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| 1 | Recent advances in carbon dioxide capture and utilization with amines and ionic liquids显示文摘Global warming and climate change due to anthropogenic carbon dioxide(CO_(2))have aroused significant concerns at the global scale due to rapid economic growth in industries and other fields.Therefore,CO_(2)capture,use,and storage have become particularly important.In this review,general background and methods for CO_(2)capture and separation,in particular,on ionic liquids(ILs)-based solvents and materials,are discussed.Comprehensive surveys of ILs for CO_(2)absorption are presented,which focused mainly on experimental researches,and then the concept is extended to functionalized absorbents and recent developments for CO_(2)capture.Major advantages and disadvantages of amines-based and ILs-based absorbents are discussed in this review.Solutions of traditional amines(MEA,MDEA,DEA,AMP,PZ,etc.)and ILs(conventional ILs,functionalized ILs,etc.)are summarized.Moreover,research progresses on CO_(2)separation are also introduced focusing mainly on amines and ILs-based membranes(e.g.supported amines membranes,SILMs).Futhermore,the fixation of CO_(2)into cyclic carbonates catalyzed by ILs(pure ILs,complex catalyst system with ILs,supported ILs,etc.)is summarized,clearly explaining the mechanism of CO_(2)fixation with ILs.Finally,exploration of some recent studies about CO_(2)capture and conversion by ILs and challenges for further progress are presented and related suggestions are put forward. | Yuxin Wu Jianhong Xu Kathryn Mumford Geoffrey W.Stevens Weiyang Fei Yundong Wang | 2020 | Green Chemical Engineering2020，1，1： | 9 |
| 2 | Brassinosteroids mediate the effect of high temperature during anthesis on the pistil activity of photo-thermosensitive genetic male-sterile rice lines显示文摘Brassinosteroids(BRs)play critical roles in a wide range of plant developmental processes.However,it is unknown whether and how BRs mediate the effect of high temperature(HT)stress during anthesis on the pistil activity of photo-thermosensitive genetic male-sterile(PTSGMS)rice(Oryza sativa L.)lines.This study investigated the question.Three pot-grown PTSGMS rice lines were subjected to HT stress during anthesis.The contents of 24-epibrassinolide(24-EBL)and 28-homobrassinolide(28-HBL),the major forms of BR in rice plants,and levels of reactive oxygen species(ROS)or antioxidants(AOS),hydrogen peroxide(H2O2),1-aminocylopropane-1-carboxylic acid(ACC),ascorbic acid(AsA),and catalase activity in pistils,were determined.HT stress significantly reduced the contents of both 24-EBL and 28-EBL relative to those under normal temperatures,but the reduction varied by PTSGMS line.A line with higher BR contents under HT stress showed lower contents of ACC and H2O2,higher catalase activity and AsA content in pistils,and higher fertilization rate,seed-setting rate,and seed yield when the line was crossed with a restorer line,indicating that higher levels of BRs increase HT stress resistance.Applying 24-EBL,28-HBL or an inhibitor of BR biosynthesis confirmed the roles of BRs in response to HT stress.The results suggest that BRs mediate the effect of HT stress on pistil activity during anthesis and alleviate the harm of HT stress by increasing AOS and suppressing ROS generation. | Jing Chen Keqi Fei Weiyang Zhang Zhiqin Wang Jianhua Zhang | 2021 | The Crop Journal2021，9，1： | 4 |
| 3 | Efficient fixation of CO_(2) into propylene carbonate with [BMIM]Br in a continuous-flow microreaction system显示文摘Utilization of carbon dioxide(CO_(2)) is of great significance in the development of CO_(2) absorption and the solution of greenhouse gas effect.Highly efficient conversion of CO_(2) into cyclic carbonate with green catalysts is essential for the more sustainable expansion of CO_(2) fixation.Traditional batch reactor is limited by low efficiency, high cost and low security. Meanwhile, continuous flow system showcased a myriad of virtues, including shortening the residence time from hours to seconds, and decreasing reaction temperature, and possessing the nature of easy industrial scale-up. In this paper, a continuous-flow microreaction system was developed to synthesis propylene carbonate(PC) from propylene oxide(PO) and CO_(2) using 1-butyl-3-methylimidazolium bromide([BMIM]Br) as catalyst. By observing the flow patterns inside microreaction system, the effects of reaction temperature, molar fraction of catalyst, operating pressure, residence time, molar ratio of CO_(2)/PO as well as recycling performance of catalyst on the overall performances were comprehensively evaluated into details. Under different reaction conditions,the flow patterns were set to vary between slug flow and annular flow. The results showed that the yield of propylene carbonate(PC) can reach99.7% at 140℃ and 3.0 MPa with the residence time of 166 s, while the recycling performance of the designed system greatly conforms the future trend of green chemistry. | Yuxin Wu Yuncheng Ding Jianhong Xu Yundong Wang Kathryn Mumford Geoffrey WStevens Weiyang Fei | 2021 | Green Energy & Environment2021，6，2： | 3 |
