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Kexue Tongbao/Chinese Science Bulletin 2018年第26期63卷 2707-2716页

作者： Wang, Ming Jiang, Xuefeng Shanghai Key Laboratory of Green Chemistry and Chemical Process School of Chemistry and Molecular Engineering East China Normal University Shanghai200062 China State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai200032 China

Sulfur-containing compounds are commonly found in important fossil fuels, such as coal and petroleum etc. Therefore, in the process of utilizing these energy sources, we will inevitably produce a large amount of sulfur dioxide gas. According to statistics, the annual emission of sulphur dioxide is 1.5 billion tons worldwide. Sulfur dioxide is one of the four core pollutants in air (nitrogen dioxide, ozone and solid particles are other three core pollutants), its content in the air directly affects the ecological environment and human healt. Meanwhile, sulfur dioxide is widely used as food additives, bleaching agents and other chemical raw materials, and this usage accounts is only 1.6% of its emissions. Sulfonyl-containing compounds exist widely in the drug and organic photoelectric material molecules. How to convert harmful sulfur dioxide into useful chemical products has become a scientific problem demanding prompt solution. In 1957, Meerwein et al. developed the synthesis of arylsulfonyl chlorides from aryl diazonium salts and SO2 gas in the presence of a catalytic amount of CuCl. Afterwards, some CuCl-catalyzed strategies were developed and applied to preparations of aryl sulfonyl chlorides from different organometallic reagent and SO2 gas. Sulfur dioxide, as a toxic gas, is not easy to handle and store in the process of its use. Therefore, the development of sulfur dioxide gas surrogates has become an important research direction in organic chemistry. In 2010, the Willis' group employed the known complex DABSO DABCO•(SO2)2 (DABCO=1,4-diazabicyclo [2.2.2] octane) to synthesize aryl N-aminosulfonamides via the palladium- catalyzed three-component coupling of aryl iodides, hydrazines and DABSO. Subsequently, the Wu group described a palladium-catalyzed three-component coupling of arylboronic acids, DABSO and hydrazines in the presence of dioxygen. Inorganic sulfites also can be used as the source of sulfur dioxide. In 2012, the Wu's group disclosed a palladium-cat

关键词： Chlorine compounds

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Corrigendum to <'The evolution of carbon footprint in the yangtze river delta city cluster during economic transition 2012–2015′>

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Resources, Conservation and Recycling 2022年 184卷

作者： Chengqi Xia Heran Zheng Jing Meng Shuping Li Pengfei Du Yuli Shan State Key Laboratory of Environmental Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China Industrial Ecology Programme Department of Energy and Process Engineering Norwegian University of Science and Technology Trondheim 7491 Norway The Bartlett School of Sustainable Construction University College London London WC1H0QB UK Institute of Blue and Green Development Shandong University Weihai 264209 China Integrated Research for Energy Environment and Society (IREES) Energy and Sustainability Research Institute Groningen University of Groningen Groningen the Netherlands

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Benzene alkylation with methanol over phosphate modified hierarchical porous ZSM-5 with tailored acidity

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Chinese Journal of Chemical engineering 2017年第9期25卷 1187-1194页

作者： Jinghui Lyu Hualei Hu Carolyn Tait Jiayao Rui Caiyi Lou Qingtao Wang Wenwen Han Qunfeng Zhang Zhiyan Pan Xiaonian Li Industrial Catalysis Institute of Zhejiang University of Technology State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology Department of Environmental Engineering Zhejiang University of Technology Department of Chemical and Biochemical Engineering University of Western Ontario

The acidity and acid distribution of hierarchical porous ZSM-5 were tailored via phosphate modification. The catalytic results showed that both benzene conversion and selectivity of toluene and xylene increased with the presence of appropriate amount of phosphorus. Meanwhile, side reactions such as methanol to olefins related with the formation of by-product ethylbenzene formation and isomerization of xylene to meta-xylene were suppressed efficiently. The acid strength and sites amount of Br?nsted acid of the catalyst were crucial for improving benzene conversion and yield of xylene, whereas passivation of external surface acid sites played an important role in breaking thermodynamic equilibrium distribution of xylene isomers.

