbonylation of phenol

    Xiaojing LiuRuohan ZhaoHao ZhaoZhimiao Wang...
    19-28页
    查看更多>>摘要：Enhancing the stability of supported noble metal catalysts emerges is a major challenge in both science and industry.Herein,a heterogeneous Pd catalyst(Pd/NCF)was prepared by supporting Pd ultrafine metal nanoparticles(NPs)on nitrogen-doped carbon;synthesized by using F127 as a stabilizer,as well as chitosan as a carbon and nitrogen source.The Pd/NCF catalyst was efficient and recyclable for oxidative carbonylation of phenol to diphenyl carbonate,exhibiting higher stability than Pd/NC prepared without F127 addition.The hydrogen bond between chitosan(CTS)and F127 was enhanced by F127,which anchored the N in the free amino group,increasing the N content of the carbon material and ensuring that the support could provide sufficient N sites for the deposition of Pd NPs.This process helped to improve metal dispersion.The increased metal-support interaction,which limits the leaching and coars-ening of Pd NPs,improves the stability of the Pd/NCF catalyst.Furthermore,density functional theory cal-culations indicated that pyridine N stabilized the Pd2+species,significantly inhibiting the loss of Pd2+in Pd/NCF during the reaction process.This work provides a promising avenue towards enhancing the sta-bility of nitrogen-doped carbon-supported metal catalysts.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Solubility of iron(Ⅲ)and nickel(Ⅱ)acetylacetonates in supercritical carbon dioxide

    Haixin SunJianlei QiJianfei SunLin Li...
    29-34页
    查看更多>>摘要：As a common precursor for supercritical CO2(scCO2)deposition techniques,solubility data of organometallic complexes in scCO2 is crucial for the preparation of nanocomposites.Recently,metal acetylacetonates have shown great potential for the preparation of single-atom catalytic materials.In this study,the solubilities of iron(Ⅲ)acetylacetonate(Fe(acac)3)and nickel(Ⅱ)acetylacetonate(Ni(acac)2)were measured at the temperature from 313.15 to 333.15 K and in the pressure range of 9.5-25.2 MPa to accumulate new solubility data.Solubility was measured using a static weight loss method.The semi-empirical models proposed by Chrastil and Sung et al.were used to correlate the solubility data of Fe(acac)3 and Ni(acac)2.The equations obtained can be used to predict the solubility of the same sys-tem in the experimental range.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Filtration performance and modeling of granular bed for dust removal from coal pyrolytic vapors

    Shuaiqiang YangLin DuGuangchao DingRunguo Liu...
    35-42页
    查看更多>>摘要：Dust removal from pyrolytic vapors at high temperatures is an obstacle to the industrialization of the coal pyrolysis process.In this work,a granular bed with expanded perlites as filtration media was designed and integrated into a 10 t·d-1 coal pyrolysis facility.The testing results showed that around 97.56％dust collection efficiency was achieved.As a result,dust content in tar was significantly lowered.The pressure drop of the granular bed maintained in the range of 356 Pa to 489 Pa.The dust size in the effluent after filtration exhibited a bimodal distribution,which was attributed to the heterogeneity of the dust compo-nents.The effects of filtration bed on pyrolytic product yields were also discussed.A modified filtration model based on the macroscopic phenomenological theory was proposed to describe the performance of the granular bed.The computation results were well agreed with the experimental data.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Copper slag assisted coke reduction of phosphogypsum for sulphur dioxide preparation

    Dong MaQinhui Wang
    43-53页
    查看更多>>摘要：The reduction of phosphogypsum(PG)to lime slag and SO2 using coke can effectively alleviate the envi-ronmental problems caused by PG.However,the PG decomposition temperature remains high and the product yield remains poor.By adding additives,the decomposition temperature can be further reduced and PG decomposition rate and product yield can be improved.However,the use of current additives such as Fe2O3 and SiO2 brings the problem of increasing economic cost.Therefore,it is proposed to use solid waste copper slag(CS)as a new additive to reduce PG to prepare SO2,which can reduce the cost and meet the environmental benefits at the same time.The effects of proportion,temperature and ther-mostatic time on PG decomposition are investigated by experimental and kinetic analysis combined with FactSage thermodynamic calculations to optimize the roasting conditions.Finally,the reaction mecha-nism is proposed.It is found that adding CS to the coke and PG system can increase the rate of PG decom-position and SO2 yield while lowering the PG decomposition temperature.For example,when the CS/PG mass ratio increases from 0 to 1,PG decomposition rate increases from 83.38％to 99.35％,SO2 yield increases from 78.62％to 96.81％,and PG decomposition temperature decreases from 992.4 ℃ to 949.6 ℃.The optimal reaction parameters are CS/PG mass ratio of 1,Coke/PG mass ratio of 0.06 at 1100 ℃ for 20 min with 99.35％PG decomposition rate and 96.81％SO2 yield.The process proceeds according to the following reactions:2CaSO4+0.7C+0.8Fe2SiO4 → 0.8Ca2SiO4+0.2Ca2Fe2O5+0.4Fe3O4+2SO2+0.7CO2 Finally,a process for decomposing PG with coke and CS is proposed.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    The Al2O3 and Mn/Al2O3 sorbents highly utilized in destructive sorption of NF3

