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Simulation and design of a heat-integrated double-effect reactive distillation process for propylene glycol methyl ether production

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Chinese Journal of Chemical engineering 2022年第12期52卷 103-114页

作者： Ran An Shengxin Chen Shun Hou Yuting Zhu Chunhu Li Xinbao Zhu Ruixia Liu Weizhong An Department of Chemical Engineering Ocean University of ChinaQingdao 266100China Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China College of Chemical Engineering Nanjing Forestry UniversityNanjing 210037China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China

A double-effect reactive distillation(DERD)process was proposed for the production of propylene glycol methyl ether from propylene oxide and methanol to overcome the shortcoming of low selectivity and high-energy consumption in the tubular plug-flow reactor.A single-column reactive distillation(RD)process was conducted under optimized operating conditions based on sensitivity analysis as a *** results demonstrated that the proposed DERD process is able to achieve more than 95%selectivity of the desired *** that,a design approach of the DERD process with an objective of the minimum operating cost was proposed to achieve further energy savings in the RD *** proposed DERD configuration can provide a large energy-savings by totally utilization of the overhead vapor steam in the high-pressure RD column.A comparison of the single-column RD process revealed that the proposed DERD process can reduce the operating cost and the total annual cost of 25.3%and 30.7%,respectively,even though the total capital cost of DERD process is larger than that of the RD process.

关键词： Propylene oxide Reactive distillation Heat integration Propylene glycol monomethyl ether process simulation

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From aniline to phenol: carbon-nitrogen bond activation via uranyl photoredox catalysis

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National Science Review 2022年第6期9卷 74-80页

作者： Deqing Hu Yilin Zhou Xuefeng Jiang Shanghai Key Laboratory of Green Chemistry and Chemical Process School of Chemistry and Molecular Engineering East China Normal University State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences State Key Laboratory of Elemento-Organic Chemistry Nankai University

Carbon-nitrogen bond activation, via uranyl photoredox catalysis with water, enabled the conversion of 40 protogenetic anilines, 8 N-substituted anilines and 9 aniline-containing natural products/pharmaceuticals to the corresponding phenols in an ambient environment. A single-electron transfer process between a protonated aniline and uranyl catalyst, which was disclosed by radical quenching experiments and Stern-Volmer analysis, facilitated the following oxygen atom transfer process between the radical cation of protonated anilines and uranyl peroxide originating from water-splitting.18O labeling and15N tracking unambiguously depicted that the oxygen came from water and amino group left as ammonium salt. The 100-fold efficiency of the flow operation demonstrated the great potential of the conversion process for industrial synthetic application.

关键词： C−N bond activation C−O bond formation uranyl cations photoredox catalysis

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Rare-earth separation based on the differences of ionic magnetic moment via quasi-liquid strategy

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Frontiers of Chemical Science and engineering 2022年第11期16卷 1584-1594页

作者： Na Wang Fujian Li Bangyu Fan Suojiang Zhang Lu Bai Xiangping Zhang College of Chemical and Engineering Zhengzhou UniversityZhengzhou 450001China CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Multiphase Complex SystemsBeijing Key Laboratory of Ionic Liquids Clean ProcessInstitute of Process Engineering and Innovation Academy for Green ManufactureChinese Academy of SciencesBeijing 100190China Ganjiang Innovation Academy Chinese Academy of SciencesGanzhou 341000China College of Chemistry Nanchang UniversityNanchang 330031China

The separation of rare earth elements is particularly difficult due to their similar physicochemical *** on the tiny differences of ionic radius,solvent extraction has been developed as the“mass method”in industry with hundreds of stages,extremely intensive chemical consumption and large capital *** differences of the ionic magnetic moment among rare earths are greater than that of ionic ***,a novel method based on the large ionic magnetic moment differences of rare earth elements was proposed to promote the separation *** earths were firstly dissolved in the ionic liquid,then the ordering degree of them was improved with the Z-bond effect,and finally the magnetic moment differences between paramagnetic and diamagnetic rare earths in quasi-liquid system were *** the separation of Er/Y,Ho/Y and Er/Ho as examples,the results showed that Er(Ⅲ)and Ho(Ⅲ)containing ionic liquids had obvious magnetic response,while ionic liquids containing Y(Ⅲ)had no *** separation factors of Er/Y and Ho/Y were achieved at 9.0 and 28.82,*** separation via quasi-liquid system strategy provides a possibility of the novel,green,and efficient method for rare earth separation.