关键词： Hierarchical porous ZSM-5 Phosphate modification Benzene alkylation with methanol Xylene

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Observing the structural variation of Dahuangshan lignite and four derived residues by non-destructive techniques and flash pyrolysis

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Fuel 2020年 269卷

作者： Guang-Hui Liu Zhi-Min Zong Zhi-Hao Ma Fang-Jing Liu Xian-Yong Wei Yu-Hong Kang Xing Fan Feng Yun Ma Jing Mei Liu Wen Long Mo Key Laboratory of Coal Processing and Efficient Utilization Ministry of Education China University of Mining & Technology Xuzhou 221116 Jiangsu China State Key Laboratory of High-efficiency Utilization and Green Chemical Engineering Ningxia University Yinchuan 750021 Ningxia China Laboratory of Coal Clean Conversion & Chemical Engineering Process Xinjiang Uyghur Autonomous Region College of Chemistry and Chemical Engineering Xinjiang University Urumqi 830046 Xinjiang China Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization School of Chemistry and Chemical Engineering Yulin University Yulin 719000 Shaanxi China

Structural features of Dahuangshan lignite (DL) and 4 derived residues (DRs) were analyzed to understand the internal correlation between the associative fragments and organic macromolecular structures in DL. The structural changes before and after DL extraction and degradation can be effectively understood through the combination of multiple tools. The results show that >C-OH and >C-O- moieties are dominated on all the sample surfaces, while pyrrolics and SSSs ( i.e. , SO 4 2− , SO 4 2− , and -SO 3 H) are the most abundant nitrogen- and sulfur-containing species, respectively, from X-ray photoelectron spectrometric analysis. According to thermogravimetric and Fourier transform infrared semi-quantitative analyses, the cleavage of weak and medium strength covalent bonds, i.e. , >C al -X bonds (X denotes H, C al <, O-, N<, and S-), should be the main reaction during the DL degradation. With increasing the destructive degree, the aromaticity of organic matter from the DRs gradually increases, which is consistent with X-ray photoelectron spectrometric analysis. In addition, combined with the Curie-point pyrolyzer-gas chromatograph/mass spectrometric analysis, a considerable portion of arenes and arenols, especially alkyl-substituted naphthalenes and phenols are also present in nested forms. The possible macromolecular frameworks and nested groups of DL were further speculated. Insight into the structural difference among DL and DRs facilitates the rational and targeted utilization of such DRs.

关键词： Lignite Derived residues Structural variation Chemical structures Flash pyrolysis

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Formation of Septuple-Shelled(Co2/3Mn1/3)(Co5/6Mn1/6)2O4 Hollow Spheres as Electrode Material for Alkaline Rechargeable Battery

Formation of Septuple-Shelled(Co2/3Mn1/3)(Co5/6Mn1/6)2O4 Hol...

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马尔文帕纳科第15届中国用户X射线分析仪器技术交流会

作者： Xiaoxian Zhao Ranbo Yu Hongjie Tang Dan Mao Jian Qi Bao Wang Yu Zhang Huijun Zhao Wenping Hu Dan Wang Department of Physical Chemistry School of Metallurgical and Ecological Engineering University of Sc State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education Sch Centre for Clean Environment and Energy Gold Coast Campus Griffith University Queensland 4222 Austra Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of Chemistry School of Scienc State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of

The multishelled(Co2/3Mn1/3)(Co5/6Mn1/6)2O4 hollow microspheres with controllable shell numbers up to septuple shells are synthesized using developed sequential templating ***,the septuple-shelled complex metal oxide hollow microsphere is synthesized for the first time by doping Mn into Co3O4,leading to the change of crystalline rate of *** as electrode materials for alkaline rechargeable battery,it shows a remarkable reversible capacity(236.39 mAh g-1 at a current density of 1 A g-1 by threeelectrode system and 106.85 mAh g-1 at 0.5 A g-1 in alkaline battery)and excellent cycling performance due to its unique structure.