    Yanfei PanHejian LiLi ZhengXiufeng Xu...
    54-62页
    查看更多>>摘要：NF3 is commonly used as an etching and cleaning gas in semiconductor industry,however it is a strongly greenhouse gas.Therefore,the destruction of disposal NF3 is an urgent task to migrate the greenhouse effect.Among the technologies for NF3 abatement,the destructive sorption of NF3 over metal oxides sor-bents is an effective way.Thus,the search for a highly reactive and utilized sorbent for NF3 destruction is in great demand.In this work,AlOOH supported on carbon-sphere(AlOOH/CS)as precursors were syn-thesized hydrothermally and heat-treated to prepare the Al2O3 sorbents.The influence of AlOOH/CS hydrothermal temperatures on the reactivity of derived Al2O3 sorbents for NF3 destruction was investi-gated,and it is shown that the Al2O3 from AlOOH/CS hydro-thermalized at 120 ℃ is superior to others.Subsequently,the optimized Al2O3 was covered by Mn(OH)x to prepare Mn/Al2O3 sorbents via changing hydrothermal temperatures and Mn loadings.The results show that the Mn/Al2O3 sorbents are more uti-lized than bare Al2O3 in NF3 destructive sorption due to the promotional effect of Mn2O3 as surface layer on the fluorination of Al2O3 as substrate,especially the optimal 5％Mn/Al2O3(160 ℃)exhibits a utilization percentage as high as 90.4％,and remarkably exceeds all the sorbents reported so far.These findings are beneficial to develop more efficient sorbents for the destruction of NF3.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Effect of aspect ratio of elliptical stirred vessel on mixing time and flow field characteristics in the absence of baffles

    Yuan YaoPeiqiao LiuQian ZhangZequan Li...
    63-74页
    查看更多>>摘要：Elliptical tanks were used as an alternative to circular tanks in order to improve mixing efficiency and reduce mixing time in unbaffled stirred tanks(USTs).Five different aspect ratios of elliptical vessels were designed to compare their mixing time and flow field.Computational fluid dynamics(CFD)simulations were performed using the k-ε model to calculate the mixing time and simulate turbulent flow field fea-tures,such as streamline shape,velocity distribution,vortex core region distribution,and turbulent kinetic energy(TKE)transfer.Visualization was also carried out to track the tinctorial evolution of the liquid phase.Results reveal that elliptical stirred tanks can significantly improve mixing performance in USTs.Specifically,the mixing time at an aspect ratio of 2.00 is only 45.3％of the one of a circular stirred tank.Furthermore,the secondary flow is strengthened and the vortex core region increases with the increase of aspect ratio.The axial velocity is more sensitive to the aspect ratio than the circumferential and radial velocity.Additionally,the TKE transfer in elliptical vessels is altered.These findings suggest that elliptical vessels offer a promising alternative to circular vessels for enhancing mixing performance in USTs.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Facile synthesis of hierarchical NaX zeolite from natural kaolinite for efficient Knoevenagel condensation

    Wen XiaoPeng DongChan WangJingdong Xu...
    75-84页
    查看更多>>摘要：Zeolite catalysts have found extensive applications in the synthesis of various fine chemicals.However,the micropores of zeolites impose diffusion limitations on bulky molecules,greatly reducing the catalytic efficiency.Herein,we explore an economic and environmentally friendly method for synthesizing hier-archical NaX zeolite that exhibits improved catalytic performance in the Knoevenagel condensation reac-tion for producing the useful fine chemical 2-cyano-3-phenylacrylate.The synthesis was achieved via a low-temperature activation of kaolinite and subsequent in-situ transformation strategy without any tem-plate or seed.Systematic characterizations reveal that the synthesized NaX zeolite has both inter-crystalline and intra-crystalline mesopores,smaller crystal size,and larger external specific surface area compared to commercial NaX zeolite.Detailed mechanism investigations show that the inter-crystalline mesopores are generated by stacking smaller crystals formed from in-situ crystallization of the depoly-merized kaolinite,and the intra-crystalline mesopores are inherited from the pores in the depolymerized kaolinite.This synthesis strategy provides an energy-saving and effective way to construct hierarchical zeolites,which may gain wide applications in fine chemical manufacturing.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Boosting kinetic separation of ethylene and ethane on microporous materials via crystal size control

    Yixuan MaCong YuLifeng YangRimin You...
    85-91页
    查看更多>>摘要：The adsorptive separation of C2H4 and C2H6,as an alternative to distillation units consuming high energy,is a promising yet challenging research.The great similarity in the molecular size of C2H4 and C2H6 brings challenges to the regulation of adsorbents to realize efficient dynamic separation.Herein,we reported the enhancement of the kinetic separation of C2H4/C2H6 by controlling the crystal size of ZnAtzPO4(Atz=3-amino-1,2,4-triazole)to amplify the diffusion difference of C2H4 and C2H6.Through adjusting the synthe-sis temperature,reactant concentration,and ligands/metal ions molar ratio,ZnAtzPO4 crystals with dif-ferent sizes were obtained.Both single-component kinetic adsorption tests and binary-component dynamic breakthrough experiments confirmed the enhancement of the dynamic separation of C2H4/C2H6 with the increase in the crystal size of ZnAtzPO4.The separation selectivity of C2H4/C2H6 increased from 1.3 to 98.5 with the increase in the crystal size of ZnAtzPO4.This work demonstrated the role of morphology and size control of adsorbent crystals in the improvement of the C2H4/C2H6 kinetic separa-tion performance.
      原文链接:
    • NETL
    • NSTL
    • 万方数据