关键词： rare earth element different magnetic moment magnetic separation ionic liquid

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Smart antioxidant function enhancing(SAFE)nucleic acid therapy for ROS-related chronic diseases and comorbidities

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Bioactive Materials 2024年第1期31卷 509-524页

作者： Zhiguo Lu Ruichen Zhao Yi Li Jianze Wang Jing Guo Chaobo Bai Jing Chen Jun Yang Yiwan Geng Tianlu Zhang Yanyue Wu Xiyue Jiao Yining Wang Junliang Yuan Xin Zhang State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing100190PR China School of Chemical Engineering University of Chinese Academy of SciencesBeijing100049PR China Department of Neurology Peking University Sixth HospitalPeking University Institute of Mental HealthBeijing100191PR China Department of Radiology State Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing100730PR China Key Laboratory of Biopharmaceutical Preparation and Delivery Institute of Process EngineeringChinese Academy of SciencesBeijing100190PR China

Reactive oxygen species(ROS)-mediated oxidative stress exacerbates chronic diseases such as organ damage and neurodegenerative *** Keap1-Nrf2-ARE pathway is a widely distributed endogenous antioxidant ***,ROS under redox homeostasis regulates a wide range of life ***,smart scavenging of excess ROS under pathological conditions is essential to treat chronic diseases *** study reports a smart antioxidant function enhancement(SAFE)***-demand release of nucleic acid drugs in a pathological ROS environment smartly activates the endogenous antioxidant system,thereby smartly alleviating oxidative stress in an exogenous antioxidant-independent *** structural modulation and ligand modification,we develop SAFE nanoparticles based on nanohybrid complexes(SAFE-complex)adapted to brain delivery of nucleic acid ***-complex with homogeneous monodisperse structure efficiently treat ROS-related neurodegenerative diseases while protecting the major organ from oxidative stress ***,SAFE-complex can stabilize storage in the form of freeze-dried *** data indicate that SAFE nanoparticles hold promise for treating ROS-related chronic diseases and comorbidities through rational transformation.

关键词： Smart antioxidant function enhancing(SAFE)strategy Reactive oxygen species Nucleic acid drugs Keap1-Nrf2-ARE pathway ROS-Associated chronic diseases and comorbidities

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Preparation of Biobased Porous Hydrogels by Citric Acid Grafted Polyacrylic Acid for Rare Earth Elements Separation

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Palpu Chongi Gisul/Journal of Korea Technical Association of the Pulp and Paper Industry 2025年第2期57卷 29-45页

作者： He, Bo Xiang, Wenchao Li, Wenjing He, Ming Yang, Liangrong Yang, Chao Yang, Guihua State Key Laboratory of Green Papermaking and Resource Recycling Qilu University of Technology China State Key Laboratory of Petroleum Molecular & Process Engineering CAS Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences China School of Chemical Engineering University of Chinese Academy of Science China State Key Laboratory of Petroleum Molecular & Process Engineering CAS Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences China School of Chemical & Environmental Engineering China University of Mining & Technology China State Key Laboratory of Green Papermaking and Resource Recycling Qilu University of Technology China State Key Laboratory of Petroleum Molecular & Process Engineering CAS Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences China School of Chemical Engineering University of Chinese Academy of Science China State Key Laboratory of Green Papermaking and Resource Recycling Qilu University of Technology China

Rare earth elements (REEs) are essential for advanced technologies such as energy, electronics, and aerospace. Efficient separation of REEs is critical for the full utilization of natural limited resources. To obtain biobased absorbents with large adsorption capacity, high selectivity, and good reusability, a larger surface area and functionalized surface of absorbents are required. In this work, the porous PAA-CA (citric acid-grafted polyacrylic acid) hydrogels were prepared using a high internal phase emulsion templating method. The physical and chemical properties of PAA-CA were characterized by FTIR, XPS, and SEM. The influence of pH, temperature, initial concentration, and contact time on the adsorption capacity of Pr3+ (light REE) and Er3+ (heavy REE) was investigated and analyzed. The results show that PAA-CA hydrogels exhibited good adsorption performance with a better adsorption capacity for Er3+ of around 400 mg/g. The adsorption process was pH-dependent, with optimal adsorption at pH = 3–7. Kinetic studies revealed that the adsorption followed a pseudo-second-order model, while thermodynamic analyses confirmed the process was spontaneous and endothermic. PAA-CA exhibited good selectivity for Er3+ in a binary ion system, especially containing K+ or Fe3+. Furthermore, the hydrogels retained high adsorption capacities across 10 adsorption-desorption cycles, highlighting their excellent reusability. These results suggest that porous PAA-CA hydrogels are promising materials for the selective recovery of REEs from aqueous solutions. © 2025 Korean Technical Assoc. of the Pulp and Paper Industry. All rights reserved.