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Three-dimensional numerical study of flow characteristic and membrane fouling evolution in an enzymatic membrane reactor

arXiv

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arXiv 2018年

作者： Hu, Xu-Qu Wu, Pai-Qing Wang, Xing-Yi Zhang, Hai-Cheng Luo, Jian-Quan State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body College of Mechanical and Vehicle Engineering Hunan University Changsha410082 China State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China

In order to enhance the understanding of membrane fouling mechanism, the hydrodynamics of granular flow in a stirred enzymatic membrane reactor was numerically investigated in the present study. A three-dimensional Euler-Euler model, coupled with the k-Ε mixture turbulence model and the drag function proposed by Syamlal and O’Brien (1989) for interphase momentum exchange, was applied to simulate the two-phase (fluid-solid) turbulent flow. Numerical simulations of single- or two-phase turbulent flow under various stirring speed were implemented. The numerical results coincide very well with some published experimental data. Results for the distributions of velocity, shear stress and turbulent kinetic energy were provided. Our results show that the increase of stirring speed could not only enlarge the circulation loops in the reactor, but it can also increase the shear stress on the membrane surface and accelerate the mixing process of granular materials. The time evolution of volumetric function of granular materials on the membrane surface has qualitatively explained the evolution of membrane fouling. Copyright © 2018, The Authors. All rights reserved.

关键词： Granular materials

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Thermal treatment of Shengli lignite and subsequent oxidation

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Journal of Analytical and Applied Pyrolysis 2020年 152卷

作者： Ya Li Zhi-Min Zong Yang-Yang Zhang Xian-Yong Wei Yu Zhu Key Laboratory of Coal Processing and Efficient Utilization Ministry of Education China University of Mining & Technology Xuzhou 221116 Jiangsu China State Key Laboratory of High-efficiency Utilization and Green Chemical Enginneering Ningxia University Yinchuan 750021 Ningxia China Laboratory of Coal Clean Conversion & Chemical Engineering Process Xinjiang Uyghur Autonomous Region College of Chemistry and Chemical Engineering Xinjiang University Urumqi 830046 Xinjiang China

Shengli lignite (SL) was thermally treated at 150 °C–650 °C. SL and each residue (R TT ) from the thermal treatment (TT) were oxidized using aqueous hydrogen peroxide (AHPO)/acetic acid (AA) to afford a soluble portion (SP). SL and each R TT were characterized with a X-ray diffractometer and Fourier transform infrared spectrometer, and 11 typical benzenepolycarboxylic acids (BPCAs I ) in the SPs were analyzed with a high-performance liquid chromatograph. The results show that the condensation degree (CD ARs ) of aromatic rings (ARs) in each R TT is higher than that of SL and increases with raising the TT temperature, while the oxidation of a R TT resulting from lower-temperature TT produces BPCAs I , especially mellitic acid, in higher yields. HOO· produced in AHPO/AA could play an crucial role in oxidizing AR-containing macromolecular species in SL and each R TT to BPCAs I .

关键词： Shenli lignite Thermal treatment Oxidation Benzenepolycarboxylic acids

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Surface Atomic Architecture: engineering Surface Atomic Architecture of NiTe Nanocrystals Toward Efficient Electrochemical N2Fixation (Adv. Funct. Mater. 39/2020)

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Advanced Functional Materials 2020年第39期30卷