| 4 | Structural optimization of a settler via CFD simulation in a mixer-settler显示文摘This work is aimed at optimizing a settler structure in a mixer-settler.Two different aspects have been considered.Firstly,the flowcharacteristics of a settler have been examined by computational fluid dynamics(CFD)simulation with various agitation speeds of the mixer,as well as organic phase volume fractions ranging from 0.075 to 0.6.The aqueous and organic phase turbulent flow fields were measured by particle image velocimetry(PIV)technique to verify the CFD simulation.Two organic phases with different physical properties were assessed in the CFD simulation to simulate the liquid-liquid systems related to rare earth element extraction,i.e.,0.072 mol·L^-1 P507/kerosene and 1.8 mol·L^-1 P507/kerosene.Secondly,the CFD simulation was carried out in a settler equipped with baffles.The effects of number and location of the baffle in the settler on flow features and entrainments of the aqueous and organic outlet were analyzed.Meanwhile,different settler/mixer volume ratios were also examined.By analyses and comparisons,an optimal design for settler was proposed.CFD can provide a significant guidance to better mixer-settler design. | Sishi Ye Qiao Tang Yundong Wang Weiyang Fei | 2020 | Chinese Journal of Chemical Engineering2020，28，4： | 1 |
| 5 | Preparation and application of surface-coated superparamagnetic nanobeads in the isolation of genomic DNA显示文摘 | Xin Xie Xu Zhang Huan Zhang Depu Chen Weiyang Fei | 2003 | Journal of Magnetism and Magnetic Materials2003，，1： | 1 |
| 6 | CO2capture with physical solvent dimethyl carbonate at high pressures显示文摘 | GUI Xia TANG Zhigang FEI Weiyang | 2010 | Journal of Chemical&Engineering Data2010，55，9： | 1 |
| 7 | Extraction Equilib- ria of Lithium with Tributyl Phosphate in Three Diluents显示文摘 | Zhiyong Zhou Wei Qin and Weiyang Fei | 2011 | Chemical & Engineering Data2011，56，： | 1 |
| 8 | Uncertainty modeling of CCS investment strategy in China's power sector显示文摘 | Wenji Zhou Bing Zhu Sabine Fuss Jana Szolgayovi Michael Obersteiner Weiyang Fei | 2010 | Applied Energy2010，87，7： | 1 |
| 9 | Application of non-equilibrium stage model to liquid-liquid extraction)显示文摘 | Fei Weiyang Wen Xiaoming Xie Runxing | 1996 | Tsinghua Science and Technology1996，，4： | 1 |
| 10 | Effect of channel opening angle on the performance of structured packings 显示文摘 | Luo Shujuan Fei Weiyang | 2008 | Chemical Engineering Journal2008，144，2： | 1 |
| 11 | Uncertainty modeling of CCS investment strategy in China's power sector 显示文摘 | Wenji Zhou Bing Zhu Sabine Fuss Jana Szolgayova Michael Obersteiner Weiyang Fei | 2010 | Applied Energy2010，87，7： | 1 |
| 12 | Computational fluid dynamic simulation of fluid flow in a rotating packed bed 显示文摘 | Yang Wenjing Wang Yundong Chen Jianfeng Fei Weiyang | 2010 | Chemical Engineering Journal2010，156，： | 1 |
| 13 | Measurement of activity coefficients at infinite dilution for hydrocarbons in imidazolium-based ionic liquids and QSPR model显示文摘The separations of olefin/paraffin,aromatic/aliphatic hydrocarbons or olefin isomers using ionic liquids instead of volatile solvents have interested many researchers.Activity coefficientsγ∞at infinite dilution of a solute in ionic liquid are generally used in the selection of solvents for extraction or extractive distillation.In fact,the measurement ofγ∞by gas-liquid chromatography is a speedy and cost-saving method.Activity coefficients at infinite dilution of hydrocarbon solutes,such as alkanes,hexenes,alkylben-zenes,styrene,in 1-allyl-3-methylimidazolium tetrafluorobo-rate([AMIM][BF4])and 1-butyl-3-methyl imidazolium hexafluorophosphate([BMIM][PF6]),1-isobutenyl-3-methylimidazolium tetrafluoroborate([MPMIM][BF4])and[MPMIM][BF4]-AgBF4 have been determined by gas-liquid chromatography using ionic liquids as stationary phase.The measurements were carried out at different temperatures from 298 to 318 K.The separating effects of these ionic liquids for alkanes/hexane,aliphatic hydrocarbons/benzene and hexene isomers have been discussed.The hydrophobic parameter,dipole element,frontier molecular orbital energy gap and hydration energy of these hydrocarbons were calculated with the PM3 semi-empirical quantum chemistry method.The quantitative relations among the computed structure para-meters and activity coefficients at infinite dilution were also developed.The experimental activity coefficient data are consistent with the correlated and predicted results using QSPR models. | ZHU Jiqin YU Yanmei CHEN Jian FEI Weiyang | 2007 | Frontiers of Chemical Science and Engineering2007，1，2： | 1 |