关键词： Grafting (chemical)

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Ion conduction path in composite solid electrolytes for lithium metal batteries: from polymer rich to ceramic rich

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Frontiers in Energy 2022年第5期16卷 706-733页

作者： Zhouyu ZHANG Hao CHEN Zhenglin HU Shoubin ZHOU Lan ZHANG Jiayan LUO Key Laboratory for Green Chemical Technology of the Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Shanghai Key Laboratory of Advanced High-Temperature Materials and Precision Forming School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China Huafu High Technology Energy Storage Co. Ltd.Yangzhou 225600China CAS Key Laboratory of Green Process and Engineering Beijing Key Laboratory of Ionic Liquids Clean ProcessState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China

Solid-state electrolytes(SSEs)can address the safety issue of organic electrolyte in rechargeable lithium ***,neither polymer nor ceramic SSEs used alone can meet the demand although great progress has been made in the past few *** solid electrolytes(CSEs)composed of flexible polymers and brittle but more conducting ceramics can take advantage of the individual system for solid-state lithium metal batteries(SSLMBs).CSEs can be largely divided into two categories by the mass fraction of the components:“polymer rich”(PR)and“ceramic rich”(CR)systems with different internal structures and electrochemical *** review provides a comprehensive and in-depth understanding of recent advances and limitations of both PR and CR electrolytes,with a special focus on the ion conduction path based on polymer-ceramic interaction mechanisms and structural designs of ceramic fillers/*** addition,it highlights the PR and CR which bring the leverage between the electrochemical property and the mechanical ***,it further prospects the possible route for future development of CSEs according to their rational design,which is expected to accelerate the practical application of SSLMBs.

关键词： composite solid electrolytes active filler/framework ion conduction path interphase compatibility multilayer design

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Facile Surface engineering of NiCo_(2)O_(4) to Boost Propane Oxidation Activity

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China Petroleum processing & Petrochemical Technology 2024年第1期26卷 19-26页

作者： Yang Jialei Wang Fengyi Lei Yang Zhang Mingchao Sun Shiqiang Xu Wenfan Ke Jiaxiang Wu Haojie Li Xingyun Qi Jian Institute of Materials for Energy and Environment College of Materials Science and EngineeringQingdao UniversityQingdao 266071China School of Chemistry and Chemical Engineering Hubei Key Laboratory of Coal Conversion and New Carbon MaterialsWuhan University of Science and TechnologyWuhan 430081China Department of Burn and Plastic Surgery Qingdao Municipal Hospital Affiliated to Rehabilitation UniversityQingdao 266000China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China

Spinel oxide(NiCo_(2)O_(4))has demonstrated great potential to replace noble metal catalysts for the oxidation reaction of air *** further boost the oxidation ability of such catalysts,in this study,a facile surface-engineering strategy wherein NiCo_(2)O_(4) was treated with different alkali solvents was *** obtained catalyst(NiCo_(2)O_(4)-OH)showed a higher surface alkalinity and more surface defects compared to the pristine spinel oxide,including enhanced structural distortion as well as promoted oxygen *** propane oxidation ability of NiCo_(2)O_(4)-OH was greatly enhanced,with a propane conversion rate that was approximately 6.4 times higher than that of pristine NiCo_(2)O_(4) at a reaction temperature 193℃.This work sets a valuable paradigm for the surface modulation of spinel oxide via alkali treatment to ensure a high-performance oxidation catalyst.

关键词： NiCo_(2)O_(4) surface defects alkali treatment propane oxidation

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ZnO HoMS@ZIF-8 Nanoreactors for Efficient Enrichment and Photoreduction of Atmospheric CO_(2)

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CCS Chemistry 2024年第12期6卷 3065-3076页

作者： Yanze Wei Juan Li Decai Zhao Yasong Zhao Qinghua Zhang Lin Gu Jiawei Wan Dan Wang State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190 Key Laboratory of Biopharmaceutical Preparation and Delivery Chinese Academy of SciencesBeijing 100190 University of Chinese Academy of Sciences Beijing 100049 Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190