作者： Menglei Yuan Qiongguang Li Jingxian Zhang Jiawen Wu Tongkun Zhao Zhanjun Liu Le Zhou Hongyan He Bin Li Guangjin Zhang CAS Key Laboratory of Green Process Engineering State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China Center of Materials Science and Optoeletronics Engineering University of Chinese Academy of Sciences Beijing 100049 China Beijing Engineering Research Center of Printed Electronics Beijing Institute of Graphic Communication Beijing 102600 China CAS Key Laboratory of Carbon Materials Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan 030001 China Zhengzhou Tobacco Research Institute of CNTC No 2 Fengyang Street Zhengzhou High‐Tech Development District Zhengzhou 450001 China

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Effective production of succinic acid from coconut water (Cocos nucifera) by metabolically engineered Escherichia coli with overexpression of Bacillus subtilis pyruvate carboxylase

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Biotechnology Reports 2019年 24卷 e00378-e00378页

作者： Olajuyin, Ayobami Matthew Yang, Maohua Thygesen, Anders Tian, Jiangnan Mu, Tingzhen Xing, Jianmin State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China University of Chinese Academy of Sciences Beijing 100049 China Henan Provincial People Hospital Zhengzhou Henan China Department of Chemical and Biochemical Engineering Technical University of Denmark Lyngby 2800 DK Denmark Sino-Danish Center for Education and Research Niels Jensensvej 2 Aarhus C 8000 DK Denmark

Succinic acid is an important acid which is used in medicine and pharmaceutical companies. Metabolically engineered Escherichia coli strain was used for the effective production of succinic acid using Cocos nucifera water, which contained 5.00 ± 0.02 g/L glucose, 6.10 ± 0.01 g /L fructose and 6.70 ± 0.02 g /L sucrose. Fermentation of C. nucifera water with E. coli M6PM produced a final concentration of 11.78 ± 0.02 g/L succinic acid and yield of 1.23 ± 0.01 mol/mol, 0.66 ± 0.01 g/g total sugars after 72 h dual-phase fermentation in M9 medium while modeled sugar was 0.38 ± 0.02 mol/mol total sugars. It resulted in 72% of the maximum theoretical yield of succinic acid. Here we show that novel substrate of C. nucifera water resulted in effective production of succinic acid. These investigations unveil the importance of C. nucifera water as a substrate for the production of biochemicals. © 2019

关键词： Bacillus subtilis Cocos nucifera water Escherichia coli Fermentation Succinic acid

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Air-promoted selective hydrogenation of phenol to cyclohexanone at low temperature over Pd-based nanocatalysts

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Science China Chemistry 2017年第11期60卷 1444-1449页

作者： Qing Guo Shiguang Mo Pengxin Liu Weidong Zheng Ruixuan Qin Chaofa Xu Youyunqi Wu Binghui Wu Nanfeng Zheng Department of Chemical and Biochemical Engineering National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-EstersState Key Laboratory for Physical Chemistry of Solid SurfacesCollaborative Innovation Center of Chemistryfor Energy Materialsand Engineering Research Center for Nano-Preparation Technology of Fujian ProvinceCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China

Attaining high activity with high selectivity at low temperature is challenging in the selective hydrogenation of phenol to cyclohexanone due to its high activation energy （Ea, 55-70 kJ/mol）. Here we report a simple and efficient strategy for phenol hydrogenation catalyzed by Pd in aqueous phase at 30 ℃ by introducing air to promote the catalysis. With the assistance of air, 〉99% conversion and 〉99% selectivity were achieved over Pd（111）/Al2O3 with an overall turnover frequency （TOF） of 621 h-1, -80 times greater than that of the state-of-art Pd catalyst at 30 ℃. Mechanism studies revealed that phenol was activated to generate phenoxyl radicals. The radicals were yielded from the reaction between phenol and hydroxyl radicals in the presence of hydrogen, oxygen and protic solvent on Pd. The phenoxyl pathway resulted in a low apparent Ea （8.2 kJ/mol） and thus high activity. More importantly, this strategy of activating substrate by air can be adapted to other Pd based catalysts, offering a new thinking for the rational design of cyclohexanone production in industry.

关键词： selective hydrogenation phenol palladium nanocatalysis radical

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