| 14 | Computational screening and design of nanoporous membranes for efficient carbon isotope separation显示文摘Stable isotopes have been routinely used in chemical sciences,medical treatment and agricultural research.Conventional technologies to produce high-purity isotopes entail lengthy separation processes that often suffer from low selectivity and poor energy efficiency.Recent advances in nanoporous materials open up new opportunities for more efficient isotope enrichment and separation as the pore size and local chemical environment of such materials can be engineered with atomic precision.In this work,we demonstrate the unique capability of nanoporous membranes for the separation of stable carbon isotopes by computational screening a materials database consisting of 12,478 computation-ready,experimental metal-organic frameworks(MOFs).Nanoporous materials with the highest selectivity and membrane performance scores have been identified for separation of^(12)CH_4/^(13)CH_4 at the ambient condition(300 K).Analyzing the structural features and metal sites of the promising MOF candidates offers useful insights into membrane design to further improve the performance.An upper limit of the efficiency has been identified for the separation of^(12)CH_4/^(13)CH_4 with the existing MOFs and those variations by replacement of the metal sites. | Jingqi Wang Musen Zhou Diannan Lu Weiyang Fei Jianzhong Wu | 2020 | Green Energy & Environment2020，5，3： | 1 |
| 15 | Separation characteristics of boron isotopes in continuous annular chromatography显示文摘A well designed continuous annular chromatograph(CAC) column was set to study the enrichment of Boron isotopes. The column is 820 mm high and consists of a rotational annulus with an outer diameter of 246 mm and a width of 15 mm. The weak basic resin(Diaion WA21J), the boric acid and water were used as the absorbent, the feed and the eluent respectively. The effects of CAC rotating speed, concentration of boric acid and flow ratio of eluent to feed on the enrichment of 10 B were investigated. The concentration of boron isotope was determined by a Thermal Elemental X7 ICP-MS(Thermo Electron Co., USA). It is shown from the experimental results that 10 B and 11 B can be separated effectively by this CAC column. By fitting the experimental elution profiles based on reliable mathematic models and software the mass transfer coefficient k and adsorption equilibrium constant K values of 10 B and 11 B in CAC column were estimated. It is clear from this study that the CAC has practical continuous operational capabilities in comparison with fixed batch chromatography and is an effective technology for separating boron isotopes. | Lihua Zhou Kejing Wu Wei Qin Guanchun Wang Daogui Fu Weiyang Fei | 2015 | Science China Chemistry2015，58，7： | 0 |
| 16 | Effect of counter current gas phase on liquid film显示文摘Liquid film flow is very important in many industrial applications.However,there are few reports about its characteristics on structured packings.Therefore,in this paper,liquid film phenomena were investigated experimentally to exploit new approaches for intensifying the performance of the structured packings.All experi-ments were performed at room temperature.Water and air were the working fluids.The effect of counter current gas phase on the liquid film was taken into consideration.A high speed camera,a non-intrusive measurement techni-que,was used.It is shown that both liquid and gas phases have strong effects on film characteristics.In the present work,liquid film width increased by 57% because of increasing liquid flow rate,while it decreased by 25%resulting from the counter current gas phase. | Shujuan LUO Huaizhi LI Weiyang FEI Yundong WANG | 2009 | Frontiers of Chemical Science and Engineering2009，3，2： | 0 |
| 17 | Struggling as in past, write a glorious future together CJChE’s 40th anniversary显示文摘Chinese,Journal of Chemical Engineering(CJChE),formerly named Selected Papers of Journal of Chemical Industry&Engineering(China)(1982-1985)and Journal of Chemical Industry and Engineering(China)(1986-1992),was renamed to its current title in 1993.The first International Editorial Advisory Board was also estab-lished with Prof.Jiayong Chen,a pioneer in hydrometallurgy,and Prof.Guocong Yu,a famous distillation artist,as the co-editor-in-chiefs. | Weiyang Fei Guangsheng Luo | 2022 | Chinese Journal of Chemical Engineering2022，35，1： | 0 |
| 18 | The steady-state and dynamic simulation of cascade distillation system for the production of oxygen-18 isotope from water显示文摘Accurate simulation of water distillation system for oxygen-18(18O) isotope separation is necessary to guide industrial practice, since both deuterium(D) and oxygen-18 isotope get enriched and interfere with each other. In the present work, steady-state and dynamic distillation models are established based on a classic method and a cascade distillation system with 5 towers is introduced to test the models. The theoretical expressions of separation factor αH/Dfor protium/deuterium and separation factor α^(16)O/^(18) O.for oxygen-16/oxygen-18 were derived,with the existence of deuterium and oxygen-18, respectively. The results of the steady-state simulation by the classical method proposed in the present work agreed well with the results of the lumping method. The dynamic process could be divided into 5 stages. Impressively, a peak value of product withdraw was observed before the final steady state, which was resulted from the change of ^(16)O/^(18) O separation factor and isotope distribution. An interesting low concentration zone in the towers of T2–T5 existed at the beginning of the dynamic process and it required industrial evidence. | Yunhu Gao Zhihong Xu Kejing Wu Xiaolu Wang Zhaojun Yu Weiyang Fei | 2016 | Chinese Journal of Chemical Engineering2016，24，8： | 0 |
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