The ultimate goal of photocatalytic CO_(2)reduction is to efficiently convert atmospheric CO_(2)into value-added products by designing hierarchical photocatalysts that combine effective harvesting and accelerate activation capabilities of CO_(2)*** this work,we demonstrated direct air-level CO_(2)reduction by hollow multishell structure(HoMS)nanoreactors with zeolitic imidazolate framework-8(ZIF-8)-modified ZnO heteroshells,which offers a promising solution to optimize the mass transfer process via selective sieving and effective enrichment of CO_(2)molecules from the atmospheric ***,heteroshells with ZIF-8 matrix act as pumps that effectively capture CO_(2)molecules,while the cavities serve as tanks to hold these molecules,thus significantly enhancing the transfer kinetics for CO_(2)*** periodic shell-cavity configuration allows the nanoreactor to effectively gather CO_(2)molecules near the catalytic sites,thus increasing conversion opportunities for activated ***,the surface atomic steps on the ZnO/ZIF-8 heterointerfaces with staggered geometry expedite charge transfer and adsorption efficiency,which synergistically boosts the CO_(2)-CO yield up to 3.7μmol/h under CO_(2)flow and 0.7μmol/h under atmospheric conditions with almost complete CO ***,the HoMS nanoreactors offer a potential strategy for solving the“last mile”challenge in practical CO_(2)valorization.

关键词： hollow multishelled structures atmospheric CO_(2)photoreduction ZnO ZIF-8 heterointerface

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Multistate circularly polarized luminescence switches based on dual stimuli-responsive chiralrotaxanes

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Science China Chemistry 2024年第12期67卷 4202-4211页

作者： Wei-Tao Xu Xue Li Xiao-Qin Xu Xu-Qing Wang Hai-Bo Yang Wei Wang Wuhu Hospital East China Normal University(The Second People’s HospitalWuhu)Wuhu 241001China Shanghai Key Laboratory of Green Chemistry and Chemical Processes State Key Laboratory of Petroleum Molecular and Process EngineeringSchool of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai 200062China Shanghai Center of Brain-inspired Intelligent Materials and Devices East China Normal UniversityShanghai 200241China

Aiming at the construction of novel multistate circularly polarized luminescence(CPL)switches,dual stimuli-responsive chiral[2]rotaxanes towards anions and light have been designed and *** the light-controlled on/off F?rster resonance energy transfer(FRET)switching between the emissive stoppers and anion-induced controllable motions of the chiral wheel for the precise regulations of chirality information transfer from the chiral wheel to the emissive stoppers,precisely switching between four CPL emission states with varied emission wavelengths and dissymmetry factors has been successfully realized,making them a promising platform for practical uses such as information storage and *** proof-of-concept study not only provides a novel design strategy for multistate CPL switching but also contributes excellent candidates for the construction of novel smart chiral luminescent materials.

关键词： mechanically interlocked molecules Förster resonance energy transfer aggregation-induced emission pillar[5]arene spiropyran

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Ti_(3)C_(2)T_(x) MXene/carbon composites for advanced supercapacitors:Synthesis,progress,and perspectives

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Carbon Energy 2024年第2期6卷 113-142页

作者： Yanqing Cai Xinggang Chen Ying Xu Yalin Zhang Huijun Liu Hongjuan Zhang Jing Tang College of Materials Science and Engineering North China University of Science and TechnologyTangshanChina Hebei Iron and Steel Laboratory North China University of Science and TechnologyTangshanChina Songshan Lake Materials Laboratory DongguanChina Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular EngineeringEast China Normal UniversityShanghaiChina State Key Laboratory of Petroleum Molecular and Process Engineering(SKLPMPE) Sinopec Research Institute of Petroleum Processing Co.Ltd.BeijingChina Institute of Eco-Chongming ShanghaiChina

MXenes are a family of two-dimensional(2D)layered transition metal carbides/nitrides that show promising potential for energy storage applications due to their high-specific surface areas,excellent electron conductivity,good hydrophilicity,and tunable *** various types of MXenes,Ti_(3)C_(2)T_(x) is the most widely studied for use in capacitive energy storage applications,especially in supercapacitors(SCs).However,the stacking and oxidation of MXene sheets inevitably lead to a significant loss of electrochemically active *** overcome such challenges,carbon materials are frequently incorporated into MXenes to enhance their electrochemical *** review introduces the common strategies used for synthesizing Ti_(3)C_(2)T_(x),followed by a comprehensive overview of recent developments in Ti_(3)C_(2)T_(x)/carbon composites as electrode materials for ***_(3)C_(2)T_(x)/carbon composites are categorized based on the dimensions of carbons,including 0D carbon dots,1D carbon nanotubes and fibers,2D graphene,and 3D carbon materials(activated carbon,polymer-derived carbon,etc.).Finally,this review also provides a perspective on developing novel MXenes/carbon composites as electrodes for application in SCs.

关键词： electrochemical performance MXene/carbon composites supercapacitors

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